The Knowledge Factory - Sur le même thème https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Nuclear-fusion-French-superconducting-coils-ready-for-the-JT-60SA-tokamak-.aspx DRF english version en-US https://www.cea.fr/_layouts/15/images/i2i/icon-144x144-1033.png The Knowledge Factory - Sur le même thème https://www.cea.fr/drf/english Rapid screening of lithium-ion battery electrolytes by radiolysis https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/rapid-screening-of-lithium-ion-battery-electrolytes-by-radiolysis.aspx Researchers at Iramis, CEA-Liten and their partners in Nantes have shown that it is possible to quickly select the best electrolyte for a lithium-ion battery by gamma irradiation. The production of dihydrogen therefore provides a marker of the electrolyte’s performance. Lithium-ion batteries ; Energy storage ; Tools & research instruments general public ; Researchers ; Journalists Iramis Découvertes et avancées ; Scientific result Thu, 20 Oct 2022 10:00:00 GMT High-energy ions reduce plasma turbulence https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/high-energy-ions-reduce-plasma-turbulence.aspx Based on experiments conducted in the European tokamak JET, physicists from the IRFM and their partners demonstrated that the increased presence of highly energetic deuterium ions improves the stability of the fusion plasma. ITER’s plasma should benefit from a similar effect, thanks to the helium nuclei produced by fusion. Tokamak general public ; Journalists ; Researchers IRFM Découvertes et avancées ; Scientific result Thu, 21 Jul 2022 10:00:00 GMT An artificial leaf that produces solar hydrogen https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/an-artificial-leaf-that-produces-solar-hydrogen.aspx Researchers from the CEA-Irig and their Vietnamese partners have developed an artificial leaf capable of converting solar energy into hydrogen, with a 2% conversion yield. This is a promising achievement towards the storage of renewable energy sources! Hydrogen ; Photovoltaic solar power ; Chemistry general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Fri, 17 Jun 2022 10:00:00 GMT The photosynthetic “booster” of microalgae revealed https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/the-photosynthetic-booster-of-microalgae-revealed.aspx An international collaboration involving researchers from the CEA-BIAM and the Carnegie Institution at Stanford University (USA) has just deciphered the mechanisms that microalgae use to capture atmospheric CO2 in a highly efficient manner. Vegetal physiology ; Microalgae ; Photosynthesis general public ; Journalists ; Researchers BIAM Découvertes et avancées ; Scientific result Thu, 28 Apr 2022 10:00:00 GMT Europe: a key dimension of the CEA's research strategy https://www.cea.fr/drf/english/Pages/News/Institutional-news/2022/Europe-important-arena-CEA-research.aspx Involvement in funding programmes, contribution to public policies through its scientific expertise, and development of major partnerships: the CEA has strengthened its European strategy over the past few years, making cooperation its watchword. Bertrand Bouchet, the CEA director of European Affairs, discusses the CEA’s position on Europe and the French presidency of the EU Council. Institutional ; Fundamental Research ; Energies ; New technologies Décryptage ; Europe ; Focus horizon 2020;EARTO;PFUE;Europe;EU; Mon, 28 Feb 2022 11:00:00 GMT The effectiveness of bioenergy crops must be properly assessed https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/the-effectiveness-of-bioenergy-crops-must-be-properly-assessed.aspx According to a collaboration coordinated by the LSCE (CEA-CNRS-UVSQ), it is necessary to take into account the biophysical effects of bioenergy crops (including CO2 capture and sequestration) in order to properly assess their effectiveness in the fight against climate change. Bioenergy ; Climate ; Climatic models general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Tue, 21 Dec 2021 11:00:00 GMT When reactor physics meets game theory https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/when-reactor-physics-meets-game-theory.aspx An international collaboration involving the CEA-Irfu and the CEA’s Energy Directorate has revealed a subtle neutron clustering mechanism by rigorously combining nuclear reactor experiments, modelling and simulations, all of which are extremely demanding. This result goes beyond the scope of just nuclear safety. Research reactor ; Nuclear safety ; Simulation & modelling general public ; Journalists ; Researchers Irfu Découvertes et avancées ; Scientific result Tue, 12 Oct 2021 10:00:00 GMT An enzymatic process for reducing CO2 https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/An-enzymatic-process-for-reducing-CO2.aspx Researchers from the CEA-Irig and their partners have developed a new enzymatic process for reducing CO2 and oxidizing CO. Efficient and able to operate under mild conditions, it could be used to purify gas from biomass pyrolysis in order to produce fuels or chemical precursors. Bioenergy ; Molecular mechanisms ; Chemistry general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Mon, 06 Sep 2021 10:00:00 GMT Quantum physics finds its way into the heart of flowers https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/quantum-physics-finds-its-way-into-the-heart-of-flowers.aspx Researchers from the CEA-Joliot (I2BC) and their partners have deciphered for the first time the quantum process of energy dissipation in aggregates of natural flower carotenoids. This fundamental biological mechanism could inspire the design of photovoltaic materials capable of supplying two electrons for every photon. Molecular mechanisms ; Vegetal physiology ; Quantum Physics ; Photovoltaic solar power general public ; Journalists ; Researchers Joliot Découvertes et avancées ; Scientific result Fri, 03 Sep 2021 10:00:00 GMT Heating of fusion plasmas: validation of an innovative antenna concept https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/heating-of-fusion-plasmas-validation-of-an-innovative-antenna-concept.aspx A mock-up of a high-power travelling wave antenna has been successfully tested at the IRFM. This new family of antennas operates at a lower voltage than current antennas, requires fewer adjustments, and can be deployed inside the tokamak. In short, it is better adapted to the hostile environment of a tokamak! Tools & research instruments ; Tokamak ; Fusion through magnetic containment general public ; Journalists ; Researchers Irfu Découvertes et avancées ; Scientific result Wed, 28 Jul 2021 10:00:00 GMT Phytoplankton: cellular architecture and energy metabolism https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/phytoplankton-cellular-architecture-and-energy-metabolism.aspx Drawing upon the 3D reconstruction of the cellular architecture of several phytoplankton families, researchers at the CEA-Irig have demonstrated that the physiological responses of these eukaryotes are associated with certain characteristics of their energy-producing organelles. This work thus provides new perspectives for the production of algal biomass, upstream of biotechnology applications. Cell and molecular imaging ; Microalgae ; Molecular mechanisms general public ; Journalists ; Researchers IRIG Scientific result ; Découvertes et avancées Thu, 03 Jun 2021 10:00:00 GMT More durable hybrid membranes for fuel cells https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/more-durable-hybrid-membranes-for-fuel-cells-.aspx Based in particular on multiscale morphological analyses, researchers at the CEA-Irig have developed a new generation of hybrid proton exchange membranes for fuel cells with promising performance and durability. Energy storage general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Tue, 01 Jun 2021 10:00:00 GMT How do bio-inspired iron porphyrin catalysts work? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/how-do-bio-inspired-iron-porphyrin-catalysts-work.aspx Researchers from the CEA-Joliot and their partners have studied the efficiency of bio-inspired catalysts at reducing CO2 on the basis of their chemical structure. Their results provide an opportunity to develop catalysts that can be used on a large scale ... as well as reduce the accumulation of CO2 in the atmosphere! Bio-inspired catalysis ; Bioenergy general public ; Journalists ; Researchers Joliot Découvertes et avancées ; Scientific result Tue, 11 May 2021 10:00:00 GMT IAEA Conference Reviews Latest Advancements in Fusion https://www.cea.fr/drf/english/Pages/News/Institutional-news/2021/fec-2020-conference-fusion.aspx High-level experts from around the world will discuss progress towards achieving energy production from nuclear fusion at an International Atomic Energy Agency (IAEA) meeting next week. The 28th IAEA Fusion Energy Conference (FEC) will take place virtually from 10 to 15 May. It is organized by the IAEA and co-hosted by the ITER Organization and the Government of France through the French Alternative Energies and Atomic Energy Commission (CEA). Energies ; Nuclear energy ; Nuclear fusion ; Fusion through inertial containment ; Fusion through magnetic containment Companies ; general public ; Institutions ; Journalists ; Researchers Cadarache Articles & files ; News ; Highlight ; Event fusion;nuclear;AIEA;reactor;ITER; Fri, 07 May 2021 14:19:55 GMT A deuterium “airbag” that protects against the potentially harmful effects of plasma instabilities https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/a-deuterium-airbag-that-protects-against-the-potentially-harmful-effects-of-plasma-instabilities.aspx A collaboration involving the CEA-IRFM, the European consortium EUROfusion, Iter and American partners has shown that it is possible to protect successfully the internal structures of a fusion reactor against damage caused by very energetic electrons that escape the fusion plasma following a major instability. Tokamak ; Fusion through magnetic containment general public ; Journalists ; Researchers IRFM Découvertes et avancées Fri, 30 Apr 2021 10:00:00 GMT Green chemistry and biofuel: the mechanism of a key photoenzyme decrypted https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/Green-chemistry-and-biofuel-the-mechanism-of-a-key-photoenzyme-decrypted-.aspx Green Chemistry ; Chemistry ; 3rd generation biofuel ; Microalgae ; Synchrotron ; Laser ; Molecular mechanisms ; Bioenergy Press release Fri, 09 Apr 2021 10:00:00 GMT Tungsten and fusion plasma: Cohabitation without contamination! https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/tungsten-and-fusion-plasma--cohabitation-without-contamination-.aspx Physicists from the IRFM explain for the first time why, contrary to what is observed in most tokamaks, tungsten atoms from the inner walls do not accumulate in the WEST fusion plasma. ITER should also be free of this contamination, which degrades plasma performance. Tokamak ; Fusion through magnetic containment ; Tools & research instruments general public ; Journalists ; Researchers IRFM Scientific result Mon, 01 Mar 2021 11:00:00 GMT A direct way to transform CO2 into methane with green electricity https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/A-direct-way-to-transform-CO2-into-methane-with-green-electricity.aspx CEA-Irig researchers are identifying a catalyst to produce methane directly from CO2. Bio-inspired catalysis Companies ; general public ; Institutions ; Journalists ; Researchers IRIG News ; Scientific result Wed, 03 Feb 2021 11:00:00 GMT Corrosion models predict the behavior of radioactive waste stored at depth https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/corrosion-models-predict-the-behavior-of-radioactive-waste-stored-at-depth.aspx Using an approach combining experimentation, characterization and multi-scale modeling, researchers from Iramis and their partners from the Direction des énergies and Andra have studied the corrosion of glass and metal in particular conditions of radioactive waste storage. Radioactive waste ; Chemistry ; Materials ; Characterisation general public ; Journalists ; Researchers Iramis Scientific result Wed, 03 Feb 2021 11:00:00 GMT In-Pb anodes for use with Mg-ion batteries https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/in-pb-anodes-for-use-with-mg-ion-batteries.aspx A team from the CEA-Iramis has developed a new negative electrode material for Mg-ion batteries, based on the compound In-Pb. The synergistic action of indium and lead favors a high electrical capacity, to the detriment of the material’s reversibility, which needs to be further investigated. Batteries ; Chemistry ; Energy storage general public ; Journalists ; Researchers Iramis Scientific result Mon, 14 Dec 2020 11:00:00 GMT Discovery of a giant protein with a key role in the storage of energy-rich molecules in microalgae https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Discovery-of-a-giant-protein-with-a-key-role-in-the-storage-of-energy-rich-molecules-in-microalgae.aspx Researchers from the Biam (CEA) have discovered an essential role for a novel giant protein involved in the degradation of “lipid droplets”, which are the primary site of carbon and energy storage in certain microalgae. Microalgae Companies ; Institutions ; Journalists ; Researchers BIAM News ; Scientific result Thu, 03 Dec 2020 11:00:00 GMT CO2 valorization: optimization of a bio-inspired catalyst https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/CO2-valorization-optimization-of-a-bio-inspired-catalyst.aspx Researchers at CEA-Joliot (I2BC) have optimized a bio-inspired CO2 reduction catalyst by modifying its 3D topology. Bio-inspired catalysis Companies ; general public ; Institutions ; Journalists ; Researchers Joliot News ; Scientific result Tue, 24 Nov 2020 11:00:00 GMT Investigation of a nano-architectured composite anode https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/investigation-of-a-nano-architectured-composite-anode.aspx In order to improve lithium-ion batteries, IRIG researchers are replacing the graphite of the negative electrode with silicon-based materials that can store much more lithium. These new nano-architected composite materials are made up of active domains of Si-amorphous and crystalline FeSi2 nanoparticles dispersed in a graphite matrix. They are studying the ageing phenomenon of these anodes capable of withstanding 700 cycles with a capacity of nearly 70%. Lithium-ion batteries general public ; Journalists ; Researchers IRIG Scientific result Mon, 02 Nov 2020 11:00:00 GMT SCARCE: 18 months of collaboration between a university in Singapore and CEA https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/scarce--months-of-collaboration-between-a-university-in-sSingapore-and-cea.aspx Inaugurated in March 2019, the joint laboratory between Nanyang Technological University (NTU) of Singapore and CEA displays its first series of publications co-signed by researchers from NTU, CEA-Iramis, ICSM and DES in Marcoule. Environment ; Energies ; New industrial production processes ; Electronics ; Materials general public ; Journalists ; Researchers DRF Scientific result ; International Mon, 28 Sep 2020 10:00:00 GMT A first step towards photochromic photovoltaic window panes https://www.cea.fr/drf/english/Pages/News/a-first-step-towards-photochromic-photovoltaic-window-panes.aspx A CEA team, in collaboration with the Pablo de Olavide University (Seville, Spain) and the Swiss company Solaronix, has invented a new family of photochromic dyes for photovoltaics. The result of this work paves the way for photovoltaic glasses whose transparency adapts to the luminosity, an interesting application in particular in the buildings and automotive sectors. Photovoltaic solar power general public ; Journalists ; Researchers IRIG Scientific result Mon, 15 Jun 2020 10:00:00 GMT Highly controlled radical chemistry https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Highly-controlled-radical-chemistry.aspx The CEA-Irig (IBS) has reported in Nature Catalysis a review on SAM proteins, a type of catalyst that produces highly reactive radical species. Chemistry ; Bio-inspired catalysis Companies ; Institutions ; Journalists ; Researchers IRIG Scientific result Wed, 03 Jun 2020 10:00:00 GMT Separation chemistry: a step toward greener metal recycling processes https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Separation-chemistry-a-step-toward-greener-metal-recycling-processes.aspx Fundamental Research ; Environment ; Dismantling ; Chemistry ; Materials News ; Press release ; Focus Tue, 25 Feb 2020 11:00:00 GMT Supercapacitors: carbon nanotube “mats” on aluminum foil https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/supercapacitors-carbon-nanotube-mats-on-aluminum-foil.aspx A new electrode material for supercapacitors has been developed by the Iramis and its partners: composed of carbon nanotube “mats” aligned on aluminum foil, it should significantly increase the amount of stored electrical power. This is an essential result for their industrialization by the startup company NawaTechnologies. Energy storage ; Innovation for industry general public ; Journalists ; Researchers Scientific result Thu, 20 Feb 2020 11:00:00 GMT Study of the possible toxicity of tungsten particles emitted by Iter https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Study-of-the-possible-toxicity-of-tungsten-particles-emitted-by-Iter.aspx CEA researchers and their partners have synthesized and characterized tungsten particles similar to those to be produced by the Iter fusion reactor and have identified their cyto-genotoxic properties in lung models. Iter ; Toxicology Companies ; general public ; Institutions ; Researchers Joliot News ; Scientific result Wed, 29 Jan 2020 11:00:00 GMT Fukushima: lessons learnt from an extraordinary case of soil decontamination https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/Fukushima-lessons-learnt-from-an-extraordinary-case-soil-decontamination.aspx Following the accident at the Fukushima nuclear power plant, in 2011, the Japanese authorities decided to carry out major decontamination works in the affected area. The EGU is publishing a synthesis of approximately sixty scientific publications that together provide an overview of the decontamination strategies used and their effectiveness. Environment ; Radioactivity ; Nuclear energy Companies ; general public ; Institutions ; Journalists ; Researchers LSCE Scientific result Thu, 12 Dec 2019 11:00:00 GMT What will the wind do in the coming decades? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/What-will-the-wind-do-in-the-coming-decades.aspx According to an international study involving the LSCE, a reversal in the trend of terrestrial wind potential was observed in 2010. Its correlation with well-identified climatic mechanisms suggests the potential to optimize wind generation throughout the lifetime of facilities. Climate ; Renewable energies general public ; Journalists ; Researchers LSCE Scientific result ; International Tue, 19 Nov 2019 11:00:00 GMT Irradiating electrodes for more powerful and long-lived Li-ion batteries https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/irradiating-electrodes-for-more-powerful-li-ion-batteries.aspx A large collaboration including the Iramis and two other CEA divisions (Basic Research Division and Nuclear Energy Division) has proposed to irradiate the graphite anodes of Li-ion batteries before their first use. This technique, similar to food or medicine processing, would lead to better results than the current industrial techniques for a potentially lower cost. Batteries ; Innovation for industry Journalists ; general public ; Researchers Iramis Scientific result Mon, 18 Feb 2019 11:00:00 GMT Nuclear fusion: French superconducting coils ready for the JT-60SA tokamak https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Nuclear-fusion-French-superconducting-coils-ready-for-the-JT-60SA-tokamak-.aspx Energies ; Nuclear energy ; Nuclear fusion ; Fusion through magnetic containment ; Tokamak ; Iter Press release ; Partnerships ; European & international partnerships ; International Mon, 05 Feb 2018 11:00:00 GMT BACCARA discovers the secret of capacity decay in Nano-silicon-based Lithium-ion Batteries https://www.cea.fr/drf/english/Pages/News/Institutional-news/2018/BACCARA-discovers-the-secret-of-capacity-decay--in-Nano-silicon-based-Lithium-ion-Batteries.aspx Scientists have performed a thorough analysis of promising silicon-based electrode technology with regard to Li-ion battery decay in the course of charge/discharge cycles. Oversaw by the CEA, this project was carried out through a balanced partnership between three academic and as many industry partners. Energies ; Energy efficiency ; Energy storage ; Batteries ; Lithium-ion batteries Journalists ; general public ; Researchers Grenoble News ; Newsletter ; CEA Research News ; European & international partnerships decay;H2020;batteries;Li-Ion;energy union and climate; Fri, 02 Feb 2018 17:00:00 GMT An industrial chair for the monitoring of greenhouse gas emissions https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Launch-of-the--Trace-industrial-chair-for-the-monitoring-of-greenhouse-gas-emissions.aspx The Trace industrial chair aims to develop better monitoring methodologies of greenhouse gas emissions (carbon dioxide and methane) by satellite and with the help of new sensors deployed close to methane-emitting sites. Climate ; Energies ; Environment Institutions ; Journalists ; Researchers ; Partners ; Suppliers DRF Valorisation Press release ; Focus Thu, 18 Jan 2018 11:00:00 GMT Doping graphene nanosheets for on-chip supercapacitors https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/doping-graphene-nanosheets-for-on-chip-supercapacitors.aspx Three teams from the Inac have manufactured and characterized highly nitrogen-doped graphene nanosheets and tested them as supercapacitor electrodes. The performances obtained compare favorably with state of the art carbon electrodes. This promising technology has yet to be optimized for on-chip applications. Energy storage Researchers ; general public ; Journalists Inac Scientific result Wed, 13 Dec 2017 11:00:00 GMT Cement as a way to condition certain nuclear wastes? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/cement-as-a-way-to-condition-certain-nuclear-wastes.aspx Researchers from Iramis studied the irradiation resistance of several different cements, so as to incorporate nuclear waste from the CEA center of Marcoule into them. The result: these cements are resistant to the doses planned for this storage. Radioactive waste Researchers ; general public ; Journalists Iramis Scientific result Mon, 11 Dec 2017 11:00:00 GMT The corrosion of steel in a clay environment https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/the-corrosion-of-steal-in-a-clay-environment.aspx A team from Iramis analyzed the long-term corrosion of steel in a clay environment, under conditions of geological storage for nuclear waste. They observed that an iron oxide layer of sub-micron thickness appears on the steel surface, stabilizing the kinetics of the deterioration. This result enhances the corrosion models of the CEA and the Andra! Radioactive waste Researchers ; general public ; Journalists Iramis Scientific result Mon, 27 Nov 2017 11:00:00 GMT A better understanding of heat deposits on Iter’s divertor https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/a-better-understanding-of-heat-deposits-on-iters-divertor.aspx A team from the IRFM performed digital 3D simulations of the turbulence of fusion plasma in a geometry identical to that of Iter, particularly in terms of the floor of the tokamak (divertor). These studies make it possible to consider ways to control the thermal flows that are received by the most exposed components. Tokamak Researchers ; general public ; Journalists IRFM Scientific result Mon, 13 Nov 2017 11:00:00 GMT Photosynthesis: oil in the gears https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/Photosynthesis-oil-in-the-gears.aspx Researchers from the Biam have discovered one of the "lubricants" of the complex gears involved in photosynthesis. Photosynthesis general public ; Researchers ; Journalists BIAM Scientific result Fri, 10 Nov 2017 11:00:00 GMT Ionic Liquid: Weak or Strong Electrolyte? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/ionic-liquid-weak-or-strong-electrolyte.aspx A collaboration involving IRAMIS has characterized the paradoxical properties of ionic liquids— electrolytes which appear as either strong or weak depending on the scale that they are probed—and inferred a path to improve their electrical conductivity. Confined in carbon nanotubes, the electrolyte under scrutiny is very stable at high temperature and could be put to good use in batteries or fuel cells. Energy storage Researchers ; general public ; Journalists Iramis Scientific result Sun, 15 Oct 2017 10:00:00 GMT A Super-Resolution Thermal Diagnosis for WEST https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/a-super-resolution-thermal-diagnosis-for-west.aspx The WEST tokamak is now equipped with an infrared thermographic endoscope developed by IRFM. Its very high spatial resolution (100 microns) will enable researchers to study the thermal behavior of a critical component in ITER, the divertor, in great detail. Tokamak Researchers ; general public ; Journalists IRFM Scientific result Fri, 13 Oct 2017 10:00:00 GMT Microalgae: the Enzyme that Produces Hydrocarbons https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/microalgae-the-enzyme-that-produces-hydrocarbons.aspx In collaboration with peers from the Frédéric-Joliot Institute at CEA, researchers from BIAM have discovered an enzyme that allows microalgae to convert some of their fatty acids into hydrocarbons using light energy. Bioenergy ; Vegetal physiology ; Microalgae Researchers ; Journalists ; general public Joliot Highlight ; Scientific result Fri, 01 Sep 2017 10:00:00 GMT Using Carrots to Boost Solar Technologies https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/using-carrots-to-boost-solar-technologies.aspx Researchers from the CEA Frédéric-Joliot Institute have identified photosynthesis mechanisms that protect plants from excessive sunlight, with the idea of mimicking them to optimize solar technologies. Renewable energies ; Photosynthesis Researchers ; general public ; Journalists Joliot Scientific result Tue, 25 Jul 2017 10:00:00 GMT Higher Efficiency Achieved in Li-ion Batteries Thanks to Metal Oxide Nanoparticles https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/higher-efficienc-achieved-in-li--on-batteries-thanks-to-metal-oxide-nanoparticles.aspx A collaboration led by IRAMIS has demonstrated that the graphite in Li-ion batteries electrodes can be advantageously replaced by a material made of nitrogen-doped tin oxide nanoparticles. Energy storage Researchers ; general public ; Journalists Iramis Scientific result nanoparticules;nanotechologie;dopage;pyrolyse laser;SnO2;batterie Lithium-ion; Wed, 12 Jul 2017 10:00:00 GMT Photovoltaics: What Happens to Excess Energy? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/photovoltaics-what-happens-to-excess-energy.aspx In a solar cell, the absorption of photons with energy exceeding the absorption threshold results in excess energy. But how is this excess energy dissipated? Researchers from IRAMIS answered this question by developing concepts that could facilitate the description of other semiconductors. Physics ; Materials ; Solar energy ; Simulation & modelling general public ; Journalists ; Researchers Iramis Scientific result Mon, 10 Apr 2017 10:00:00 GMT Toward a Better Understanding of Ionic Conductivity in the Electrolyte https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/toward-a-better-understanding-of-ionic-conductivity-in-the-electrolyte.aspx An international collaboration led by institutes INAC and LITEN shows that lithium ions interact with the electrolyte in very different ways depending on the anion content. This is an essential finding for improving the performance of lithium-ion batteries. Energies ; Chemistry general public ; Journalists ; Researchers Inac Scientific result Thu, 09 Feb 2017 11:00:00 GMT WEST’s First Plasma https://www.cea.fr/drf/english/Pages/News/Institutional-news/2017/west-first-plasma.aspx The WEST tokamak produced its first plasma on December 14, 2016 and is now preparing to test key components for ITER. Energies ; Nuclear reactors general public ; Journalists ; Researchers IRFM Scientific result ; Highlight Thu, 05 Jan 2017 11:00:00 GMT Underwater marine life: coupling photosynthesis and respiration https://www.cea.fr/drf/english/Pages/News/Scientific-results/2015/Underwater-marine-life-coupling-photosynthesis-and-respiration.aspx Researchers from the CEA-IRTSV and their partners have revised our understanding of the cellular mechanisms behind the impressive photosynthetic capacity of the unicellular marine organisms known as diatoms. They discovered an unexpected interaction between photosynthesis and respiration. Photosynthesis BIG Scientific result Thu, 16 Jul 2015 10:00:00 GMT The mechanism that changes the color of cyanobacteria https://www.cea.fr/drf/english/Pages/News/Scientific-results/2015/mechanism-that-changes-color-of-cyanobacteria.aspx Cyanobacteria, which use light as a source of energy during photosynthesis, also need to know how to protect themselves from it. Researchers have uncovered a unique mechanism of photoprotection that opens new perspectives for synthetic biology and the production of biomolecules of industrial interest. Photosynthesis ; Stress response IBITECS Scientific result Fri, 26 Jun 2015 10:00:00 GMT Formate dehydrogenase: a delicate mechanism has been elucidated https://www.cea.fr/drf/english/Pages/News/Scientific-results/2015/Formate-dehydrogenase.aspx Formate dehydrogenases are bacterial enzymes that represent a hope in giving value to CO2 as a renewable energy vector. A team from the CEA-IBEB has elucidated a key step in their maturation. Structural biology ; Bioenergy ; Biohydrogen LBC Scientific result Wed, 04 Feb 2015 11:00:00 GMT Enzyme cocktails for degrading plant biomass https://www.cea.fr/drf/english/Pages/News/Scientific-results/2014/Enzyme-cocktails-for-degrading-plant-biomass.aspx Researchers from the CEA-Genoscope are characterizing the metabolism of polysaccharides in Clostridium phytofermentans, a bacterium capable of transforming plant debris into biofuel. Transcriptomics ; Biomass Fontenay-aux-Roses Scientific result Thu, 13 Nov 2014 11:00:00 GMT Hydrogen technologies: new process uses enzymes as catalysts https://www.cea.fr/drf/english/Pages/News/Scientific-results/2013/Hydrogen-technologies-new-process-uses-enzymes-as-catalysts.aspx For the first time, a research team from the CEA , Collège de France, CNRS and Université Joseph Fourier in Grenoble has developed an efficient process for in vitro activation of an enzyme, hydrogenase, which is found in microorganisms that use hydrogen as a source of energy. Bio-inspired catalysis ; Biohydrogen Inac Scientific result Wed, 26 Jun 2013 10:00:00 GMT Research agreement with Canada: production of microalgae while decontaminating industrial sites https://www.cea.fr/drf/english/Pages/News/Scientific-results/2013/Research-agreement-with-Canada-production-of-microalgae-while-decontaminating-industrial-sites.aspx French Prime Minister Jean-Marc Ayrault announced the signature of an agreement for a collaboration between the CEA’s Department of Life Sciences and Canada’s National Research Council (NRC). This partnership aims to explore the potential in using gas and industrial wastes for the production of microalgae. Microalgae ; Bioremediation ; Recovery of CO2 Fontenay-aux-Roses European & international partnerships Fri, 15 Mar 2013 11:00:00 GMT Living fuel cells https://www.cea.fr/drf/english/Pages/News/Scientific-results/2013/Living-fuel-cells.aspx Bacteria contain astonishing enzymes that could inspire scientists in the fabrication of fuel cells. Such is the case for researchers from the IBS, who have just determined the crystallographic structure and mechanism of action for an enzyme from Escherichia coli. Structural biology ; Bio-inspired catalysis IBS Scientific result Thu, 28 Feb 2013 11:00:00 GMT