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Bio-inspired molybdenum sulfide catalyst offers low-cost and efficient photo-electrochemical water splitting to produce hydrogen

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The optimized photo-electrochemical water splitting device uses light absorbers made of silicon arranged in closely packed pillars, dotted with tiny clusters of the new molybdenum sulfide catalyst. An alternative, clean method is to make hydrogen fuel from sunlight and water via a photo-electrochemical (PEC, or water-splitting) process.

Water 332
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PNNL study uncovers role of water in forming impurity in bio-oil upgrading; insight into fundamentals of biofuel catalysis

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In working to elucidate the chemistry of hydrodeoxygenation (HDO) for the catalytic upgrading of pyrolytic bio-oil to fuel-grade products, researchers at Pacific Northwest National Laboratory (PNNL) have discovered that water in the conversion process helps form an impurity which, in turn, slows down key chemical reactions.

Water 210
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Haldor Topsoe to build large-scale SOEC electrolyzer manufacturing facility to meet customer needs for green hydrogen

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With efficiencies above 90%, Topsoe’s proprietary SOEC electrolyzers offer superior performance in electrolysis of water into hydrogen—e.g., Solid oxide electrolysis cell (SOEC) technology is attractive because of unrivaled conversion efficiencies—a result of favorable thermodynamics and kinetics at higher operating temperatures.

Hydrogen 476
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New photochemical diode artificial photosynthesis system doubles efficiency of solar water splitting

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Researchers in Canada have demonstrated a new photochemical diode artificial photosynthesis system that can enable efficient, unassisted overall pure water splitting without using any sacrificial reagent. overall water splitting reaction. These free charges split water molecules into hydrogen and oxygen. … in neutral (pH?~?7.0)

Water 186
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Columbia University engineers make breakthrough in understanding electroreduction of CO2 for conversion to electrofuels

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Recent research in electrocatalytic CO 2 conversion points the way to using CO 2 as a feedstock and renewable electricity as an energy supply for the synthesis of different types of fuel and value-added chemicals such as ethylene, ethanol, and propane.

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Argonne-led study insights help to reduce degradation in fuel cells and extend lifetime

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Through these processes, fuel cells produce electricity to power electric motors in vehicles and other applications, emitting water as the only by-product. —Vojislav Stamenkovic, a senior scientist and group leader for the Energy Conversion and Storage group in Argonne’s Materials Science Division (MSD).

Insight 199
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New method of ammonia pretreatment for biomass increases saccharification rates up to 5-fold; prospects for more cost-effective biofuels and chemicals production

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This, in turn, significantly reduces the tightness of the cellulose network and leaves it more vulnerable to conversion into sugar by fungi-derived cellulolytic enzymes. The study also provides fundamental insights into the nature of cellulose recalcitrance. Most thermochemical pretreatments fall within the first category (e.g.,

Hydrogen 236