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NREL, Berkeley Lab propose efficiency and stability best-practices for solar water-splitting

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Photoelectrochemical (PEC) water-splitting, which relies on sunlight to split water into oxygen and hydrogen, stands out as potentially one of the most sustainable routes to clean energy. PEC water-splitting was first noted in scientific publications in 1972. Photoelectrodes have demonstrated efficiencies from 10% to 20%.

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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)

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Cambridge team demonstrates light-driven photoreforming of unprocessed biomass to H2 at room temperature

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A team of scientists at the University of Cambridge has reported the light-driven photoreforming of cellulose, hemicellulose and lignin to H 2 using semiconducting cadmium sulfide quantum dots in alkaline aqueous solution. CdS is an inexpensive, visible-light-absorbing photocatalyst with a bulk electronic bandgap of around 2.4

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New catalysts enable photocatalytic version of water gas shift reaction for H2 production

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Politécnica de Valencia (Spain) have found that noble metal nanoparticles supported on titanium dioxide or cerium dioxide can catalyze the industrially important water gas shift (WGS) reaction for hydrogen production at ambient temperatures using visible light irradiation. —Sastre et al.

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New Efficient Iron Catalyst for Water Oxidation

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Researchers at Carnegie Mellon University have developed a new catalyst—iron-centered tetraamido macrocyclic ligand (Fe-TAML)—that efficiently catalyzes water oxidation. Water oxidation is the second of two requisite half-reactions in the photolysis of water, the other being the reduction of protons to dihydrogen. At pH 0.7,

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Acura unveils Precision Concept EV SUV

Teslarati

The vehicle is looking to spotlight Acura’s new water-centric design language and upcoming EV lineup. The vehicle features mirrorless rear view cameras, a full light up front grill, no visible door handles, and a flowing design language that sweeps from the front of the SUV to the rear. What do you think of the article?

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NREL researchers capture excess photon energy to produce solar fuels; higher efficiency water-splitting for H2

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The advancement could significantly boost the production of hydrogen from sunlight by using the cell to split water at a higher efficiency and lower cost than current photoelectrochemical approaches. Light is absorbed at the photoanode within the QD layer producing free electrons and holes. Marshall, John A. Turner & Matthew C.

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