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Metal-free photocatalysts for hydrogen evolution

Chemical Society Reviews, 2020
This article provides a comprehensive review of the latest progress, challenges and recommended future research related to metal-free photocatalysts for hydrogen productionviawater-splitting.
Mohammad Ziaur Rahman   +2 more
openaire   +2 more sources

Recent Advances in Carbon‐Supported Noble‐Metal Electrocatalysts for Hydrogen Evolution Reaction: Syntheses, Structures, and Properties

Advanced Energy Materials, 2022
The electrochemical hydrogen evolution reaction (HER) that converts renewable electricity into storable hydrogen, a sustainable and clean energy carrier, provides a promising method to mitigate the energy crisis and environmental pollution.
Yuhang Liu   +9 more
semanticscholar   +1 more source

Photosynthetic oxygen evolution from hydrogen peroxide

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1978
A study was made of the interactions of flash-illuminated chloroplasts with hydrogen peroxide. We conclude: 1. The oxygen precursor system can be reduced beyond the S0 state to an S-1 state, which can be oxidized to S0 by a single flash. 2. In the dark, a two-electron donation by H2O2 takes place which reduces S2 to S0 and S1 to S-1. 3.
B, Velthuys, B, Kok
openaire   +2 more sources

Light-dependent hydrogen evolution by Scenedesmus

Planta, 1969
The effect of glucose and the uncoupler Cl-CCP upon hydrogen production was studied in adapted cells of Scenedesmus obliquus D3. Cl-CCP at 10(-5)M concentration completely inhibited the evolution of H2 in the dark and increased the apparent rate of H2 evolution in the light.
H, Kaltwasser, T S, Stuart, H, Gaffron
openaire   +2 more sources

Hydrogen Evolution Reaction from EDTA Solutions

Materials Science Forum, 2002
An attempt was made to investigate the mechanism and kinetics of hydrogen evolution reaction on zinc and platinum wire electrodes from solutions containing ethylene diamine tetraacetic acid (EDTA). EDTA is a tetra-basic acid whose dissociation covers a wide range of pH, with a betaine structure in solutions.
Stanković, Slavka   +5 more
openaire   +2 more sources

Hydrogen evolution by photobleached Anabaena cylindrica

Planta, 1981
We have studied the evolution of hydrogen by photobleached filaments of the heterocystous bluegreen alga Anabaena cylindrica. The photobleached cells became orange-yellow due to the heavy accumulation of carotenoids. We found that the yellow filaments produced much larger amounts of hydrogen than the normal, green ones, while the nitrogenase activity ...
I, Laczkó, K, Barabás
openaire   +2 more sources

Hydrogen evolution: Guiding principles

Nature Energy, 2016
Lower-cost alternatives to platinum electrocatalysts are being explored for the sustainable production of hydrogen, but often trial-and-error approaches are used for their development. Now, principles are elucidated that suggest pathways to rationally design efficient metal-free electrocatalysts based on doped graphene.
openaire   +1 more source

Semisynthetic and Biomolecular Hydrogen Evolution Catalysts

Inorganic Chemistry, 2015
There has been great interest in the development of stable, inexpensive, efficient catalysts capable of reducing aqueous protons to hydrogen (H2), an alternative to fossil fuels. While synthetic H2 evolution catalysts have been in development for decades, recently there has been great progress in engineering biomolecular catalysts and assemblies of ...
Banu, Kandemir   +3 more
openaire   +2 more sources

The Photosynthetic Unit of Hydrogen Evolution

Science, 1977
A study of the absolute photoproduction of hydrogen by autotrophically grown Chlorella vulgaris with single-turnover flashes of light indicates that (i) while the Emerson and Arnold photosynthetic unit has the value chlorophyll : oxygen ≈ 1700 : 1, the hydrogen analog of this unit has the value chlorophyll ...
openaire   +2 more sources

Defect Evolution in Hydrogen Implanted Silicon

1996
Defect evolution in hydrogen implanted ...
Acheron, C.E.   +3 more
openaire   +2 more sources

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