Journal ArticleDOI
A metal-free polymeric photocatalyst for hydrogen production from water under visible light
Xinchen Wang,Kazuhiko Maeda,Arne Thomas,Kazuhiro Takanabe,Gang Xin,Johan M. Carlsson,Kazunari Domen,Markus Antonietti +7 more
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TLDR
It is shown that an abundant material, polymeric carbon nitride, can produce hydrogen from water under visible-light irradiation in the presence of a sacrificial donor.Abstract:
The production of hydrogen from water using a catalyst and solar energy is an ideal future energy source, independent of fossil reserves. For an economical use of water and solar energy, catalysts that are sufficiently efficient, stable, inexpensive and capable of harvesting light are required. Here, we show that an abundant material, polymeric carbon nitride, can produce hydrogen from water under visible-light irradiation in the presence of a sacrificial donor. Contrary to other conducting polymer semiconductors, carbon nitride is chemically and thermally stable and does not rely on complicated device manufacturing. The results represent an important first step towards photosynthesis in general where artificial conjugated polymer semiconductors can be used as energy transducers.read more
Citations
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Carbon nitride nanosheets for photocatalytic hydrogen evolution: remarkably enhanced activity by dye sensitization
TL;DR: In this paper, a dye sensitization mechanism between ErB and carbon nitride nanosheets was proposed to achieve high H2 evolution rate of 162.5 μmol h−1.
Journal ArticleDOI
Photocatalytic hydrogen evolution through fully conjugated poly(azomethine) networks
Matthias Georg Schwab,Manuel Hamburger,Xinliang Feng,Jie Shu,Hans Wolfgang Spiess,Xinchen Wang,Markus Antonietti,Klaus Müllen +7 more
TL;DR: Three-dimensional conjugated poly(azomethine) networks were found to be promising candidates for applications in photocatalytic water splitting and the catalytic performance of these materials was correlated to the molecular composition and the optoelectronic properties of the samples.
Journal ArticleDOI
Photocatalytic nanomaterials for solar-driven bacterial inactivation: recent progress and challenges
TL;DR: An overview of the current research activities that focus on the development of nanostructured photocatalysts for water disinfection, including 0D, 1D and 2D (low-dimensional) nanomaterials, can be found in this paper.
Journal ArticleDOI
A comparative perspective of electrochemical and photochemical approaches for catalytic H2O2 production
TL;DR: This review compares and contrast the two distinct yet inherently closely linked catalytic processes, before detailing recent advances in the design, preparation, and applications of different H2O2 catalyst systems from the viewpoint of electrochemical and photochemical approaches.
Journal ArticleDOI
Unveiling Charge-Separation Dynamics in CdS/Metal–Organic Framework Composites for Enhanced Photocatalysis
TL;DR: In this paper, CdS-decorated metal-organic framework (MOF) composites were synthesized and exhibited high H2 production activity from photocatalytic water splitting.
References
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First principles methods using CASTEP
Stewart J. Clark,Matthew D. Segall,Chris J. Pickard,P. J. Hasnip,Matt Probert,Keith Refson,Mike C. Payne +6 more
TL;DR: The CASTEP program as mentioned in this paper is a computer program for first principles electro-Nic structure calculations, and some of its features and capabilities are described and near-future development plans outlined.
Journal ArticleDOI
Photocatalyst releasing hydrogen from water
Kazuhiko Maeda,Kentaro Teramura,Daling Lu,Tsuyoshi Takata,Nobuo Saito,Yasunobu Inoue,Kazunari Domen +6 more
TL;DR: An advance in the catalysis of the overall splitting of water under visible light is described: the new catalyst is a solid solution of gallium and zinc nitrogen oxide, modified with nanoparticles of a mixed oxide of rhodium and chromium, which functions as a promising and efficient photocatalyst in promoting the evolution of hydrogen gas.
Journal ArticleDOI
A Monolithic Photovoltaic-Photoelectrochemical Device for Hydrogen Production via Water Splitting
O. Khaselev,John A. Turner +1 more
TL;DR: Direct water electrolysis was achieved with a novel, integrated, monolithic photoelectrochemical-photovoltaic design that splits water directly upon illumination; light is the only energy input.
Journal ArticleDOI
Composition, structure, and stability of RuO 2 ( 110 ) as a function of oxygen pressure
TL;DR: In this article, the Gibbs free energy was calculated to determine the lowest energy structure of a transition metal oxide surface in thermodynamic equilibrium with an oxygen-rich environment, and it was shown that the commonly assumed stoichiometric termination is only favorable at low oxygen chemical potentials, i.e., low pressures and/or high temperatures.
Journal ArticleDOI
New Non-Oxide Photocatalysts Designed for Overall Water Splitting under Visible Light
TL;DR: In this article, the development of visible-light-driven photocatalysts focusing on the refinement of non-oxide-type photocatalyst such as (oxy)nitrides and oxysulfides is discussed.
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