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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Facile fabrication of magnetically separable graphitic carbon nitride photocatalysts with enhanced photocatalytic activity under visible light
TL;DR: In this paper, the authors illustrate the design and fabrication of magnetically separable polymeric carbon nitride composite photocatalysts, i.e. Fe2O3/g-C3N4 composite catalysts, a novel type of visible light driven photocatalyst with a cost effective recovery manner.
Journal ArticleDOI
Condensed and low-defected graphitic carbon nitride with enhanced photocatalytic hydrogen evolution under visible light irradiation
TL;DR: In this article, a low-defected graphitic carbon nitride (denoted as CNa) was synthesized from a simple one-step thermal polymerization in ammonia to promote structural evolution during condensation in ammonia and catalytic performance for H2 evolution for the defected-C3N4 was well studied.
Journal ArticleDOI
Recyclable Nanoscale Zero Valent Iron Doped g-C3N4/MoS2 for Efficient Photocatalysis of RhB and Cr(VI) Driven by Visible Light
TL;DR: In this article, a ternary hybrid structure material of a zero valent iron (Fe0) doped g-C3N4/MoS2 layered structure (GCNFM) was synthesized by a facile strategy.
Journal ArticleDOI
In-situ construction of coral-like porous P-doped g-C3N4 tubes with hybrid 1D/2D architecture and high efficient photocatalytic hydrogen evolution
TL;DR: In this article, a simple self-assembly synthesis of coral-like 3D porous P-doped g-C3N4 tubes (PCNT) by the combination of pyrolysis and freeze-drying method was reported.
Journal ArticleDOI
Two-dimensional g-C3N4: an ideal platform for examining facet selectivity of metal co-catalysts in photocatalysis
TL;DR: Two-dimensional g-C3N4 nanosheets with few-layer thickness, ensuring equivalent charge migrations to various Pd facets, provide an ideal model system for reliably examining the facet selectivity of Pd co-catalysts.
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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