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Journal ArticleDOI

Photocatalytic reduction of dinitrogen to ammonia over noble-metal-loaded TiO2

TLDR
The photocatalytic reduction of dinitrogen to ammonia is influenced by the nature and amount of metal loading on TiO2 and the optimum metal content varies depending on the nature of the metal as mentioned in this paper.
Abstract
The photocatalytic reduction of dinitrogen to ammonia is influenced by the nature and amount of metal loading on TiO2. The optimum metal content varies depending on the nature of the metal. A correlation between the ammonia yield and the intermediary MH bond strength is established (low bond strength gives rise to low ammonia yield).

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Citations
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Journal ArticleDOI

Mechanism of N2 reduction to NH3 by aqueous solvated electrons.

TL;DR: A combination of experimental and computational approaches are used to elucidate the detailed molecular-level mechanistic pathway from nitrogen to ammonia, implicate a hydrogen atom addition mechanism at early reduction steps and sequential protonation/direct reduction by a solvated electron at later steps, thus involving both direct and indirect reactions with solvations.
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Large-scale production of graphitic carbon nitride with outstanding nitrogen photofixation ability via a convenient microwave treatment

TL;DR: In this paper, a convenient microwave treatment for synthesizing graphitic carbon nitride (g-C3N4) with outstanding nitrogen photofixation ability under visible light is reported.
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Electron-driven heterogeneous catalytic synthesis of ammonia: Current states and perspective

TL;DR: The most state-of-the-art technologies used to produce ammonia via electrocatalysis and photocatalysis by comparing different electrolyte systems and electrocatalysts as well as discussing issues with these methods and possible solutions as discussed by the authors.
Journal ArticleDOI

Photocatalytic NH3 versus H2 evolution over g-C3N4/CsxWO3: O2 and methanol tipping the scale

TL;DR: In this article, the authors used CxWO3 nanorods to sensitize the single layer g-C3N4, where full spectrum light harvesting excited electrons to drive the photocatalytic reduction of N2 into NH3.
Journal ArticleDOI

Heterojunction photocatalysts for artificial nitrogen fixation: fundamentals, latest advances and future perspectives.

TL;DR: In this article, a wide spectrum of recently developed heter-structured photocatalysts for nitrogen fixation to ammonia are evaluated and the fundamentals of solar-to-ammonia conversion, basic principles of various heterojunction photocatalyst and modification strategies are systematically reviewed.
References
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Journal ArticleDOI

Work function, electronegativity, and electrochemical behaviour of metals: III. Electrolytic hydrogen evolution in acid solutions

TL;DR: In this paper, the dependence of the exchange current for the electrolytic evolution of hydrogen on metals (i 0,H ) on the work function is analyzed on the basic of a new list of polycrystalline surfaces.
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Photolysis of water and photoreduction of nitrogen on titanium dioxide

TL;DR: The photolysis of chemisorbed water on incompletely outgassed TiO/sub 2/ powder yields H 2 and O 2 in the molar ratio of 2 : 1 if conducted under argon in the presence of molecular nitrogen as mentioned in this paper.
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Improvement of photoelectrochemical hydrogen generation by surface modification of p-type silicon semiconductor photocathodes

TL;DR: In this article, the improvement of H/sub 2/ evolution from two different types of catalytic p-type photocathode surfaces has been examined, and a comparison of the naked p-Si, the simply platinized, and the (PQ/sup 2 +//sup ///sup +/.)sub n/.nPt(0))/sub surf/ system compared to the same surface directly platinised confirm an important difference in the mechanism of H /sub 2 / evolution catalysis for the two surface catalyst systems.
Journal ArticleDOI

Heterogeneous photocatalytic production of hydrogen and methane from ethanol and water

TL;DR: The quantum yield of hydrogen production was increased greatly by supporting metals or metal complexes on the TiO2 surface, amounting to 38% for a Pt-TiO2 photocatalyst.
Journal ArticleDOI

Hydrogen-evolving semiconductor photocathodes: nature of the junction and function of the platinum group metal catalyst

TL;DR: In this paper, the Fermi level difference of p-InP and H/sup +//H/sub 2/ (0.9 +/- 0.2 eV) was shown to be a function of metal work functions.
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