Journal ArticleDOI
Photo-illuminated diamond as a solid-state source of solvated electrons in water for nitrogen reduction
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TLDR
It is demonstrated that illuminated hydrogen-terminated diamond yields facile electron emission into water, thus inducing reduction of N₂ to NH₃ at ambient temperature and pressure.Abstract:
The photocatalytic reduction of N₂ to NH₃ is typically hampered by poor binding of N₂ to catalytic materials and by the very high energy of the intermediates involved in this reaction. Solvated electrons directly introduced into the reactant solution can provide an alternative pathway to overcome such limitations. Here we demonstrate that illuminated hydrogen-terminated diamond yields facile electron emission into water, thus inducing reduction of N₂ to NH₃ at ambient temperature and pressure. Transient absorption measurements at 632 nm reveal the presence of solvated electrons adjacent to the diamond after photoexcitation. Experiments using inexpensive synthetic diamond samples and diamond powder show that photocatalytic activity is strongly dependent on the surface termination and correlates with the production of solvated electrons. The use of diamond to eject electrons into a reactant liquid represents a new paradigm for photocatalytic reduction, bringing electrons directly to reactants without requiring molecular adsorption to the surface.read more
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Journal ArticleDOI
Solar Water Splitting and Nitrogen Fixation with Layered Bismuth Oxyhalides.
TL;DR: The layered structures of bismuth oxyhalides can stimulate an internal electric field that is capable of efficiently separating electrons and holes after their formation and of precisely channeling their migration from the bulk to the surface along the different directions, thus enabling more electrons to reach the surface for water splitting and nitrogen fixation.
Journal ArticleDOI
Electrochemical reduction of nitrate to ammonia via direct eight-electron transfer using a copper–molecular solid catalyst
Gao-Feng Chen,Gao-Feng Chen,Yifei Yuan,Haifeng Jiang,Ren Shiyu,Liang-Xin Ding,Lu Ma,Tianpin Wu,Jun Lu,Haihui Wang +9 more
TL;DR: In this paper, a copper-incorporated crystalline 3,4,9,10-perylenetetetracarboxylic dianhydride was used to synthesize ammonia from nitrate ions.
Journal ArticleDOI
Atomically Dispersed Molybdenum Catalysts for Efficient Ambient Nitrogen Fixation
Lili Han,Lili Han,Xijun Liu,Jinping Chen,Ruoqian Lin,Haoxuan Liu,Fang Lü,Seong-Min Bak,Zhixiu Liang,Shunzheng Zhao,Eli Stavitski,Jun Luo,Radoslav R. Adzic,Huolin L. Xin +13 more
TL;DR: Single Mo atoms anchored to nitrogen-doped porous carbon as a cost-effective catalyst for the NRR achieves a high NH3 yield rate and a high Faradaic efficiency, considerably higher compared to previously reported non-precious-metal electrocatalysts.
Journal ArticleDOI
Layered‐Double‐Hydroxide Nanosheets as Efficient Visible‐Light‐Driven Photocatalysts for Dinitrogen Fixation
Yufei Zhao,Yunxuan Zhao,Yunxuan Zhao,Geoffrey I. N. Waterhouse,Lirong Zheng,Xingzong Cao,Fei Teng,Li-Zhu Wu,Chen-Ho Tung,Dermot O'Hare,Tierui Zhang +10 more
TL;DR: This study demonstrates that ultrathin layered-double-hydroxide (LDH) photocatalysts, in particular CuCr-LDH nanosheets, possess remarkable photocatallytic activity for the photoreduction of N2 to NH3 in water at 25 °C under visible-light irradiation.
Journal ArticleDOI
Facile Ammonia Synthesis from Electrocatalytic N2 Reduction under Ambient Conditions on N-Doped Porous Carbon
Yanming Liu,Yan Su,Xie Quan,Xinfei Fan,Shuo Chen,Hongtao Yu,Huimin Zhao,Yaobin Zhang,Jijun Zhao +8 more
TL;DR: In this paper, N-doped porous carbon (NPC) is reported as a cost-effective electrocatalyst for ammonia synthesis from electrocatalytic N2 reduction under ambient conditions, where its N content and species were tuned to enhance N2 chemical adsorption and N≡N cleavage.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
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Journal ArticleDOI
Catalytic Reduction of Dinitrogen to Ammonia at a Single Molybdenum Center
TL;DR: In this paper, the authors explored the catalytic reduction of dinitrogen by molybdenum complexes that contain the [HIPTN3N]3- ligand.
Journal ArticleDOI
Quantum photoyield of diamond(111)—A stable negative-affinity emitter
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Proceedings ArticleDOI
The HITRAN molecular spectroscopic database and HAWKS (HITRAN atmospheric workstation)
Laurence S. Rothman,Curtis P. Rinsland,Aaron Goldman,Steven T. Massie,David P. Edwards,Jean-Marie Flaud,Agnes Perrin,Claude Camy-Peyret,V. Dana,Y.-Y. Mandin,J. Schroeder,Robert R. Gamache,R. B. Wattson,Kouichi Yoshino,Kelly Chance,Kenneth W. Jucks,Linda R. Brown,V. Nemtchinov,Prasad Varanasi +18 more
TL;DR: The data and features that have been added or replaced since the previous edition of HITRAN are described and instances of critical data that are forthcoming are cited.