Mesoporous Iron Sulfide for Highly Efficient Electrocatalytic Hydrogen Evolution
Ran Miao,Biswanath Dutta,Sanjubala Sahoo,Junkai He,Wei Zhong,Shaylin A. Cetegen,Ting Jiang,S. Pamir Alpay,Steven L. Suib +8 more
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TLDR
The theoretical calculations indicate that the excellent catalytic activity of mesoporous FeS2 is attributed to the exposed facets, which might be a promising alternative to the Pt-based electrocatalysts for water splitting.Abstract:
We report a facile synthetic protocol to prepare mesoporous FeS2 without the aid of hard template as an electrocatalyst for the hydrogen evolution reaction (HER). The mesoporous FeS2 materials with high surface area were successfully prepared by a sol–gel method following a sulfurization treatment in an H2S atmosphere. A remarkable HER catalytic performance was achieved with a low overpotential of 96 mV at a current density of 10 mA·cm–2 and a Tafel slope of 78 mV per decade under alkaline conditions (pH 13). The theoretical calculations indicate that the excellent catalytic activity of mesoporous FeS2 is attributed to the exposed (210) facets. The mesoporous FeS2 material might be a promising alternative to the Pt-based electrocatalysts for water splitting.read more
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Nanoarchitectonics for Transition-Metal-Sulfide-Based Electrocatalysts for Water Splitting.
Yanna Guo,Yanna Guo,Teahoon Park,Jin Woo Yi,Joel Henzie,Jeonghun Kim,Zhongli Wang,Bo Jiang,Yoshio Bando,Yoshiyuki Sugahara,Jing Tang,Yusuke Yamauchi +11 more
TL;DR: Insightful insights gathered in the process of studying TMS are provided, and valuable guidelines for engineering other kinds of nanomaterial catalysts for energy conversion and storage technologies are described.
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Recent advances in metal sulfides: from controlled fabrication to electrocatalytic, photocatalytic and photoelectrochemical water splitting and beyond
Sundaram Chandrasekaran,Lei Yao,Libo Deng,Christopher R. Bowen,Yan Zhang,Sanming Chen,Zhiqun Lin,Feng Peng,Peixin Zhang +8 more
TL;DR: A variety of strategies such as structural tuning, composition control, doping, hybrid structures, heterostructures, defect control, temperature effects and porosity effects on metal sulfide nanocrystals are discussed and how they are exploited to enhance performance and develop future energy materials.
Journal ArticleDOI
Clean and Affordable Hydrogen Fuel from Alkaline Water Splitting: Past, Recent Progress, and Future Prospects.
TL;DR: In this article, the historic development of water electrolysis is overviewed, and several critical electrochemical parameters are discussed, particularly focusing on catalyst synthesis, activity and stability challenges, performance improvement, and industry relevant developments.
Journal ArticleDOI
Single Atoms and Clusters Based Nanomaterials for Hydrogen Evolution, Oxygen Evolution Reactions, and Full Water Splitting
Siraj Sultan,Jitendra N. Tiwari,Aditya Narayan Singh,Shynggys Zhumagali,Miran Ha,Chang Woo Myung,Pandiarajan Thangavel,Kwang S. Kim +7 more
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Doping-induced structural phase transition in cobalt diselenide enables enhanced hydrogen evolution catalysis.
Ya-Rong Zheng,Ping Wu,Min-Rui Gao,Xiao-Long Zhang,Fei-Yue Gao,Huanxin Ju,Rui Wu,Qiang Gao,Rui You,Weixin Huang,Shoujie Liu,Shanwei Hu,Junfa Zhu,Zhenyu Li,Shu-Hong Yu +14 more
TL;DR: A doping strategy to induce a phase transition in cobalt selenide and boost H2-evolution performance is presented, with striking catalysis performance can be attributed to the favorable electronic structure and local coordination environment created by this doping-induced structural phase transition strategy.
References
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Benchmarking Hydrogen Evolving Reaction and Oxygen Evolving Reaction Electrocatalysts for Solar Water Splitting Devices
Charles C. L. McCrory,Suho Jung,Ivonne M. Ferrer,Shawn Chatman,Jonas C. Peters,Thomas F. Jaramillo +5 more
TL;DR: A standard protocol is used as a primary screen for evaluating the activity, short-term (2 h) stability, and electrochemically active surface area (ECSA) of 18 and 26 electrocatalysts for the hydrogen evolution reaction (HER and OER) under conditions relevant to an integrated solar water-splitting device in aqueous acidic or alkaline solution.
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In situ cobalt-cobalt oxide/N-doped carbon hybrids as superior bifunctional electrocatalysts for hydrogen and oxygen evolution.
TL;DR: Inspired by the superiority of carbon conductivity, the propitious H atom binding energy of metallic cobalt, and better OER activity of cobalt oxide, cobalt-cobalt oxide/N-doped carbon hybrids (CoOx@CN) composed of Co(0), CoO, Co3O4 applied to HER and OER are synthesized.
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Interfacial processes involving electrocatalytic evolution and oxidation of H2, and the role of chemisorbed H
Brian E. Conway,B.V. Tilak +1 more
TL;DR: In this paper, states of chemisorbed H that can be involved in the mechanism of the cathodic H2 evolution reaction (HER) at metals, specially Pt, and the reverse oxidation reaction (HOR), are examined.
Journal ArticleDOI
High-index faceted Ni3S2 nanosheet arrays as highly active and ultrastable electrocatalysts for water splitting.
Liang Liang Feng,Guangtao Yu,Yuanyuan Wu,Guo Dong Li,Hui Li,Yuanhui Sun,Tewodros Asefa,Wei Chen,Xiaoxin Zou +8 more
TL;DR: Experimental results and theoretical calculations indicate that Ni3S2/NF's excellent catalytic activity is mainly due to the synergistic catalytic effects produced in it by its nanosheet arrays and exposed {2̅10} high-index facets.
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Phase separation in confined systems
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