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Revealing the Contribution of Individual Factors to Hydrogen Evolution Reaction Catalytic Activity

Zhou, Yu (författare)
Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, USA; Energy Sciences Institute, Yale West Campus, West Haven, CT, USA,Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA
Silva, Jose Luis (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Woods, John M. (författare)
Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, USA; Energy Sciences Institute, Yale West Campus, West Haven, CT, USA,Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA
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Pondick, Joshua V. (författare)
Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, USA; Energy Sciences Institute, Yale West Campus, West Haven, CT, USA,Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA
Feng, Qingliang (författare)
Northwestern Polytech University, CHN,Northwestern Polytech Univ, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Shaanxi, Peoples R China,Shaanxi Key Laboratory of Optical Information Technology, Northwestern Polytechnical University, Xi'an, China
Liang, Zhixiu (författare)
Chemistry Department, Brookhaven National Laboratory, Upton, NY, USA,Brookhaven Natl Lab, Chem Dept, Upton, NY 11973 USA
Liu, Wen (författare)
Energy Sciences Institute, Yale West Campus, West Haven, CT, USA Department of Chemistry, Yale University, New Haven, CT, USA,Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA;Yale Univ, Dept Chem, 225 Prospect St, New Haven, CT 06511 USA
Lin, Li (författare)
College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China,Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Deng, Bingchen (författare)
Department of Electrical Engineering, Yale University, New Haven, CT, USA,Yale Univ, Dept Elect Engn, New Haven, CT 06511 USA
Brena, Barbara (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Xia, Fengnian (författare)
Department of Electrical Engineering, Yale University, New Haven, CT, USA,Yale Univ, Dept Elect Engn, New Haven, CT 06511 USA
Peng, Hailin (författare)
College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China,Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Liu, Zhongfan (författare)
College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China,Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Wang, Hailiang (författare)
Energy Sciences Institute, Yale West Campus, West Haven, CT, USA Department of Chemistry, Yale University, New Haven, CT, USA,Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA;Yale Univ, Dept Chem, 225 Prospect St, New Haven, CT 06511 USA
Araujo, Carlos Moyses (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Cha, Judy J. (författare)
Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT, USA; Energy Sciences Institute, Yale West Campus, West Haven, CT, USA,Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA
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 (creator_code:org_t)
2018-03-24
2018
Engelska.
Ingår i: Advanced Materials. - : Wiley-VCH Verlagsgesellschaft. - 0935-9648 .- 1521-4095. ; 30:18
Relaterad länk:
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • For the electrochemical hydrogen evolution reaction (HER), the electrical properties of catalysts can play an important role in influencing the overall catalytic activity. This is particularly important for semiconducting HER catalysts such as MoS2, which has been extensively studied over the last decade. Herein, on-chip microreactors on two model catalysts, semiconducting MoS2 and semimetallic WTe2, are employed to extract the effects of individual factors and study their relations with the HER catalytic activity. It is shown that electron injection at the catalyst/current collector interface and intralayer and interlayer charge transport within the catalyst can be more important than thermodynamic energy considerations. For WTe2, the site-dependent activities and the relations of the pure thermodynamics to the overall activity are measured and established, as the microreactors allow precise measurements of the type and area of the catalytic sites. The approach presents opportunities to study electrochemical reactions systematically to help establish rational design principles for future electrocatalysts.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)
NATURVETENSKAP  -- Kemi -- Organisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Organic Chemistry (hsv//eng)

Nyckelord

2D TMD materials
electrochemical microreactors
hydrogen evolution reaction
individual factors
overall performance
Chemistry - Physical Chemistry
Kemi - fysikalisk kemi

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