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Sökning: id:"swepub:oai:DiVA.org:kau-80977" > Unveiling the Inter...

Unveiling the Interfacial Effects for Enhanced Hydrogen Evolution Reaction on MoS2/WTe2 Hybrid Structures

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
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
Silva, Jose Luis (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
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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
Hynek, David 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
Matthews, Grace (författare)
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, USA,North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
Shen, Xin (författare)
Energy Sciences Institute, Yale West Campus, West Haven, CT, USA Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA,Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA;Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06511 USA
Feng, Qingliang (författare)
Northwestern Polytech University, CHN,Northwestern Polytech Univ, Sch Sci, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Shaanxi, Peoples R China,Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, P. R. China
Liu, Wen (författare)
Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA,Department of Chemistry, Yale University, New Haven, CT, USA
Lu, Zhixing (författare)
Yale University, USA ;Tsinghua University, CHN,Yale Univ, Dept Chem, 225 Prospect St, New Haven, CT 06511 USA;Tsinghua Univ, Dept Chem, Beijing 10084, Peoples R China,Department of Chemistry, Tsinghua University, Beijing, P. R. China
Liang, Zhixiu (författare)
Department of Chemistry, Brookhaven National Laboratory, Upton, NY, USA,Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA
Brena, Barbara (författare)
Uppsala universitet,Materialteori,Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
Cai, Zhao (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
Wu, Min (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
Jiao, Liying (författare)
Department of Chemistry, Tsinghua University, Beijing, P. R. China,Tsinghua Univ, Dept Chem, Beijing 10084, Peoples R China
Hu, Shu (författare)
Energy Sciences Institute, Yale West Campus, West Haven, CT, USA Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA,Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA;Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06511 USA
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)
2019-04-08
2019
Engelska.
Ingår i: Small. - : Wiley-VCH Verlagsgesellschaft. - 1613-6810 .- 1613-6829. ; 15:19
Relaterad länk:
https://www.osti.gov...
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https://urn.kb.se/re...
https://doi.org/10.1...
https://urn.kb.se/re...
https://urn.kb.se/re...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Using the MoS2-WTe2 heterostructure as a model system combined with electrochemical microreactors and density function theory calculations, it is shown that heterostructured contacts enhance the hydrogen evolution reaction (HER) activity of monolayer MoS2. Two possible mechanisms are suggested to explain this enhancement: efficient charge injection through large-area heterojunctions between MoS2 and WTe2 and effective screening of mirror charges due to the semimetallic nature of WTe2. The dielectric screening effect is proven minor, probed by measuring the HER activity of monolayer MoS2 on various support substrates with dielectric constants ranging from 4 to 300. Thus, the enhanced HER is attributed to the increased charge injection into MoS2 through large-area heterojunctions. Based on this understanding, a MoS2/WTe2 hybrid catalyst is fabricated with an HER overpotential of -140 mV at 10 mA cm(-2), a Tafel slope of 40 mV dec(-1), and long stability. These results demonstrate the importance of interfacial design in transition metal dichalcogenide HER catalysts. The microreactor platform presents an unambiguous approach to probe interfacial effects in various electrocatalytic reactions.

Ämnesord

NATURVETENSKAP  -- Kemi -- Fysikalisk kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Physical Chemistry (hsv//eng)
NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)
NATURVETENSKAP  -- Kemi -- Annan kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)

Nyckelord

electrochemical microreactors
heterostructures
hydrogen evolution reaction
interfacial effects
MoS2
WTe2 hybrid
Chemistry - Materials Science
Kemi - materialvetenskap
Chemistry - Physical Chemistry
Kemi - fysikalisk kemi

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