uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Revealing the Contribution of Individual Factors to Hydrogen Evolution Reaction Catalytic Activity
Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA.
Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA;Energy Sci Inst, Yale West Campus, West Haven, CT 06525 USA.
Show others and affiliations
2018 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 30, no 18, article id 1706076Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2018. Vol. 30, no 18, article id 1706076
Keywords [en]
2D TMD materials, electrochemical microreactors, hydrogen evolution reaction, individual factors, overall performance
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-356393DOI: 10.1002/adma.201706076ISI: 000431615100009PubMedID: 29573299OAI: oai:DiVA.org:uu-356393DiVA, id: diva2:1235462
Funder
Swedish Research CouncilStandUpAvailable from: 2018-07-25 Created: 2018-07-25 Last updated: 2018-07-25Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMed

Authority records BETA

Silva, Jose LuisBrena, BarbaraAraujo, Carlos Moyses

Search in DiVA

By author/editor
Silva, Jose LuisBrena, BarbaraAraujo, Carlos Moyses
By organisation
Materials Theory
In the same journal
Advanced Materials
Physical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 73 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf