Cited by 818CO2 Reduction Techniques and CatalystsElectrocatalysts for Energy ConversionCatalysts for Methane Reforming

Selective increase in CO 2 electroreduction activity at grain-boundary surface terminations

Mariano, Ruperto G., McKelvey, Kim, White, Henry S., Kanan, Matthew W.·2017·Science

Abstract

Going with the grain boundaries: Bulk defects in a metal, such as grain boundaries, can create regions of increased strain at its surface that could affect its catalytic activity. Mariano et al. studied the electroreduction of CO 2 to CO on polycrystalline gold films, a reaction that competes with H 2 evolution. By annealing the films to create larger grains, they could change the types and distribution of grain boundaries at the surface. Scanning electrochemical cell microscopy revealed that the dislocation density correlated with CO 2 electroreduction activity, but such defects had no effect on H 2 evolution. Science , this issue p. 1187

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Crossref · 10.1126/science.aao3691

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54 of 54 references verified0 citation errors · 0 not checkable

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Authors
Mariano, R. G., McKelvey, K., White, H. S., & Kanan, M. W.
Affiliations
  • Stanford University (US)
  • University of Utah (US)
Corresponding author
  • McKelvey, Kim
  • Kanan, Matthew W.
Venue
Science
Published
2017-12
Volume
358
Issue
6367
Pages
1187-1192
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2772769038
Cited by
818
References
54
Citations by year
2026: 54 · 2025: 85 · 2024: 95 · 2023: 88 · 2022: 110 · 2021: 116 · 2020: 125 · 2019: 93 · 2018: 52
FWCI
19.80
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (award339015, CHE-1565945)
  • Air Force Office of Scientific Research (award339016, FA9550-14-1-0003)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Chemical Engineering › Catalysis › Catalysts for Methane Reforming
Keywords
electrochemical CO2 reduction, grain boundaries, polycrystalline gold films, dislocation density, hydrogen evolution reaction, electrocatalysis, grain size, surface strain, scanning electrochemical cell microscopy

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