Selective increase in CO 2 electroreduction activity at grain-boundary surface terminations-Reference-Cited by-同舟云学术

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

Published:2017-12 Issue:6367 Volume:358 Page:1187-1192
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Mariano Ruperto G.¹^ORCID,McKelvey Kim²^ORCID,White Henry S.²^ORCID,Kanan Matthew W.¹^ORCID

Affiliation:

1. Department of Chemistry, Stanford University, 337 Campus Drive, Stanford, CA 94305, USA.

2. Department of Chemistry, University of Utah, 315 S 1400 E, Salt Lake City, UT 84112, USA.

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

Funder

National Science Foundation

Air Force Office of Scientific Research

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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