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Cited by 414

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Intrinsic Relationship between Enhanced Oxygen Reduction Reaction Activity and Nanoscale Work Function of Doped Carbons

Cheon, Jae Yeong, Kim, Jong Hun, Kim, Jae Hyung, Goddeti, Kalyan C., Park, Jeong Young, Joo, Sang Hoon·2014·Journal of the American Chemical Society

Abstract

Nanostructured carbon materials doped with a variety of heteroatoms have shown promising electrocatalytic activity in the oxygen reduction reaction (ORR). However, understanding of the working principles that underpin the superior ORR activity observed with doped nanocarbons is still limited to predictions based on theoretical calculations. Herein, we demonstrate, for the first time, that the enhanced ORR activity in doped nanocarbons can be correlated with the variation in their nanoscale work function. A series of doped ordered mesoporous carbons (OMCs) were prepared using N, S, and O as dopants; the triple-doped, N,S,O-OMC displayed superior ORR activity and four-electron selectivity compared to the dual-doped (N,O-OMC and S,O-OMC) and the monodoped (O-OMC) OMCs. Significantly, the work functions of these heteroatom-doped OMCs, measured by Kelvin probe force microscopy, display a strong correlation with the activity and reaction kinetics for the ORR. This unprecedented experimental insight can be used to provide an explanation for the enhanced ORR activity of heteroatom-doped carbon materials.

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Metadata

Authors
Cheon, J. Y., Kim, J. H., Kim, J. H., Goddeti, K. C., Park, J. Y., & Joo, S. H.
Venue
Journal of the American Chemical Society
Published
2014-06-13
Volume
136
Issue
25
Pages
8875-8878
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2319861996
Cited by
414
References
5
FWCI
10.59
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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