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Title: Pt/Mo 2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation

Abstract

Here, a Pt/Mo 2C/C-cp electrocatalyst with optimized Pt-Mo 2C chemical bonding is synthesized and evaluated for the ethanol oxidation reaction (EOR). The chemical bonding of Mo 2C to Pt particles renders exceptional EOR activity at low potentials, which is 15 and 2.5 times higher than Pt/C and commercial 40% PtRu/C, respectively, at 0.6 V (vs. RHE). The stability of the Pt/Mo 2C/C-cp electrocatalyst is comparable to the commercial 40% PtRu/C catalyst. CO stripping test demonstrates the existence of highly active sites for CO oxidation on the Pt/Mo 2C/C-cp catalyst. In-situ infrared spectroscopic studies of EOR reveal that the excellent anti-poisoning ability of the Pt/Mo 2C/C-cp catalyst is related to the relatively weak binding of carbonyl intermediates over the Pt/Mo 2C/C-cp catalysts.

Authors:
 [1];  [2];  [3];  [4]; ORCiD logo [5]
  1. Peking Univ., Beijing (China); Columbia Univ., New York, NY (United States)
  2. Columbia Univ., New York, NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Peking Univ., Beijing (China)
  5. Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1434770
Alternate Identifier(s):
OSTI ID: 1397408
Report Number(s):
BNL-203548-2018-JAAM
Journal ID: ISSN 0378-7753
Grant/Contract Number:  
SC0012704; FG02-13ER16381
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 345; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; Ethanol electrooxidation; CO oxidation; Carbides; Pt-modified carbides

Citation Formats

Lin, Lili, Sheng, Wenchao, Yao, Siyu, Ma, Ding, and Chen, Jingguang G. Pt/Mo2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation. United States: N. p., 2017. Web. doi:10.1016/j.jpowsour.2017.02.001.
Lin, Lili, Sheng, Wenchao, Yao, Siyu, Ma, Ding, & Chen, Jingguang G. Pt/Mo2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation. United States. doi:10.1016/j.jpowsour.2017.02.001.
Lin, Lili, Sheng, Wenchao, Yao, Siyu, Ma, Ding, and Chen, Jingguang G. Thu . "Pt/Mo2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation". United States. doi:10.1016/j.jpowsour.2017.02.001. https://www.osti.gov/servlets/purl/1434770.
@article{osti_1434770,
title = {Pt/Mo2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation},
author = {Lin, Lili and Sheng, Wenchao and Yao, Siyu and Ma, Ding and Chen, Jingguang G.},
abstractNote = {Here, a Pt/Mo2C/C-cp electrocatalyst with optimized Pt-Mo2C chemical bonding is synthesized and evaluated for the ethanol oxidation reaction (EOR). The chemical bonding of Mo2C to Pt particles renders exceptional EOR activity at low potentials, which is 15 and 2.5 times higher than Pt/C and commercial 40% PtRu/C, respectively, at 0.6 V (vs. RHE). The stability of the Pt/Mo2C/C-cp electrocatalyst is comparable to the commercial 40% PtRu/C catalyst. CO stripping test demonstrates the existence of highly active sites for CO oxidation on the Pt/Mo2C/C-cp catalyst. In-situ infrared spectroscopic studies of EOR reveal that the excellent anti-poisoning ability of the Pt/Mo2C/C-cp catalyst is related to the relatively weak binding of carbonyl intermediates over the Pt/Mo2C/C-cp catalysts.},
doi = {10.1016/j.jpowsour.2017.02.001},
journal = {Journal of Power Sources},
number = C,
volume = 345,
place = {United States},
year = {Thu Feb 09 00:00:00 EST 2017},
month = {Thu Feb 09 00:00:00 EST 2017}
}

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