Pt/Mo2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation

Lin, Lili; Sheng, Wenchao; Yao, Siyu; Ma, Ding; Chen, Jingguang G.

doi:10.1016/j.jpowsour.2017.02.001

Title: Pt/Mo₂C/C-cp as a highly active and stable catalyst for ethanol electrooxidation

Journal Article · Thu Feb 09 00:00:00 EST 2017 · Journal of Power Sources

DOI:https://doi.org/10.1016/j.jpowsour.2017.02.001· OSTI ID:1434770

Lin, Lili ^[1]; Sheng, Wenchao ^[2]; Yao, Siyu ^[3]; Ma, Ding ^[4];

^[5]

Peking Univ., Beijing (China); Columbia Univ., New York, NY (United States)
Columbia Univ., New York, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Peking Univ., Beijing (China)
Columbia Univ., New York, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)

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.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012704; FG02-13ER16381; SC0009476

OSTI ID:: 1434770

Alternate ID(s):: OSTI ID: 1397408

Report Number(s):: BNL-203548-2018-JAAM

Journal Information:: Journal of Power Sources, Vol. 345, Issue C; ISSN 0378-7753

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 28 works

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Title: Pt/Mo2C/C-cp as a highly active and stable catalyst for ethanol electrooxidation

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Title: Pt/Mo₂C/C-cp as a highly active and stable catalyst for ethanol electrooxidation