Promotion of ceria-modified Pt-Au/C cathode catalysts for oxygen reduction reaction by H2-induced surface segregation

Chen Wei Liu; Yu Chen Wei; Kuan Wen Wang

doi:10.1039/b920212a

Promotion of ceria-modified Pt-Au/C cathode catalysts for oxygen reduction reaction by H₂-induced surface segregation

Chen Wei Liu, Yu Chen Wei, Kuan Wen Wang

Graduate Institute of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The ORR activity of Ce-modified Pt₅₀Au₅₀/C alloy catalysts, compared to commercial Pt/C, can be promoted by H₂ treatment at 520 K due to the surface and structural alteration by reduction of surface oxides, an increase in the surface composition of metallic Pt, and H₂ induced surface Au segregation.

Original language	English
Pages (from-to)	2483-2485
Number of pages	3
Journal	Chemical Communications
Volume	46
Issue number	14
DOIs	https://doi.org/10.1039/b920212a
State	Published - 2010

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title = "Promotion of ceria-modified Pt-Au/C cathode catalysts for oxygen reduction reaction by H2-induced surface segregation",

abstract = "The ORR activity of Ce-modified Pt50Au50/C alloy catalysts, compared to commercial Pt/C, can be promoted by H2 treatment at 520 K due to the surface and structural alteration by reduction of surface oxides, an increase in the surface composition of metallic Pt, and H2 induced surface Au segregation.",

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AU - Liu, Chen Wei

AU - Wei, Yu Chen

AU - Wang, Kuan Wen

PY - 2010

Y1 - 2010

N2 - The ORR activity of Ce-modified Pt50Au50/C alloy catalysts, compared to commercial Pt/C, can be promoted by H2 treatment at 520 K due to the surface and structural alteration by reduction of surface oxides, an increase in the surface composition of metallic Pt, and H2 induced surface Au segregation.

AB - The ORR activity of Ce-modified Pt50Au50/C alloy catalysts, compared to commercial Pt/C, can be promoted by H2 treatment at 520 K due to the surface and structural alteration by reduction of surface oxides, an increase in the surface composition of metallic Pt, and H2 induced surface Au segregation.

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U2 - 10.1039/b920212a

DO - 10.1039/b920212a

M3 - 期刊論文

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AN - SCOPUS:77949848964

SN - 1359-7345

VL - 46

SP - 2483

EP - 2485

JO - Chemical Communications

JF - Chemical Communications

IS - 14

ER -

Promotion of ceria-modified Pt-Au/C cathode catalysts for oxygen reduction reaction by H2-induced surface segregation

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Promotion of ceria-modified Pt-Au/C cathode catalysts for oxygen reduction reaction by H₂-induced surface segregation