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Title: Enhanced electrocatalytic activity and stability of Pd3V/C nanoparticles with a trace amount of Pt decoration for the oxygen reduction reaction

Abstract

In this study, carbon supported Pd3V bimetallic alloy nanoparticles (Pd3V/C) have been successfully synthesized via a simple impregnation–reduction method, followed by high temperature treatment under a H2 atmosphere. Electrochemical tests reveal that the half-wave potential of Pd3V/C-500 shifts positively 40 mV compared with Pd/C. However, the catalytic activity of Pd3V/C-500 suffers from serious degradation after 1k cycles. By a spontaneous displacement reaction or co-reduction method, a trace amount of Pt was decorated on the surface or inside of the Pd3V/C nanoparticles. The catalytic activity and stability of the Pd3V@Pt/C and Pt-Pd3V/C catalysts for the oxygen reduction reaction (ORR) are enhanced significantly, and are comparable to commercial Pt/C. In addition, the Pt mass activity of Pd3V@Pt/C and Pt-Pd3V/C improves by factors of 10.9 and 6.5 at 0.80 V relative to Pt/C. Moreover, Pt-decorated Pd3V/C nanoparticles show almost no obvious morphology change after durability tests, because the Pt-rich shell plays an important role in preventing degradation.

Authors:
 [1];  [2];  [1];  [1];  [1];  [1];  [2];  [1]
  1. Huazhong Univ. of Science and Technology, Wuhan (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, 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)
OSTI Identifier:
1222621
Report Number(s):
BNL-108452-2015-JA
Journal ID: ISSN 2050-7488; JMCAET; KC0403020
Grant/Contract Number:  
21306060
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Materials Chemistry. A
Additional Journal Information:
Journal Name: Journal of Materials Chemistry. A; Journal ID: ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; oxygen reduction reaction; fuel cell; Center for Functional Nanomaterials

Citation Formats

Liu, Sufen, Han, Lili, Zhu, Jing, Xiao, Weiping, Wang, Jie, Liu, Hongfang, Xin, Huolin, and Wang, Deli. Enhanced electrocatalytic activity and stability of Pd3V/C nanoparticles with a trace amount of Pt decoration for the oxygen reduction reaction. United States: N. p., 2015. Web. doi:10.1039/C5TA05202E.
Liu, Sufen, Han, Lili, Zhu, Jing, Xiao, Weiping, Wang, Jie, Liu, Hongfang, Xin, Huolin, & Wang, Deli. Enhanced electrocatalytic activity and stability of Pd3V/C nanoparticles with a trace amount of Pt decoration for the oxygen reduction reaction. United States. https://doi.org/10.1039/C5TA05202E
Liu, Sufen, Han, Lili, Zhu, Jing, Xiao, Weiping, Wang, Jie, Liu, Hongfang, Xin, Huolin, and Wang, Deli. 2015. "Enhanced electrocatalytic activity and stability of Pd3V/C nanoparticles with a trace amount of Pt decoration for the oxygen reduction reaction". United States. https://doi.org/10.1039/C5TA05202E. https://www.osti.gov/servlets/purl/1222621.
@article{osti_1222621,
title = {Enhanced electrocatalytic activity and stability of Pd3V/C nanoparticles with a trace amount of Pt decoration for the oxygen reduction reaction},
author = {Liu, Sufen and Han, Lili and Zhu, Jing and Xiao, Weiping and Wang, Jie and Liu, Hongfang and Xin, Huolin and Wang, Deli},
abstractNote = {In this study, carbon supported Pd3V bimetallic alloy nanoparticles (Pd3V/C) have been successfully synthesized via a simple impregnation–reduction method, followed by high temperature treatment under a H2 atmosphere. Electrochemical tests reveal that the half-wave potential of Pd3V/C-500 shifts positively 40 mV compared with Pd/C. However, the catalytic activity of Pd3V/C-500 suffers from serious degradation after 1k cycles. By a spontaneous displacement reaction or co-reduction method, a trace amount of Pt was decorated on the surface or inside of the Pd3V/C nanoparticles. The catalytic activity and stability of the Pd3V@Pt/C and Pt-Pd3V/C catalysts for the oxygen reduction reaction (ORR) are enhanced significantly, and are comparable to commercial Pt/C. In addition, the Pt mass activity of Pd3V@Pt/C and Pt-Pd3V/C improves by factors of 10.9 and 6.5 at 0.80 V relative to Pt/C. Moreover, Pt-decorated Pd3V/C nanoparticles show almost no obvious morphology change after durability tests, because the Pt-rich shell plays an important role in preventing degradation.},
doi = {10.1039/C5TA05202E},
url = {https://www.osti.gov/biblio/1222621}, journal = {Journal of Materials Chemistry. A},
issn = {2050-7488},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 14 00:00:00 EDT 2015},
month = {Mon Sep 14 00:00:00 EDT 2015}
}

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Cited by: 11 works
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