Carbon-supported Ag@Pt core-shell nanoparticles with enhanced electrochemical activity for methanol oxidation and oxygen reduction reaction

被引：75

作者：

Cao, Jianyu ^{[1
,2
]}

Guo, Mengwei ^{[1
]}

Wu, Jinyan ^{[1
]}

Xu, Juan ^{[1
,2
]}

Wang, Wenchang ^{[1
]}

Chen, Zhidong ^{[2
]}

机构：

[1] Changzhou Univ, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Key Lab Solar Cell Mat & Technol Jiangsu Prov, Changzhou 213164, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2015年 / 277卷

基金：

中国国家自然科学基金;

关键词：

Core-shell nanoparticles; Electrocatalyst; Methanol oxidation; Oxygen reduction reaction; FUEL-CELLS; PLATINUM NANOPARTICLES; PARTICLE-SIZE; ELECTROCATALYST; DURABILITY; CATALYST; PERFORMANCE; ELECTRODE; PD;

D O I：

10.1016/j.jpowsour.2014.12.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon-supported Ag@Pt core-shell nanoparticles with different Ag/Pt ratios are successfully prepared via a facile stepwise reduction approach and used as electrocatalysts for direct methanol fuel cell (DMFC). The nanostructured Pt shells on the Ag core are confirmed by high-resolution transmission electron microscopy (HRTEM). Electrochemical studies reveal that such Ag@Pt core-shell catalysts possess higher electrocatalytic activities for both methanol oxidation and oxygen reduction reaction (ORR) in comparison to the commercial Pt/C, which may be attributed to high utilization of Pt resulted from the formation of core-shell structure and the appropriate size of core-shell Ag@Pt particles (similar to 3.0 nm). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：155 / 160

页数：6

共 28 条

[11] Pt-Au core/shell nanorods: preparation and applications as electrocatalysts for fuel cells
Liu, Chen-Wei
Wei, Yu-Chen
Liu, Chung-Chiun
Wang, Kuan-Wen
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (11) : 4641 - 4644
[12] A review of anode catalysis in the direct methanol fuel cell
Liu, HS
Song, CJ
Zhang, L
Zhang, JJ
Wang, HJ
Wilkinson, DP
[J]. JOURNAL OF POWER SOURCES, 2006, 155 (02) : 95 - 110
[13] REVIEWS OF APPLIED ELECTROCHEMISTRY .23. PARTICLE-SIZE AND STRUCTURAL EFFECTS IN PLATINUM ELECTROCATALYSIS
MUKERJEE, S
[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 1990, 20 (04) : 537 - 548
[14] Performance and durability of Pt/C cathode catalysts with different kinds of carbons for polymer electrolyte fuel cells characterized by electrochemical and in situ XAFS techniques
Nagasawa, Kensaku
Takao, Shinobu
Higashi, Kotaro
Nagamatsu, Shin-ichi
Samjeske, Gabor
Imaizumi, Yoshiaki
Sekizawa, Oki
Yamamoto, Takashi
Uruga, Tomoya
Iwasawa, Yasuhiro
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (21) : 10075 - 10087
[15] Oxygen reduction on a high-surface area Pt/Vulcan carbon catalyst: a thin-film rotating ring-disk electrode study
Paulus, UA
Schmidt, TJ
Gasteiger, HA
Behm, RJ
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 495 (02): : 134 - 145
[16] OXYGEN REDUCTION ON SMALL SUPPORTED PLATINUM PARTICLES
PEUCKERT, M
YONEDA, T
BETTA, RAD
BOUDART, M
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1986, 133 (05) : 944 - 947
[17] Surface segregation and stability of core-shell alloy catalysts for oxygen reduction in acid medium
Ramirez-Caballero, Gustavo E.
Ma, Yuguang
Callejas-Tovar, Rafael
Balbuena, Perla B.
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (09) : 2209 - 2218
[18] Serpell CJ, 2011, NAT CHEM, V3, P478, DOI [10.1038/NCHEM.1030, 10.1038/nchem.1030]
[19] Synthesis and characterization of platinum monolayer oxygen-reduction electrocatalysts with Co-Pd core-shell nanoparticle supports
Shao, Minhua
Sasaki, Kotaro
Marinkovic, Nebojsa S.
Zhang, Lihua
Adzic, Radoslav R.
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (12) : 2848 - 2853
[20] Mechanistic study on the bis(p-sulfonatophenyl)phenylphosphine synthesis of monometallic Pt hollow nanoboxes using Ag*-Pt core-shell nanocubes as sacrificial templates
Tan, Yen-Nee
Yang, Jun
Lee, Jim Yang
Wang, Daniel I. C.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (38) : 14084 - 14090

← 1 2 3 →