Core-shell structural nanodiamond@TiN supported Pt nanoparticles as a highly efficient and stable electrocatalyst for direct methanol fuel cells

被引：21

作者：

Zhao, Yuling ^{[1
]}

Wang, Yanhui ^{[1
]}

Dong, Liang ^{[1
]}

Zhang, Yan ^{[1
]}

Huang, Junjie ^{[1
]}

Zang, Jianbing ^{[1
]}

Lu, Jing ^{[2
]}

Xu, Xipeng ^{[2
]}

机构：

[1] Yanshan Univ, Coll Mat Sci & Engn, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao, Hebei, Peoples R China

[2] Huaqiao Univ, MOE Engn Res Ctr Brittle Mat Machining, Xiamen 361021, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2014年 / 148卷

基金：

中国国家自然科学基金;

关键词：

Nanodiamond; TiN; Electrocatalyst; Activity; Stability; CATALYST SUPPORT; TUNGSTEN CARBIDE; REDUCTION; OXIDATION; PLATINUM; PERFORMANCE; DURABILITY; MEMBRANES; HYBRID; POWDER;

D O I：

10.1016/j.electacta.2014.10.024

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel core-shell support material was designed with nanodiamond (ND) as core possessed excellent stability and TiN as shell improved the conductivity of support. The nano-TiN shell was decorated on the surface of ND by annealing TiO2 in nitrogen atmosphere, and the obtained ND@TiN was employed to support Pt nanoparticles (NPs). The ND@TiN support and Pt/ND@TiN electrocatalyst were characterized by X-ray diffraction and transmission electron microscopy. ND particles were coated uniformly by the TiN layer and Pt NPs with a mean size of 4.2 nm were highly dispersed on the surface of ND@TiN. The electrochemical results confirmed that the ND@TiN support possessed a much more stability than the carbon black and exhibited a bigger background current density than the ND. The Pt/ND@TiN catalyst showed higher catalytic activity and better stability in methanol oxidation and oxygen reduction reactions compared with the Pt/C and Pt/ND. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：8 / 14

页数：7

共 46 条

[1] Carbon supports for low-temperature fuel cell catalysts
Antolini, Ermete
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 88 (1-2) : 1 - 24
[2] On the stability of TiN-based electrocatalysts for fuel cell applications
Avasarala, Bharat
Haldar, Pradeep
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (06) : 3965 - 3974
[3] Electrochemical oxidation behavior of titanium nitride based electrocatalysts under PEM fuel cell conditions
Avasarala, Bharat
Haldar, Pradeep
[J]. ELECTROCHIMICA ACTA, 2010, 55 (28) : 9024 - 9034
[4] Microwave synthesis and characterization of Pt nanoparticles supported on undoped nanodiamond for methanol electrooxidation
Bian, L. Y.
Wang, Y. H.
Zang, J. B.
Meng, F. W.
Zhao, Y. L.
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (02) : 1220 - 1225
[5] Electrodeposition of Pt nanoparticles on undoped nanodiamond powder for methanol oxidation electrocatalysts
Bian, L. Y.
Wang, Y. H.
Zang, J. B.
Yu, J. K.
Huang, H.
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2010, 644 (01) : 85 - 88
[6] Template-free synthesis of rectangular mesoporous carbon nanorods and their application as a support for Pt electrocatalysts
Bo, Xiangjie
Zhu, Liande
Wang, Guang
Guo, Liping
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (12) : 5758 - 5763
[7] Carbon nanotubule membranes for electrochemical energy storage and production
Che, GL
Lakshmi, BB
Fisher, ER
Martin, CR
[J]. NATURE, 1998, 393 (6683) : 346 - 349
[8] Improved lifetime of PEM fuel cell catalysts through polymer stabilization
Cheng, Niancai
Mu, Shichun
Pan, Mu
Edwards, Peter P.
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (08) : 1610 - 1614
[9] Tungsten carbide as supports for Pt electrocatalysts with improved CO tolerance in methanol oxidation
Cui, Guofeng
Shen, Pei Kang
Meng, Hui
Zhao, Jie
Wu, Gang
[J]. JOURNAL OF POWER SOURCES, 2011, 196 (15) : 6125 - 6130
[10] Graphitized Nanodiamond as Highly Efficient Support of Electrocatalysts for Oxygen Reduction Reaction
Dong, Liang
Zang, Jianbing
Wang, Yongjiao
Pan, Hong
Wang, Yanhui
Zhao, Yuling
Su, Jing
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2014, 161 (03) : F185 - F191

← 1 2 3 4 5 →