Bimetallic Catalyst of PtIr Nanoparticles Decorated on Carbon Black with High Electrocatalytic Activity for Methanol Oxidation

被引：1

作者：

Hu, Xue-Qi ^{[1
]}

Guo, Dao-Jun ^{[1
]}

Xu, Yan-Bin ^{[2
]}

机构：

[1] Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China

[2] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China

来源：

ENERGY AND ENVIRONMENT FOCUS | 2016年 / 5卷 / 02期

关键词：

PtIr Nanoparticles; Methanol Oxidation; Nanocomposite Catalyst; Direct Methanol Fuel Cell;

D O I：

10.1166/eef.2016.1197

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

PtIr bimetallic electrocatalysts supported on carbon black (PtIr/C) with different contents of iridium (Ir%: 5, 15, 20, 25 and 30) are prepared using a one-step improved facile ethylene glycol reduction method. Transmission electron microscopy, X-ray diffraction is employed to characterize the structure of PtIr/C. Electrochemical studies show that the presence of Ir significantly improves the catalytic activity of Pt toward the electrochemical oxidation of methanol. Lower peak potential and onset potential for methanol oxidation are observed on the bimetallic catalysts than on the commercial Pt/C (Johnson Matthey).

引用

页码：85 / 89

页数：5

共 24 条

[1] The methanol oxidation reaction on platinum alloys with the first row transition metals - The case of Pt-Co and -Ni alloy electrocatalysts for DMFCs: A short review [J].

Antolini, E ;

Salgado, JRC ;

Gonzalez, ER .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 63 (1-2) :137-149

[2] ELECTROOXIDATION OF METHANOL ON PLATINUM BONDED TO THE SOLID POLYMER ELECTROLYTE, NAFION [J].

ARAMATA, A ;

KODERA, T ;

MASUDA, M .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1988, 18 (04) :577-582

[3] Size-selected synthesis of PtRu nano-catalysts: Reaction and size control mechanism [J].

Bock, C ;

Paquet, C ;

Couillard, M ;

Botton, GA ;

MacDougall, BR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (25) :8028-8037

[4] Pt-Sn/C electrocatalysts for methanol oxidation synthesized by reduction with formic acid [J].

Colmati, F ;

Antolini, E ;

Gonzalez, ER .

ELECTROCHIMICA ACTA, 2005, 50 (28) :5496-5503

[5] Preparation of PtNi nanoparticles for the electrocatalytic oxidation of methanol [J].

Deivaraj, TC ;

Chen, WX ;

Lee, JY .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (10) :2555-2560

[6] Kinetic study of methanol oxidation on carbon-supported PtRu electrocatalyst [J].

Gojkovic, SL ;

Vidakovic, TR ;

Durovic, DR .

ELECTROCHIMICA ACTA, 2003, 48 (24) :3607-3614

[7] Tin/platinum bimetallic nanotube array and its electrocatalytic activity for methanol oxidation [J].

Guo, YG ;

Hu, JS ;

Zhang, HM ;

Liang, HP ;

Wan, LJ ;

Bai, CL .

ADVANCED MATERIALS, 2005, 17 (06) :746-+

[8] Nanoporous TiO2-supported bimetallic catalysts for methanol oxidation in acidic media [J].

Hepel, Maria ;

Kumarihamy, Indee ;

Zhong, C. J. .

ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (09) :1439-1444

[9] Low-Defect MWNT-Pt Nanocomposite as a High Performance Electrocatalyst for Direct Methanol Fuel Cells [J].

Huang, Huajie ;

Sun, Dongping ;

Wang, Xin .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (39) :19405-19412

[10] Platinum-iridium alloys as oxygen reduction electrocatalysts for polymer electrolyte fuel cells [J].

Ioroi, T ;

Yasuda, K .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (10) :A1917-A1924

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