Electrocatalytic Performance of Cathodic Ir-Fe/C Catalyst in Direct Methanol Fuel Cell

被引：3

作者：

Guo Qi ^{[2
]}

Li Lin-Ru ^{[1
]}

Lu Liang ^{[1
]}

Ji Yun ^{[1
]}

Lu Tian-Hong ^{[1
]}

机构：

[1] Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Key Lab New Power Batteries, Nanjing 210097, Jiangsu, Peoples R China

[2] Jiangsu Inst Educ, Sch Life Sci & Chem, Nanjing 210013, Jiangsu, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2012年 / 33卷 / 05期

关键词：

Carbon supported Ir-Fe catalyst; Methanol oxidation; Methanol tolerance ability; Direct methanol fuel cell(DMFC); OXYGEN REDUCTION;

D O I：

10.3969/j.issn.0251-0790.2012.05.025

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ir-Fe/C catalyst was prepared. The electrocatalytic activity of the Ir-Fe/C catalyst for the oxygen reduction and its methanol tolerance ability were investigated, based on the characterization with X-ray diffractometer(XRD) and energy dispersive spectrometer (EDS). The results show that the onset potentials of the oxygen reduction at the Ir/C and Ir-Fe/C catalyst electrodes are 0.57 and 0.65 V, respectively, and the current densities at 0.2 V are 4.6 and 5.8 mA/cm(2), respectively. It indicates that the electrocatalytic activity of the Ir-Fe/C catalyst for the oxygen reduction is better than that of the Ir/C catalyst. In addition, the Ir-Fe/C catalyst possesses the high methanol tolerance ability. These results lay a strong basis for the use of the Ir-Fe/C cathodic catalyst in direct methanol fuel cell(DMFC).

引用

页码：1007 / 1010

页数：4

共 19 条

[1] Formation of carbon supported PtRu alloys: an XRD analysis [J].