An alkaline direct NaBH4-H2O2 fuel cell with high power density

被引：82

作者：

Cao, Dianxue ^{[1
]}

Chen, Dandan ^{[1
]}

Lan, Jian ^{[1
]}

Wang, Guiling ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2009年 / 190卷 / 02期

关键词：

Pt-Ru; Pd-Ir; Borohydride; hydrogen peroxide; Liquid alkaline fuel cell; DIRECT BOROHYDRIDE; HYDROGEN-PEROXIDE; OXIDATION; PERFORMANCE; AU; ELECTROCATALYSIS; ELECTROOXIDATION; ELECTRODES; REDUCTION; CATALYSTS;

D O I：

10.1016/j.jpowsour.2008.12.134

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：

A high performance alkaline direct borohydride-hydrogen peroxide fuel cell with Pt-Ru catalyzed nickel foam as anode and Pd-Ir catalyzed nickel foam as cathode is reported. The electrodes were prepared by electrodeposition of the catalyst components on nickel foam. Their morphology and composition were analyzed by SEM-EDX. The effects of concentrations of NaBH(4) and H(2)O(2) as well as operation temperature on the cell performance were investigated. The cell exhibited an open circuit voltage of about 1.0V and a peak power density of 198 mWcm(-2) at a current density of 397 mAcm(-2) and a cell voltage of 0.5V using 0.2 mol dm(-3) NaBH(4) as fuel and 0.4 mol dm(-3) H(2)O(2) as Oxidant operating at room temperature. Electrooxidation of NaBH(4) on Pt-Ru nanoparticles was studied using a rotating disk electrode and complete 8e(-) oxidation was observed in 2 mol dm(-3) NaOH solution containing 0.01 mol dm(-3) NaBH(4). (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：346 / 350

页数：5

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