Rare earth metal oxides as BH_4~--tolerance cathode electrocatalysts for direct borohydride fuel cells

Rare earth metal oxides（REMO） as cathode electrocatalysts in direct borohydride fuel cell（DBFC） were investigated.The REMO electrocatalysts tested showed favorable activity to the oxygen electro-reduction reaction and strong tolerance to the attack of BH 4-in alkaline electrolytes.The simple membran...

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Published in中国稀土学报：英文版 Vol. 30; no. 5; pp. 437 - 441
Main Author 倪学敏 王雅东 郭峰 姚佩 潘牧
Format Journal Article
LanguageEnglish
Published 2012
Subjects
峰值功率
燃料电池
电还原反应
硼氢化物
稀土金属氧化物
贮氢合金
阳极电催化剂
阴极
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Summary:Rare earth metal oxides（REMO） as cathode electrocatalysts in direct borohydride fuel cell（DBFC） were investigated.The REMO electrocatalysts tested showed favorable activity to the oxygen electro-reduction reaction and strong tolerance to the attack of BH 4-in alkaline electrolytes.The simple membraneless DBFCs using REMO as cathode electrocatalyst and using hydrogen storage alloy as anodic electrocatalyst exhibited an open circuit of about 1 V and peak power of above 60 mW/cm 2.The DBFC using Sm 2 O 3 as cathode electrocatalyst showed a relatively better performance.The maximal power density of 76.2 mW/cm 2 was obtained at the cell voltage of 0.52 V.
Bibliography:NI Xuemin, WANG Yadong, GUO Feng, YAO Pei, PAN Mu（State Key Laboratory of Advanced Technologyfdr Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China）
11-2788/TF
Rare earth metal oxides（REMO） as cathode electrocatalysts in direct borohydride fuel cell（DBFC） were investigated.The REMO electrocatalysts tested showed favorable activity to the oxygen electro-reduction reaction and strong tolerance to the attack of BH 4-in alkaline electrolytes.The simple membraneless DBFCs using REMO as cathode electrocatalyst and using hydrogen storage alloy as anodic electrocatalyst exhibited an open circuit of about 1 V and peak power of above 60 mW/cm 2.The DBFC using Sm 2 O 3 as cathode electrocatalyst showed a relatively better performance.The maximal power density of 76.2 mW/cm 2 was obtained at the cell voltage of 0.52 V.
direct borohydride fuel cell oxygen electro-reduction rare earth oxide membraneless DBFC
ISSN:1002-0721
2509-4963