Direct borohydride fuel cell using Ni-based composite anodes

被引：114
|
作者：
Ma, Jia [1 ]
Sahai, Yogeshwar [1 ]
Buchheit, Rudolph G. [1 ]
机构：
[1] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA
来源：
JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 15期
关键词：
Fuel cell; Direct borohydride fuel cell; Nickel-based composite; Oxygen; Hydrogen peroxide; Cell performance; NICKEL FOAM CATHODE; OXIDATION; ELECTROCATALYSTS; PERFORMANCE; OPERATION; ALLOYS; AU;
D O I：
10.1016/j.jpowsour.2010.02.034
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：
In this study, nickel-based composite anode catalysts consisting of Ni with either Pd on carbon or Pt on carbon (the ratio of Ni:Pd or Ni:Pt being 25:1) were prepared for use in direct borohydride fuel cells (DBFCs). Cathode catalysts used were 1 mg cm(-2) Pt/C or Pd electrodeposited on activated carbon cloth. The oxidants were oxygen, oxygen in air, or acidified hydrogen peroxide. Alkaline solution of sodium borohydride was used as fuel in the cell. High power performance has been achieved by DBFC using non-precious metal, Ni-based composite anodes with relatively low anodic loading (e.g., 270 mW cm(-2) for NaBH4/O-2 fuel cell at 60 degrees C, 665 mW cm(-2) for NaBH4/H2O2 fuel cell at 60 degrees C). Effects of temperature, oxidant, and anode catalyst loading on the DBFC performance were investigated. The cell was operated for about 100 h and its performance stability was recorded. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：4709 / 4713
页数：5
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