Development of 10 kW-scale hydrogen generator using chemical hydride

被引:152
作者
Kojima, Y
Suzuki, K
Fukumoto, K
Kawai, Y
Kimbara, M
Nakanishi, H
Matsumoto, S
机构
[1] Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan
[2] Toyota Motor Co Ltd, Higashifuji Tech Ctr, Shizuoka 4101193, Japan
关键词
sodium borohydride; chemical hydride; hydrogen generator; catalyst; hydrogen; fuel cell;
D O I
10.1016/S0378-7753(03)00827-9
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
We have developed a hydrogen generator that generates high purity hydrogen gas from the aqueous solution of sodium borohydride, NaBH4. This paper discussed the performance testing of the hydrogen generator using a Pt-LiCoO2-coated honeycomb monolith. The NaBH4 solution hydrolyzed to generate H-2 and sodium metaborate when it contacted the monolith. The gravimetric and the volumetric H? densities of the system were 2 wt.% and 1.5 kg H-2/100 1, respectively. The volumetric density was similar to that of the compressed H,) at 25 MPa. The hydrogen generator successfully provided a maximum H,) generation rate of 120 nl/min. Assuming a standard PEM (polymer electrolyte fuel cell, PEFC) fuel cell operated at 0.7 V, generating 120 nl/min was equivalent to 12 kW. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:22 / 26
页数:5
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