期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 14, 页码 7344-7349出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.03.144
关键词
Hydrogen production; Sodium borohydride; Portable fuel cell; Reaction engineering
资金
- MIUR (Ministero dell'Universita' e della Ricerca Scientifica e Tecnologica) under the FISR (Fondo Integrativo Speciale per la Ricerca)
Chemical hydrides can be a simple and safe hydrogen vector for polymer fuel cells. In particular the catalytic hydrolysis of sodium borohydride (NaBH(4)) is here envisaged to produce on-demand hydrogen to be supplied to a small solid polymer fuel cell in a portable energy generator. A compact hydrogen generator is designed around a tubular catalytic reactor, whose catalytic powder is held in place by magnetic field. The gas is generated by the exothermic hydrolysis reaction of an aqueous sodium borohydride solution in contact with no-noble catalyst particles inside the reactor. The reaction produces wet hydrogen and borate, which is soluble in water and not harmful to the environment. When hydrogen demand stops, the reactor is emptied and the hydrolysis reaction ceases. A generator was then tested showing a smooth operation and a reasonably good performance. Correct choice of operating conditions and start-up procedures are requested to have a hydrogen production adequate to the fuel cell needs. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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