A safe, portable, hydrogen gas generator using aqueous borohydride solution and Ru catalyst

A safe, portable, hydrogen gas generator using aqueous borohydride solution and Ru catalyst
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DOI:
10.1016/s0360-3199(00)00021-5
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发表时间:
2000-10-01
影响因子:
7.2
通讯作者:
Binder, M
Binder, M
中科院分区:
工程技术2区
文献类型:
--
作者:
Amendola, SC;Sharp-Goldman, SL;Binder, M

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这是一种安全、简单、紧凑的工艺,通过使用钌(Ru)催化剂,从碱稳定的硼氢化钠(NaBH4)水溶液中按需生成高纯度氢气。这些基于nabh4的溶液可以储存高达7%重量的氢。在环境条件下,NaBH4溶液不会产生大量的H-2气体。然而,当与Ru催化剂接触时,NaBH4溶液会自发水解生成H-2气体和硝酸钠(一种水溶性惰性盐)。当Ru催化剂与NaBH4溶液分离时,H-2的生成停止。这种H-2发电机比常用的H-2存储设备或发电机更安全,对H-2需求的响应更快,H-2存储效率更高,更容易控制。不易燃的NaBH4溶液可以很容易地耦合为内燃机或燃料电池动力系统提供H-2。(C) 2000年国际氢能协会。Elsevier Science Ltd.出版。版权所有。
A safe, simple, compact process generates high-purity hydrogen gas on demand from base-stabilized, aqueous solutions of sodium borohydride, NaBH4, by using a ruthenium, Ru, catalyst. These NaBH4-based solutions can store up to 7% hydrogen by weight. NaBH4 solutions do not generate significant amounts of H-2 gas under ambient conditions. However, when in contact with Ru catalyst, NaBH4 solutions spontaneously hydrolyze to form H-2 gas and sodium berate, a water-soluble, inert salt. When Ru catalyst is separated from the NaBH4 solution, H-2 generation stops. This H-2 generator promises to be safer, have quicker response to H-2 demand, have a greater H-2 storage efficiency, and be more easily controlled than commonly used H-2 storage devices or generators. Nonflammable NaBH4 solutions can be easily coupled to provide H-2 to internal combustion engines or fuel cell power systems. (C) 2000 International Association for Hydrogen Energy. Published by Elsevier Science Ltd. All rights reserved.