A high-performance hydrogen generation system: Transition metal-catalyzed dissociation and hydrolysis of ammonia-borane
A high-performance hydrogen generation system: Transition metal-catalyzed dissociation and hydrolysis of ammonia-borane
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DOI：
10.1016/j.jpowsour.2005.05.043
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发表时间：
2006-06-01
影响因子：
9.2
通讯作者：
Xu, Qiang
中科院分区：
文献类型：
--
作者：
Chandra, Manish;Xu, Qiang
实现了过渡金属催化氨硼配合物（NH3BH3）在室温下解离水解的高效制氢体系。NH3BH3溶于水，在没有空气的情况下形成稳定的溶液。在不同浓度的溶液中加入适当数量的Pt、Rh、Pd等金属催化剂，可使氢气严格释放，H-2与NH3BH3之比高达3.0，相当于起始原料NH3BH3和H2O的8.9 wt.%。Pt催化剂活性最高，回收后的催化剂无明显失活现象。该系统在便携式燃料电池中具有很大的应用潜力。(c) 2005 Elsevier B.V.版权所有
A high-performance hydrogen generation system based on transition metal-catalyzed dissociation and hydrolysis of ammonia-borane complex (NH3BH3) at room temperature has been achieved. NH3BH3 dissolves in water to form a solution stable in the absence of air. The addition of a catalytic amount of suitable metal catalysts such as Pt, Rh, and Pd into the solutions with various concentrations leads to rigorous release of hydrogen gas with an H-2 to NH3BH3 ratio up to 3.0, corresponding to 8.9 wt.% of the starting materials NH3BH3 and H2O. The Pt catalysts are the most active and no significant deactivation was observed for the recycled catalysts. This new system possesses high potential to find its application to portable fuel cells. (c) 2005 Elsevier B.V. All rights reserved.