Chemical hydrogen storage using polynuclear borane anion salts
Chemical hydrogen storage using polynuclear borane anion salts
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DOI：
10.1016/j.ijhydene.2010.08.120
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
A. Safronov;S. Jalisatgi;H. Lee;M. Hawthorne
中科院分区：
文献类型：
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作者：
A. Safronov;S. Jalisatgi;H. Lee;M. Hawthorne
多核硼烷阴离子 nido-B11H14−、closo-B10H102− 和 closo-B12H122− 经过非均相过渡金属催化水解产生氢气。水解速率取决于多核硼烷阴离子的浓度和金属催化剂的表面积。多核硼烷阴离子的水溶液，尤其是 closo-B10H102− 和 closo-B12H122− 二价阴离子，在没有催化剂的情况下在很长一段时间内（数年）非常稳定，并且在铑金属催化剂存在下自发产生氢气。这些多核硼烷阴离子在便携式储氢系统中具有很高的应用潜力，而无需像 NaBH4 那样需要高 pH 水介质进行存储。
The polynuclear borane anions nido-B11H14−, closo-B10H102−and closo-B12H122−undergo heterogeneous transition metal-catalyzed hydrolysis to generate hydrogen. The rate of hydrolysis is dependent upon the concentration of polynuclear borane anions and surface area of the metallic catalyst. The aqueous solutions of polynuclear borane anions, especially the closo-B10H102−and closo-B12H122−dianions, are very stable for an extended period of time (years) in the absence of catalyst and spontaneously generate hydrogen in the presence of a rhodium metal catalyst. These polynuclear borane anions have a high potential for use in portable hydrogen storage systems without requiring high pH aqueous media for storage as in the case of NaBH4.