Hydrogen generation from the hydrolysis of sodium borohydride with new pyridinium dicationic salts containing transition metal complexes

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• 作者：Amutha Chinnappan^a ; Hern Kim^a ; ^{hernkim@mju.ac.kr} ; Chinnappan Baskar^b ; In Taek Hwang^c
• 关键词：Pyridinium dications ; Ionic liquids ; Tetrachloronickelate (II) anion ; Hydrogen generation ; Sodium borohydride ; Hydrolysis
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：July, 2012
• 卷：37
• 期：13
• 页码：10240-10248
• 文件大小：681 K

摘要

Pyridinium based dicationic ionic salts [C₆(mpy)₂] containing transition metal halide anions [NiCl₄]^{2鈭?/sup> and [CoCl₄]2鈭?/sup> were synthesized and characterized by 1H NMR, 13C NMR, LRMS-MS & TGA. The catalytic activities of dicationic ionic liquids were studied for the first time in the hydrolysis reaction of sodium borohydride. The reported work includes the full experimental details for the collection of a wealth of kinetic data to determine the activation energy (Ea聽=聽56.36聽kJ/mol) and effects of the amount of catalyst, amount of substrate and temperature on the rate for the catalytic hydrolysis of NaBH₄. The activation energy of the catalyst dicationic tetrachloronickelate (II) anion for hydrogen production is comparable to that of other metal halide catalysts.}