Catalytically enhanced dehydrogenation of Li–Mg–N–H hydrogen storage material by transition metal nitrides
Catalytically enhanced dehydrogenation of Li–Mg–N–H hydrogen storage material by transition metal nitrides
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DOI：
10.1016/j.jallcom.2008.01.031
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发表时间：
2009-01
影响因子：
6.2
通讯作者：
Lai-Peng Ma;Ping Wang;H. Dai;Hui‐Ming Cheng
中科院分区：
文献类型：
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作者：
Lai-Peng Ma;Ping Wang;H. Dai;Hui‐Ming Cheng
基于对脱氢/再氢化反应机理的理解，我们研究了两种商用过渡金属氮化物TaN和TiN对Li-Mg-N-H体系脱氢性能的影响。两种氮化物对于加速该体系的脱氢反应都具有催化活性。这种催化增强很好地持续而没有氢容量损失。结合过渡金属氮化物催化加氢反应的模型，提出了过渡金属氮化物催化加氢反应的机理。
Motivated by the understanding of dehydrogenation/rehydrogenation reaction mechanisms, we examine the effect of two commercial transition metal nitrides, TaN and TiN, on the dehydrogenation performance of Li–Mg–N–H system. Both nitrides are catalytically active for accelerating the dehydrogenation reaction of this system. Such catalytic enhancement well persists without hydrogen capacity loss. A catalytic mechanism is proposed with reference to the catalytic model for hydrotreating reactions by transition metal nitrides.