New synthesis route for ternary transition metal amides as well as ultrafast amide-hydride hydrogen storage materials.
New synthesis route for ternary transition metal amides as well as ultrafast amide-hydride hydrogen storage materials.
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DOI：
10.1039/c6cc00719h
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发表时间：
2016-03
影响因子：
4.9
通讯作者：
Hujun Cao;A. Santoru;C. Pistidda;Theresia M. M. Richter-Theresia-M.-M.-Richter-13076616;A. Chaudhary;G. Gizer;R. Niewa;Ping Chen;T. Klassen;M. Dornheim
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文献类型：
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作者：
Hujun Cao;A. Santoru;C. Pistidda;Theresia M. M. Richter-Theresia-M.-M.-Richter-13076616;A. Chaudhary;G. Gizer;R. Niewa;Ping Chen;T. Klassen;M. Dornheim
采用机械化学方法成功合成了K2[Mn(NH2)4]和K2[Zn(NH2)4]。K2[Mn(NH2)4]和LiH的混合物表现出优异的再加氢性能。事实上，在脱氢后，K2[Mn(NH2)4]-8LiH在约230℃和5 MPa的H2下在60秒内完全再氢化。这是迄今为止已知的酰胺-氢化物体系中最快的再加氢速率之一。这项工作还展示了通过分解M[M‘(NH2)n]（其中M是碱或碱土金属，M’是过渡金属）和金属氢化物的混合物来合成过渡金属氮化物的策略。
K2[Mn(NH2)4] and K2[Zn(NH2)4] were successfully synthesized via a mechanochemical method. The mixture of K2[Mn(NH2)4] and LiH showed excellent rehydrogenation properties. In fact, after dehydrogenation K2[Mn(NH2)4]-8LiH fully rehydrogenates within 60 seconds at ca. 230 °C and 5 MPa of H2. This is one of the fastest rehydrogenation rates in amide-hydride systems known to date. This work also shows a strategy for the synthesis of transition metal nitrides by decomposition of the mixtures of M[M'(NH2)n] (where M is an alkali or alkaline earth metal and M' is a transition metal) and metal hydrides.