Hydrazine bisborane as a promising material for chemical hydrogen storage

Hydrazine bisborane as a promising material for chemical hydrogen storage
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肼双硼烷作为一种有前途的化学储氢材料

DOI:
10.1016/j.ijhydene.2011.07.104
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发表时间:
2011-10
期刊:
Int. J. Hydrogen Energy [IF=3.5]
影响因子:
--
通讯作者:
Yu, Xuebin
Yu, Xuebin
中科院分区:
其他
文献类型:
--
作者:
Sun, Weiwei;Gu, Qinfen;Guo, Yanhui;Guo, Zaiping;Liu, Huakun;Yu, Xuebin

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用一种典型的化学法合成了一种很有前途的储氢材料--双硼肼(N2H4(BH3)2,HBB)。HBB表现出相对较低的脱氢温度(约100℃),有效防止任何有害的气体产物,如氨、二硼烷,确认了非常高的放氢纯度>99%。用基辛格方法计算出HBB第一步脱氢的活化能为106.4 kJ/m o l。根据~(11)B核磁共振和FT-IR的结果,确定了HBB的热分解生成了[HBN_2BH]_2二聚体,其中B原子的配位环境位于HBN_2的形成中。
A kind of promising hydrogen storage material-hydrazine bisborane (N2H4(BH3)2, HBB) is synthesized by a typical chemical method. HBB exhibits relatively low dehydrogenation temperature (around 100 °C), effective prevention of any unwanted gaseous products, such as ammonia, diborane, confirming a very high hydrogen release purity of >99%. The activation energy (Ea) of the first-step dehydrogenation of HBB is calculated to be 106.4 kJ/mol using Kissinger’s method. According to the11B NMR and FT-IR results, the thermal decomposition of HBB was determined to produce [HBN2BH]2dimers, in which the coordination environment of B atoms located in the formation of HBN2.
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