氨
氢
化学
分解
大气压力
热分解
停留时间(流体动力学)
制氢
分析化学(期刊)
氨生产
体积流量
电极
无机化学
环境化学
热力学
物理化学
有机化学
工程类
岩土工程
地质学
物理
海洋学
作者
Mao Akiyama,Keigo Aihara,Tomiko Sawaguchi,Masahiko Matsukata,Masakazu Iwamoto
标识
DOI:10.1016/j.ijhydene.2018.06.022
摘要
The plasma decomposition of ammonia was studied as a function of applied voltage/power, residence time including length of an inner electrode and flow rate of reactant gases, partial pressure of ammonia, and amount and the metal species of the inner electrodes. The ammonia decomposition rates were in excellent agreement with the hydrogen production rates and no hydrazine production was detected, indicating the clean decomposition of ammonia in the current system. The decomposition rates were dependent on the applied power and the residence time and independent of metal species of the inner electrodes, in contrast to the strong dependence of the ammonia synthesis reaction on the metal species. A hydrogen yield of 100% was achieved with an applied power of approximately 50 W and a residence time of 1.2 s at ambient temperature and atmospheric pressure, with an applied voltage of 5 kV and a frequency of 50 kHz.
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