介质阻挡放电
催化作用
氨
非热等离子体
纳秒
等离子体
大气压力
氨生产
化学工程
化学
大气压等离子体
原材料
电介质
无机化学
材料科学
有机化学
激光器
物理
光电子学
海洋学
工程类
量子力学
光学
地质学
作者
Xianzhu Xu,Mingliang Sun,Qi Song,Xueping Wu,Chongchong Chen,Qiang Chen,Haibao Zhang
出处
期刊:Plasma Science & Technology
[IOP Publishing]
日期:2024-01-17
标识
DOI:10.1088/2058-6272/ad1fd8
摘要
Abstract Ammonia is one of the most important chemical raw materials in both manufacture and life of human. Traditionally Haber-Bosch method for ammonia synthesis involves high temperature and high pressure conditions, leading to significant energy consumption and environmental pollution. Non-thermal plasma (NTP) is a promising alternative approach to ammonia synthesis at low temperature and atmospheric pressure. In this study, the synergistic effect of nanosecond pulsed dielectric barrier discharge (np-DBD) and Ni-MOF-74 catalyst was investigated in ammonia synthesis by utilizing nitrogen and hydrogen as feedstock. The results demonstrated that the plasma catalytic-synthesis process parameters play a crucial role in the synthesis process of ammonia. The highest ammonia synthesis rate of 5145.16 μmol·g−1·h−1 with an energy efficiency of 1.27 g·kWh−1 was observed in the presence of the Ni-MOF-74 catalyst, which was 3.7 times higher than that without Ni-MOF-74 catalyst. The synergistic effect of Ni-MOF-74 catalyst and nanosecond pulsed plasma was explored by in-situ plasma discharge diagnostics.
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