Plasma-catalytic synthesis of ammonia over Ru-based catalysts: Insights into the support effect

被引：32

作者：

Zhu, Xinbo ^{[1
]}

Liu, Jin ^{[1
]}

Hu, Xueli ^{[1
]}

Zhou, Zijian ^{[2
]}

Li, Xinbao ^{[1
]}

Wang, Weitao ^{[3
]}

Wu, Renbing ^{[4
]}

Tu, Xin ^{[3
]}

机构：

[1] Ningbo Univ, Fac Maritime & Transportat, Ningbo 315211, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China

[3] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3GJ, England

[4] Fudan Univ, Dept Mat Sci, 220 Handan Rd, Shanghai 200433, Peoples R China

来源：

JOURNAL OF THE ENERGY INSTITUTE | 2022年 / 102卷

基金：

英国工程与自然科学研究理事会; 中国国家自然科学基金;

关键词：

Ammonia synthesis; Plasma catalysis; Non-thermal plasma; Dielectric barrier discharge; Ru-based catalysts; PEROVSKITE-TYPE BAZRO3; NONTHERMAL PLASMA; ATMOSPHERIC-PRESSURE; CONVERSION; DISCHARGE;

D O I：

10.1016/j.joei.2022.02.014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this work, we have investigated the effect of different supports (activated carbon (AC), alpha-Al2O3, ZSM-5 and SiO2) on the plasma-catalytic synthesis of ammonia (NH3) from N2 and H2 over Ru-based catalysts in a dielectric barrier discharge (DBD) plasma reactor. Compared with the NH3 synthesis using plasma alone, the presence of the Ru-based catalysts in the DBD reactor significantly enhanced the NH3 production and energy yield by 163%- 387.6% with a sequence of Ru/AC > Ru/ZSM-5 > Ru/alpha-Al2O3 > Ru/SiO2. The effect of different operating parameters on the plasma-catalytic NH3 synthesis over Ru/AC was also examined. N2 adsorption-desorption experiment, X-ray diffraction analysis and temperature-programmed desorption of CO2 were performed to get insights into the structure-performance relationships between the plasma-catalytic NH3 synthesis and Ru-based catalysts with different supports. Both textural properties and the basicity of the Ru/AC catalyst contributed to the enhanced NH3 production in the hybrid plasma-catalytic system.

引用

页码：240 / 246

页数：7