Effect of nitrogen co-doping with ruthenium on the catalytic performance of Ba/Ru–N-MC catalysts for ammonia synthesis

Nitrogen co-doping with ruthenium mesoporous carbons (Ru–N-MC) was prepared by co-impregnation of sucrose and urea on a RuCl(3)/SiO(2) template followed by a thermal carbonization process. The turnover frequency (TOF) of the Ba/Ru–N-MC catalyst in ammonia synthesis is 0.16 s(−1) under reaction condi...

Descripción completa

Detalles Bibliográficos
Autores principales: Ma, Yongcheng, Lan, Guojun, Wang, Xiaolong, Zhang, Geshan, Han, Wenfeng, Tang, Haodong, Liu, Huazhang, Li, Ying
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9066922/
https://www.ncbi.nlm.nih.gov/pubmed/35518881
http://dx.doi.org/10.1039/c9ra03097b
Descripción
Sumario:Nitrogen co-doping with ruthenium mesoporous carbons (Ru–N-MC) was prepared by co-impregnation of sucrose and urea on a RuCl(3)/SiO(2) template followed by a thermal carbonization process. The turnover frequency (TOF) of the Ba/Ru–N-MC catalyst in ammonia synthesis is 0.16 s(−1) under reaction conditions of 400 °C, pressure of 10 MPa and space velocity of 10 000 h(−1). The superior catalytic performance of the Ba/Ru–N-MC is proposed to originate from the strong metal-support interaction between Ru nanoparticles (NPs) and carbon support. In addition to the activity, the Ba/Ru–N-MC catalyst exhibits a long-term stability for 35 h without significant deactivation.

Ejemplares similares