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

ABSTRACT: Nitrogen co-doping with ruthenium mesoporous carbons (Ru-N-MC) was prepared by co-impregnation of sucrose and urea on a RuCl₃/SiO₂ 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.

SUBMITTER: Ma Y

PROVIDER: S-EPMC9066922 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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

Ma Yongcheng Y Lan Guojun G Wang Xiaolong X Zhang Geshan G Han Wenfeng W Tang Haodong H Liu Huazhang H Li Ying Y

RSC advances 20190716 38

Nitrogen co-doping with ruthenium mesoporous carbons (Ru-N-MC) was prepared by co-impregnation of sucrose and urea on a RuCl3/SiO2 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 stron ...[more]

PMID: 35518881

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