Effects of preparation methods on Ru-based catalysts for CO hydrogenation to olefins
-
作者
Li, Jiaqi; Zhou, Xuan; Shen, Huachen; Li, Ruitao; Lin, Tiejun; An, Yunlei; Zhong, Liangshu
-
刊物名称
APPLIED CATALYSIS A-GENERAL
-
年、卷、文献号
2025, ,
-
关键词
Li, Jiaqi; Zhou, Xuan; Shen, Huachen; Li, Ruitao; Lin, Tiejun; An, Yunlei; Zhong, Liangshu
-
摘要
The influence of impregnation sequences on the structure and performance of the Ru-based catalysts for olefins synthesis from syngas via Fischer-Tropsch reaction (FTO) was investigated. Among the catalysts studied, Na-Ru/ SiO2 (Na was impregnated before Ru) exhibited the highest CO conversion (43.5 %) and olefins yield (33.9 %). In contrast, Ru-Na/SiO2 (Ru was impregnated before Na) showed the lowest CO conversion (26.6 %) and olefins yield (19.8 %). Characterization analysis indicated that Na-Ru/SiO2 exhibited higher Ru dispersion. In addition, the structural configuration of Na-Ru/SiO2 was found to enhance CO adsorption capabilities to create a C*-rich localized chemical environment, thereby increasing catalytic activity and olefins production. This study demonstrates a straightforward and effective approach to optimize Ru utilization for the design of Ru-based FTO catalysts.
