排序方式: 共有4条查询结果,搜索用时 0 毫秒
1
1.
Wang Guishuo Luo Ran Yang Chengsheng Song Jimin Xiong Chuanye Tian Hao Zhao Zhi-Jian Mu Rentao Gong Jinlong 《中国科学:化学(英文版)》2019,62(12):1710-1719
Science China Chemistry - Metal oxide-promoted Rh-based catalysts have been widely used for CO2 hydrogenation, especially for the ethanol synthesis. However, this reaction usually suffers low CO2... 相似文献
2.
3.
Chengsheng Yang Sihang Liu Yanan Wang Jimin Song Guishuo Wang Shuai Wang Zhi‐Jian Zhao Rentao Mu Jinlong Gong 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(33):11364-11369
Identification of the active structure under reaction conditions is of great importance for the rational design of heterogeneous catalysts. However, this is often hampered by their structural complexity. The interplay between the surface structure of Co3O4 and the CO2 hydrogenation is described. Co3O4 with morphology‐dependent crystallographic surfaces presents different reducibility and formation energy of oxygen vacancies, thus resulting in distinct steady‐state composition and product selectivity. Co3O4‐0 h rhombic dodecahedra were completely reduced to Co0 and CoO, which presents circa 85 % CH4 selectivity. In contrast, Co3O4‐2 h nanorods were partially reduced to CoO, which exhibits a circa 95 % CO selectivity. The crucial role of the Co3O4 structure in determining the catalytic performance for higher alcohol synthesis over CuCo‐based catalysts is demonstrated. As expected, Cu/Co3O4‐2 h shows nine‐fold higher ethanol yield than Cu/Co3O4‐0 h owing to the inhibition for methanation. 相似文献
4.
1