Highly Efficient Synthesis of C2+ Oxygenates from CO Hydrogenation Over Rh–Mn–Li/SiO2 Catalyst: The Effect of TiO2 Promoter

The effect of titanium promotion on the catalytic performance of Rh–Mn–Li catalyst supported on PVP-modified SiO 2 for C 2 + oxygenates synthesis from CO hydrogenation was investigated. The highest selectivity toward C 2 + oxygenates (51.3%) was achieved over the RML/0.5Ti/SiO 2 catalyst. Characteri...

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Bibliographic Details
Published in:Catalysis letters 2018-08, Vol.148 (8), p.2619-2626
Main Authors: Ding, Dan, Yu, Jun, Guo, Qiangsheng, Guo, Xiaoming, Mao, Haifang, Mao, Dongsen
Format: Article
Language:English
Subjects:
Carbon monoxide
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Hydrogenation
Industrial Chemistry/Chemical Engineering
Organometallic Chemistry
Perspective
Physical Chemistry
Promotion
Rhodium
Selectivity
Silicon dioxide
Titanium
Titanium dioxide
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Summary:The effect of titanium promotion on the catalytic performance of Rh–Mn–Li catalyst supported on PVP-modified SiO 2 for C 2 + oxygenates synthesis from CO hydrogenation was investigated. The highest selectivity toward C 2 + oxygenates (51.3%) was achieved over the RML/0.5Ti/SiO 2 catalyst. Characterization results indicates that the addition of Ti promotes the adsorption of geminal CO and the formation of Rh + , which is favorable for the CO insertion into metal-CH x band, and finally increases the selectivity of C 2 + oxygenates. Graphical Abstract The effect of titanium promotion on the catalytic performance of Rh–Mn–Li catalyst supported on PVP-modified SiO 2 for C 2 + oxygenates synthesis from CO hydrogenation was investigated. The highest selectivity toward C 2 + oxygenates (51.3%) was achieved over the RML/0.5Ti/SiO 2 catalyst
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-018-2444-y