A Biomass-Ligand-Based Ru(III) Complex as a Catalyst for Cycloaddition of CO2 and Epoxides to Cyclic Carbonates and a Study of the Mechanism

被引：6

作者：

Mao, Haifang ^{[1
]}

Guo, Manli ^{[1
]}

Fu, Hongqing ^{[1
]}

Yin, Kun ^{[2
]}

Jin, Miaomiao ^{[1
]}

Wang, Chaoyang ^{[1
]}

Zhao, Yun ^{[1
]}

Dong, Zhenbiao ^{[1
]}

Liu, Jibo ^{[1
]}

机构：

[1] Shanghai Inst Technol, Sch Chem & Environm Engn, 100 Haiquan Rd, Shanghai, Peoples R China

[2] Fuyang Normal Univ, Sch Chem & Mat Engn, Anhui Prov Key Lab Degradat & Monitoring Pollut En, 100 West Qinghe Rd, Fuyang 236037, Anhui, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2023年 / 26卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Carbon dioxide; Cyclic carbonates; Epoxides; Ruthenium; Structure elucidation; METAL-ORGANIC FRAMEWORKS; EFFICIENT CATALYSTS; ALUMINUM CATALYST; COUPLING REACTION; DIOXIDE; CONVERSION; PORPHYRIN; FIXATION; CAPTURE; COPOLYMERIZATION;

D O I：

10.1002/ejic.202200624

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Aiming highly efficient conversion of greenhouse gas CO2 to cyclic carbonates, a biomass Ru(III) Schiff base complex catalyst (SalRu) was constructed by employing a derivative of Lignin degradation (5-aldehyde vanillin). The SalRu catalyst had a remarkable conversion for epoxides into corresponding cyclic carbonates even at atmospheric pressure of CO2 without the presence of co-catalyst. As the condition at 120 degrees C and 2 MPa CO2 the conversion reached to 94 % with selectivity at 99 % after 8 h. 32 % cyclic carbonate production was obtained even under 0.2 MPa CO2 pressure. The epoxide activation and ring opening, CO2 insertion and cyclic carbonate formation were illuminated explicitly through the of characteristic absorption peaks changing, which further providing direct and visual evidence for the mechanism proposing. This study has important theoretical significance for the comprehensive utilization of environmental pollutants and energy.

引用

页数：9