期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 5, 期 6, 页码 4523-4528出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b00947
关键词
Carbon dioxide; Polymeric catalyst; Heterogeneous catalyst; Cooperative catalysis; Cyclic carbonates
资金
- National Science Fundation of China [21403258, 21273227, 21503218]
- Chinese Academy of Sciences [XDB17020400]
- China Postdotoral Science Fundation [2016M590239]
A single-component multifunctional catalyst (denoted as Mg-por/pho@POP) based on a magnesium porphyrin and phosphonium salt-integrated porous organic polymer (POP) was afforded via a solvothermal synthetic technique for cyclic carbonate production which uses epoxides and CO2. In consequence of the cooperative (or synergistic) effect of a phosphonium salt and homogeneously dispersed magnesium porphyrin moiety, which is possibly reinforced through the flexible frameworks and confined microporous structure, this powerful catalyst offered the highest activity of a heterogeneous catalyst within the context of cyclic carbonates synthesis from epoxide and CO2 (turnover frequencies up to 15,600 h(-1)) without the addition of co-catalysts. More surprisingly, very promising turnover numbers (TONs) of 14,400 and 4200 were realized at very mild temperatures of 25 and 40 degrees C. Moreover, Mg-por/pho@POP can be simply recovered and reused at least five times.
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