Electrochemical synthesis of dimethyl carbonate from methanol, CO2 and propylene oxide in an ionic liquid

In the one compartment electrochemical cell equipped with platinum electrodes electrochemical fixation carbon dioxide was conducted under ambient conditions. Ionic liquid BMimBr is supporting electrolyte. The aimed product dimethyl carbonate was electrosynthesized in a dialkylimidazolium ionic liquids-propylene oxide-methanol system under normal temperature and pressure. The result indicated that the highest yield of 37.8 % was obtained in the condition of working temperature 30 °C, electrolytic voltage 5.5 V, the mass of CH3OH 0.484 mol, propylene oxide 0.052 mol and bmimBr 0.059 mol.

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Efficient Activation of Dimethyl Carbonate to Synthesize Bio-based Polycarbonate by Eco-friendly Amino Acid Ionic Liquid Catalyst

Applied Catalysis A General ◽

10.1016/j.apcata.2021.118111 ◽

2021 ◽

pp. 118111

Author(s):

Wenjuan Fang ◽

Yaqin Zhang ◽

Zifeng Yang ◽

Zhencai Zhang ◽

Fei Xu ◽

...

Keyword(s):

Ionic Liquid ◽

Amino Acid ◽

Dimethyl Carbonate ◽

Amino Acid Ionic Liquid

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One-Pot Synthesis of Dimethyl Carbonate over a Binary Catalyst of an Ionic Liquid and an Alkali Carbonate under Low Pressure

ACS Omega ◽

10.1021/acsomega.1c01395 ◽

2021 ◽

Author(s):

Kai Liu ◽

Chun Liu

Keyword(s):

Ionic Liquid ◽

Dimethyl Carbonate ◽

Low Pressure ◽

One Pot ◽

One Pot Synthesis ◽

Alkali Carbonate ◽

Binary Catalyst

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Electrochemical Synthesis and Characterization of Ni–P Alloy Coatings from Eutectic–Based Ionic Liquid

Journal of The Electrochemical Society ◽

10.1149/2.012211jes ◽

2012 ◽

Vol 159 (11) ◽

pp. D642-D648 ◽

Cited By ~ 47

Author(s):

Yihui You ◽

Changdong Gu ◽

Xiuli Wang ◽

Jiangping Tu

Keyword(s):

Ionic Liquid ◽

Electrochemical Synthesis ◽

Synthesis And Characterization

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Tetracarboxyl-Functionalized Ionic Liquid: Synthesis and Catalytic Properties

Australian Journal of Chemistry ◽

10.1071/ch14720 ◽

2015 ◽

Vol 68 (10) ◽

pp. 1513 ◽

Cited By ~ 3

Author(s):

Miaona Feng ◽

Guoying Zhao ◽

Hongling Gao ◽

Suojiang Zhang

Keyword(s):

Ionic Liquid ◽

Catalytic Activity ◽

Ionic Liquids ◽

Propionic Acid ◽

Propylene Carbonate ◽

Propylene Oxide ◽

High Stability ◽

Ammonium Acetate ◽

Catalytic Properties ◽

Potential Applications

Novel tetracarboxyl-functionalized 2,2′-biimidazolium-based ionic liquids (ILs) with different anions were synthesized in two steps from readily available and sustainable starting materials including ammonium acetate, glyoxal, and halogenated propionic acid. The functionalized IL exhibited higher catalytic activity towards the cycloaddition of CO2 to terminal epoxides. With propylene oxide as a substrate, the optimum yield of propylene carbonate reached 82.7 % at an initial CO2 pressure of 2.0 MPa for 4 h at 140°C. Moreover, the functionalized IL catalyst displayed a high stability and can be reused for at least five cycles without obvious loss of catalytic activity. The results provide a simple and economical way to synthesize multi-functionalized imidazolium-based ILs with versatile potential applications.

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