Enhanced dechlorination of an enzyme-catalyzed electrolysis system by ionic liquids: Electron transfer, enzyme activity and dichloromethane diffusion

Wu, Meng; Hu, Jun; Wu, Yuexin; Tang, Yunping; Zhang, Yan; Guan, Yue; Lou, Zimo; Yu, Zhiliang; Yu, Jianming

doi:10.1016/j.chemosphere.2021.130913

Cited by 6 publications

(1 citation statement)

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“…In particular, the use of ILs as electrolytes in water electrolysis has been demonstrated to promote hydrogen production successfully [34,35]. This is because they can enhance electron transfers and intermolecular interactions and also change surface accessibility and local concentration of reactants on electrode surface [33,34,36]. Considering these benefits of ILs, this study proposes a novel electrolysis process for biodiesel production that utilizes ILs as supporting electrolytes without any additional catalyst.…”

Section: Introductionmentioning

confidence: 99%

Biodiesel Production through Electrolysis Using an Ionic Liquid, 1-Ethyl-3-Methylimidazolium Chloride as a Supporting Electrolyte

Aregawi

Nguyen

et al. 2023

International Journal of Energy Research

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Electrolysis is a promising approach for biodiesel production. However, low electrical conductivity of a reaction mixture results in a low reaction rate. Thus, this study developed a novel catalyst-free electrolysis process using an ionic liquid as a supporting electrolyte for biodiesel production. Various ionic liquids were assessed, and 1-ethyl-3-methylimidazolium chloride ([Emim]Cl) exhibited the highest electrical conductivity (4.59 mS/cm) and the best electrolytic performance for transesterification. Electrolysis in the presence of [Emim]Cl was subsequently optimized using response surface methodology to maximize biodiesel yield. A maximum biodiesel yield of 97.76% was obtained under the following optimal reaction conditions: electrolysis voltage, 19.42 V; [Emim]Cl amount, 4.43% ( w / w ); water content, 1.62% ( w / w ); methanol to oil molar ratio, 26.38 : 1; and reaction time, 1 h. Notably, [Emim]Cl could be efficiently reused for at least three cycles with a corresponding biodiesel yield of 94.81%. Moreover, the properties of the synthesized biodiesel complied with EN and ASTM standards. The findings of this study indicate that catalyst-free electrolysis using [Emim]Cl as a supporting electrolyte is an eco-friendly and efficient method for biodiesel production.

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