Dialkylimidazolium ionic liquids as electrolytes for hydrogen production from water electrolysis

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• 作者：Roberto F. de Souza ; Janine C. Padilha ; Reinaldo S. Gonç ; alves and Joë ; lle Rault-Berthelot
• 关键词：Ionic liquid ; Hydrogen production ; Electrolyte ; BMI · ; BF₄ ; BMI · ; PF₆
• 刊名：Electrochemistry Communications
• 出版年：2006
• 出版时间：February 2006
• 年：2006
• 卷：8
• 期：2
• 页码：211-216
• 全文大小：193 K

文摘

Imidazolium ionic liquids (ILs) such as BMI · BF₄ and BMI · PF₆ were studied by cyclic voltammetry (CV). BMI · BF₄ was used as an electrolyte for hydrogen production through water electrolysis. The system using this ionic liquid in a conventional electrochemical cell with platinum electrodes at room temperature and atmospheric pressure gives current densities (j) higher than 20 mA cm⁻² and efficiencies of more than 94.5 % . The catalytic activity of the electrode surface was not affected during the electrolyses mainly due to the chemical stability of the IL.