标题: A sulfinol-type hydrated eutectic electrolyte for efficient and robust combined CO2 capture and electroreduction
作者: Tong, JS (Tong, Jiasheng); Yang, HQ (Yang, Hangqi); Chen, WR (Chen, Wanru); Chen, ZJ (Chen, Zejun); Li, SZ (Li, Shizhen); Peng, C (Peng, Chuang)
来源出版物: ENERGYCHEM 卷: 7 期: 6 文献号: 100175 DOI: 10.1016/j.enchem.2025.100175 Published Date: 2025 NOV
摘要: Electrolytes play crucial roles in reaction rate and selectivity of CO2 electroreduction (CO2RR). Herein, a commercial CO2 capture medium, i.e., Sulfinol-type hybrid solvent, is employed as electrolyte for efficient and robust CO2RR. The hybrid electrolyte consists of [BMim]Cl, sulfolane and water, acting as the chemical absorbent/ cocatalyst, physical absorbent and diluent respectively. With the combined Sulfinol and deep eutectic features, the electrolyte shows high CO2 uptake rate and capacity, low viscosity and effective water activity regulation. Consequently, the CO2RR exhibits high reaction rate and Faradaic efficiency toward CO (FECO). Typically, high FECO values of over 96% are achieved over a wide potential range from -1.8 to -2.3 V. The robustness of the electrolyte is manifested by its high FECO at high water content and facile regeneration by evaporation of water. This work provides insight into the design of advanced electrolytes for both CO2 capture and electroreduction.
作者关键词: Electrochemical CO 2 reduction; Deep eutectic solvent; 1-Butyl-3-methylimidazolium chloride; Self-dilution; Electrolyte regeneration
地址: [Tong, Jiasheng; Yang, Hangqi; Chen, Wanru; Chen, Zejun; Li, Shizhen; Peng, Chuang] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.
通讯作者地址: Li, SZ; Peng, C (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.
电子邮件地址: [email protected]; [email protected]
影响因子：23.8
