电容去离子
海水淡化
化学
电解
吸附
膜
电解水
水处理
化学工程
电极
环境工程
环境科学
电解质
有机化学
物理化学
工程类
生物化学
作者
Y.-H. Kim,Kexin Tang,Junjun Chang,Ketki Sharma,Sotira Yiacoumi,Richard T. Mayes,Hassina Bilheux,Louis J. Santodonato,Costas Tsouris
标识
DOI:10.1080/01496395.2019.1608243
摘要
Water electrolysis can hinder the operation of capacitive deionization (CDI) and membrane CDI (MCDI). This study is aimed at investigating the overpotential limits of CDI and MCDI (OP-MCDI) for water electrolysis and desalination performance. For sodium chloride concentrations of ~28,460 ppm, MCDI with mesoporous carbon electrodes could be operated at up to 2.4 V without water electrolysis, and the salt-adsorption capacity of the OP-MCDI system at 2.4 V was about two times greater than that of the MCDI at 1.2 V. This study offers an opportunity to extend the applicability of conventional CDI and MCDI systems for desalination of low-salinity solutions.
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