Cation-Exchange Membranes with Controlled Porosity in Electrodialysis Application
作者： Jian Li , Junyong Zhu , Shushan Yuan , Jiuyang Lin , Jiangnan Shen
关键词: Analytical chemistry 、 Desalination 、 Electrochemistry 、 Electrodialysis 、 Electrical resistance and conductance 、 Porosity 、 Diffusion 、 Membrane 、 Chemical engineering 、 Contact angle 、 Materials science
摘要: Numerous attempts have been made to develop ion-exchange membranes with low resistance for various applications such as electrodialysis and fuel cells. In this study, the strategies of immersion precipitation dry-casting were combined, control membrane porosity purpose improving physical electrochemical properties membranes. The was tuned using time exposure an elevated-temperature environment. addition controlling balance electrical diffusion caused by concentration gradient, it experimentally shown that can influence IEC water uptake and, thus, further affect resistance. Furthermore, surface hydrophilicity characterized contact angle measurements; results revealed porous more hydrophilic than dense As demonstrated experimental data desalination electrodialysi...
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