Developing Efficient, Binder-Free 3d Porous Ti3c2tx-Mxene Electrodes for Enhanced Capacitive Deionization Towards Desalination
DESALINATION（2024）
Univ Jinan
Abstract
Research and design of high-performance Faraday electrode have always been a key to enhance the desalination performance of membrane capacitive deionization. This study developed a binder-free 3D porous Ti3C2Tx-MXene electrode by depositing Ti3C2Tx-MXene nanosheets uniformly onto the graphite electrodes through electrophoretic deposition, followed by a straightforward liquid-nitrogen freezing and vacuum drying. Uniforminterconnected and conductive network structure of the electrode provided abundant active sites and promoted efficient ion diffusion and transport rate. High pseudocapacitance (287 F/g) and large surface area (16.4 m2 g- 1) of the 3D porous electrode led to excellent desalination performance (59 mg g-1) and rapid desalination rate (0.55 mg g-1 s- 1), substantially outperforming the conventional coated electrodes. This research provided technical support for the rapid development of capacitive deionization technology towards high-efficient desalination.
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Key words
Membrane capacitive deionization,Electrophoretic deposition,Desalination
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