The novel Auricularia-like MoS2 2 as binder-free electrodes for enhanced capacitive deionization

Molybdenum disulfide (MoS2) 2 ) has been proven to be an effective and promising electrode material for capacitive deionization (CDI) due to its unique architectures and excellent electrochemical activity. However, MoS2-based 2-based electrodes still suffer from the high contact electrical resistance between MoS2 2 and the current collectors because of the necessity of adding binder during their fabrication. In this work, a flexible MoS2-based 2-based electrode with no binders was successfully fabricated. It was found that the frameworks of stainless-steel mesh with surface treatment could serve as an ideal substrate to provide plenty of active nucleation sites for the growth of MoS2. 2 . Consequently, a novel morphology of MoS2 2 with Auricularia-like architectures was produced. Based on electrochemical impedance spectroscopy (EIS), the charge transfer resistance was reduced to nearly zero after the treatment, highly increasing the transportation of charges inside the electrodes compared to the common MoS2- 2- based electrodes. As a result, the binder-free MoS2-based 2-based electrodes demonstrated a superior desalination performance of 28.76 mg g-1 (1.2 V) for NaCl solution, which was superior to that of common MoS2-based 2-based and many other advanced materials-based electrodes. The novel MoS2-based 2-based electrode not only facilitates the utilization of MoS2 2 in CDI but also paves the way for its application in other electrochemical domains.