标题：Preparation and electrochemical performance of modified Ti3C2Tx/polypyrrole composites
作者：Cao, J. ;Han, Y. ;Zheng, X. ;Wang, Q.
作者机构：[Cao, J. ;Han, Y. ;Zheng, X. ;Wang, Q. ] School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao; Shandong; 更多
来源：Journal of Applied Polymer Science
摘要：MXenes with a large surface area have been widely studied to improve the pseudocapacitance of electrode materials by combining conductive polymer materials. In this article, a superficial strategy to enhance the electrochemical properties by in situ polymerization of a pyrrole monomer between the Ti3C2Tx layers modified with 1,5-naphthalene disulfonic acid (NA) and cetyltrimethylammonium bromide (CTAB) was investigated. It is found that polypyrrole (PPy) and Ti3C2Tx can be combined through strong interactions between each other, and the specific capacitance of the modified Ti3C2Tx/PPy composite was increased to a maximum value of 437 F g−1, which was more than thrice higher than that of pure PPy. The composite also exhibited good cycling performance (76% capacitance retention after 1000 cycles). Moreover, owing to the synergistic effect between the PPy and Ti3C2Tx layers, the composite provided better electron or ion transfer and surface redox processes than that of pure PPy, which indicated that this composite can be used as a promising electrode material for supercapacitors. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47003.
© 2018 Wiley Periodicals, Inc.