Integrated Carbon Nanotube and Ketoenamine-Linked Covalent Organic Framework with Positive Charge Structure as
Chan Yao1, Haoyu Zhao1, Qiushi Liu1
1Key Laboratory of Preparation and Applications of Environmental Friendly Materials, Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education (Jilin Normal University), Ministry of Education, Changchun, 130103, China.
Abstract:
A series of composite materials, ETB@CNT (ETB@CNT10, ETB@CNT20, ETB@CNT30, ETB@CNT40, ETB@CNT50) with different carbon nanotubes (CNTs) contents are successfully prepared by using one-pot method. Compared with the pure ET-B-COF, which is a ketoenamine-linked covalent organic framework (COF) with a positive charge structure, CNTs can effectively improve the electrochemical performance of ET-B-COF, and the specific capacitance increased with the increase of the mass of carbon nanotubes added during the preparation process. Among them, ETB@CNT40 exhibits the best electrochemical performance (37.6 F g-1) at a current density of 1 A g-1. This study indicates that the simultaneous introduction of CNTs into COFs can significantly improve the electrochemical performance of ketoenamine-linked COFs materials.
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