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Boosting the performance of broccoli-like Ni-triazole frameworks through a CNTs conductive-matrix
Kuaibing Wang1, Huijian Wang1, Yang Chu1
1Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University Nanjing 210095 P. R. China wuhua@njau.edu.cn.
Abstract:
Different approaches for the fabrication of CNT-supported Ni-triazole composites, such as room-temperature stirring and hydrothermal treatment for a distinct reaction time has been presented. As a result, various morphologies, MMOF wrapped CNTs, CNTs entangled with an MMOF and CNTs attached on an MMOF, were synthesized and investigated through electrochemical measurements. The as-synthesized CNTs/MMOF-based hybrids, especially for the CNTs/MMOF-8H structure, show a good rate capability after 20 times increase, a superior coulombic efficiency and an excellent long-term cycling stability (more than 98% retained after 2000 cycles). This enhancement can be ascribed to the introduction of the CNT conductive additives, which promote the fast charge-transfer ability of ions and electrons. Even for the other CNTs/MMOF-based composites, the overall electrochemical performances are still superior to those of pristine MMOF electrodes.
