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- Title
Preparation and electrochemical characteristics of metal–organic framework [Zn (NH<sub>2</sub>-bdc) (4,4′-bpy)]-derived porous carbon.
- Authors
Chen, Xinguo; Wang, Pitao; Chen, Xiaoyi; Zhang, Qingxiang; Zhang, Jianqiang; Luo, Heming
- Abstract
Porous carbon is one of the favorable materials for electrodes in supercapacitors owing to its huge particular area of the surface, high intensity, and stable characteristics of chemistry. The metal–organic framework [Zn (NH2-bdc) (4,4′-bpy)] was synthesized using the hydrothermal method. The porous carbon ZNBC-T-A was synthesized through the chemical activation of ZnCl2. Further, whether the micromorphology and electrochemical characteristics of porous carbon ZNBC-T-A are related to the carbonization temperature and ZnCl2 activator ratio was investigated. The results showed that the porous carbon ZNBC-700-1:3 had a hive-like architecture with a particular area of the surface of 2078 m2 g−1. The activator ZnCl2 entered the pores of the precursor as a template, which prevented the pores from collapsing. This template served as a template agent. When the current density was 1.0 A g−1, the porous carbon ZNBC-700-1:3 exhibited a specific capacitance of 210.6 F g−1. The retention of capacitance was 90.5% after 5000 repetitions, while coulomb efficiency was kept at nearly 100%.
- Publication
Journal of Materials Science: Materials in Electronics, 2023, Vol 34, Issue 5, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-023-09960-0