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Wang, Nuoya, Huang, Xinhua, Zhang, Lei, Hu, Jinsong, Chao, Yimin 
ORCID: https://orcid.org/0000-0002-8488-2690 and Zhao, Ruikun
(2021)
Pyrolysis transformation of ZIF-8 wrapped with polytriazine to nitrogen enriched core-shell polyhedrons carbon for supercapacitor.
Frontiers of Chemical Science and Engineering, 15 (4).
944–953.
ISSN 2095-0179
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Abstract
This work presents a simple effective strategy to synthesize N-doped and shell-controlled carbon nanocages through a package baking approach. A green approach to synthesize core-shell ZIF-8@PTZ nanoparticles involves zinc contained ZIF-8 core wrapped by a N-enriched polytriazine (PTZ). Synthesized core-shell ZIF-8@PTZ nanoparticles are calcinated to further sublime zinc through PTZ shell and washed by HCl, leaving a porous carbon structure. At the meantime, hollow cavities were introduced into N-doped carbon polyhedrons via the sacrifice of ZIF-8 template (noted as ZIF-8@C/N-x). The electrochemical performance of the ZIF-8@C/N-x as supercapacitor electrode has demonstrated high energy density and specific capacitance, as well as a long-term cycleability showing 92% capacitance retention after 10,000 cycles. There is a systematic correlation between micro-/meso-porosity of ZIF-8@C/N-x and their electrochemical performances.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | edlc electrode,core-shell,microporos nano polygons,nitrogen doped carbon,chemical engineering(all) ,/dk/atira/pure/subjectarea/asjc/1500 |
| Faculty \ School: | Faculty of Science > School of Chemistry (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Energy Materials Laboratory |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 25 Aug 2020 00:06 |
| Last Modified: | 18 Oct 2024 23:54 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/76566 |
| DOI: | 10.1007/s11705-020-2005-y |
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