Synthesis of mesoporous ZIF-8 nanoribbons and their conversion into carbon nanoribbons for high-performance supercapacitors

Xueqing Yang, Wei Chen, Haidong Bian, Tianying Sun, Yangyang Du, Zhenyu Zhang, Wenjun Zhang, Yangyang Li, Xianfeng Chen, Feng Wang

Research output: Contribution to journalArticlepeer-review

Abstract

ZIF-8 nanoribbons with tunable morphology and pore structure were synthesized by using tri-block co-polymer Pluronic F127 as a soft template. The as-synthesized ZIF-8 nanoribbons were converted into carbon nanoribbons by thermal transformation with largely preserved morphology and porosity. The resulting carbon nanoribbons feature both micro- and meso-pores with high
surface areas of over 1000 m2 g-1. In addition, nitrogen-doping in the
carbon nanoribbons was achieved as was confirmed by XPS and EELS measurements. The hybrid carbon nanoribbons provide pseudo-capacitance that promotes electrochemical performance, rendering a high specific capacitance of up to 297 F g-1 at a current density of 0.5 A g-1 in a three-electrode system. A long cycle life was also demonstrated by recording a 90.26% preservation of capacitance after 10, 000 cycles of charge-discharge at a current density of 4.0 A g-1. Furthermore, a symmetrical supercapacitor is
fabricated by employing the carbon nanoribbons, which shows good
electrochemical performance with respect to energy, power and
cycle life.
Original languageEnglish
Pages (from-to)11185-11192
JournalChemistry - A European Journal
Volume24
Issue number43
Early online date28 May 2018
DOIs
Publication statusPublished - 1 Aug 2018

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