Designed synthesis of SiC nanowire-derived carbon with dual-scale nanostructures for supercapacitor applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Xingli Zou
  • Li Ji
  • Kai Zheng
  • Zhongya Pang
  • Xionggang Lu

Detail(s)

Original languageEnglish
Pages (from-to)12724–12732
Number of pages9
Journal / PublicationJournal of Materials Chemistry A
Volume6
Issue number26
Online published5 Jun 2018
Publication statusPublished - 14 Jul 2018

Abstract

The preparation of one-dimensional carbon materials with complex dual-scale nanostructures for supercapacitor applications still remains a challenge. Herein we report a simple strategy for electrosynthesis of silicon carbide nanowire (SiC NW)-derived carbon with dual-scale nanostructures for high performance supercapacitors. This method is highlighted by using solid oxide membrane technology to directly convert powdered silicon dioxide/carbon precursors into SiC NWs, and then the synthesized SiC NWs are further transformed into mesoporous silicon carbide-derived carbon nanowires (SiC-CDC NWs) via a subsequent in situ molten salt electrochemical etching process. Benefitting from their dual-scale nanostructures, these SiC-CDC NWs exhibit highly reversible specific capacitance of 260 F g−1 at 1 A g−1 and good cyclability (97.9% after 5000 cycles) in 6 M KOH aqueous solution without the need for doping the SiC-CDC NWs. It is suggested that this process is a promising general approach for synthesizing CDC materials with dual-scale nanostructures for energy storage applications.

Citation Format(s)

Designed synthesis of SiC nanowire-derived carbon with dual-scale nanostructures for supercapacitor applications. / Zou, Xingli; Ji, Li ; Hsu, Hsien-Yi; Zheng, Kai; Pang, Zhongya; Lu, Xionggang.

In: Journal of Materials Chemistry A, Vol. 6, No. 26, 14.07.2018, p. 12724–12732.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review