Synthesis of Mixture Salt Activated Porous Carbon from Scaphium Scaphigerum and Its Performance as Super Capacitor Electrode Material

doi:10.11944/j.issn.1000-0518.2015.05.140300

Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (5): 591-596.DOI: 10.11944/j.issn.1000-0518.2015.05.140300

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Synthesis of Mixture Salt Activated Porous Carbon from Scaphium Scaphigerum and Its Performance as Super Capacitor Electrode Material

HU Xiaozhou, WANG Jing^*, TANG Jing

Lanzhou Petrochemical College of Vocational Technology, Lanzhou 730060, China

Received:2014-09-01 Revised:2014-12-03 Accepted:2015-01-19 Published:2015-05-05 Online:2015-05-05
Contact: WANG Jing
Supported by:
Supported by the Science and Research Project of the Education Department of Gansu Province(No.0615B-01)

Abstract

Abstract:

A series of porous carbons(PC-1, PC-2 and PC-3) with microporous and suitable mesoporous was successfully prepared by pyrolysis in the absence(PC-1) and existence of ZnCl₂(PC-2), or ZnCl₂/LiCl(PC-3) activators utilizing soaked scaphium scaphigerum as the precursor. The specific capacitance of PC-1, PC-2 and PC-3 electrodes at the current density of 0.5 A/g in three-electrode system is 69, 132 and 228 F/g, respectively. Moreover, a specific capacitance up to 166 F/g at the current density of 10 A/g indicates a good rate performance of PC-3. These desirable results reveal that the porous carbons prepared from scaphium scaphigerum by ZnCl₂/LiCl activation can be used as high performance electrode materials in supercapacitor.

Key words: porous carbon, salt activation, supercapacitor

CLC Number:

HU Xiaozhou, WANG Jing, TANG Jing. Synthesis of Mixture Salt Activated Porous Carbon from Scaphium Scaphigerum and Its Performance as Super Capacitor Electrode Material[J]. Chinese Journal of Applied Chemistry, 2015, 32(5): 591-596.

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Synthesis of Mixture Salt Activated Porous Carbon from Scaphium Scaphigerum and Its Performance as Super Capacitor Electrode Material

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