Title:
PREPARATION METHOD FOR POROUS CARBON MATERIAL AND USE OF SAME
Document Type and Number:
WIPO Patent Application WO/2019/129009
Kind Code:
A1
Abstract:
The present application provides a preparation method for a porous carbon material, comprising the following steps: (1) soaking cellulose fibers in a 5 wt% to 40 wt% zinc chloride solution for 30-60 mins to partially dissolve the surface of the cellulose fibers; (2) curing the fibers in deionized water for a while, and then placing same into a drying device for drying; and (3) performing carbonization using argon as a protective atmosphere. The present application firstly proposes using a simple and feasible new method, namely, a selective surface dissolution method, to pre-treat cellulose fibers and then carbonizing same at a high temperature, obtains optimal process parameters by investigating the influence of each process parameter on pore structure and electrochemical properties, and prepares a porous activated carbon material having a large specific surface area and having rich pore structures. The porous activated carbon material is prepared into a super capacitor as an independent electrode material (without filling a conductive agent and a binder). The super capacitor has a specific capacitance up to 488 F/g, much higher than that of the existing super capacitor of the same type, and thus has a wide application prospect.
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Inventors:
ZHANG JIANMIN (CN)
HUA QINGSONG (CN)
DAI ZUOQIANG (CN)
ZHANG HONGXIN (CN)
ZOU RONGGUO (CN)
ZHANG JIPENG (CN)
GAO ZHENYUE (CN)
HUA QINGSONG (CN)
DAI ZUOQIANG (CN)
ZHANG HONGXIN (CN)
ZOU RONGGUO (CN)
ZHANG JIPENG (CN)
GAO ZHENYUE (CN)
Application Number:
PCT/CN2018/123612
Publication Date:
July 04, 2019
Filing Date:
December 25, 2018
Export Citation:
Assignee:
UNIV QINGDAO (CN)
International Classes:
H01G11/24; H01G11/34
Foreign References:
| CN108198696A | 2018-06-22 | |||
| CN101397135A | 2009-04-01 | |||
| CN105645410A | 2016-06-08 |
Other References:
DU, XUAN ET AL.: "Effect of Zncl2 Impregnation Concentration on the Microstructure and Electrical Performance of Ramie-based Activated Carbon", IONICS, vol. 22, no. 4, 12 November 2016 (2016-11-12), pages 545 - 553, XP035942721, ISSN: 0947-7047
CUI, LI ET AL.: "Preparation and Properties of Cellulose Porous Material", POLYMER MATERIALS SCIENCE AND ENGINEERING, vol. 29, no. 10, 31 October 2013 (2013-10-31), ISSN: 1000-7555
CUI, LI ET AL.: "Preparation and Properties of Cellulose Porous Material", POLYMER MATERIALS SCIENCE AND ENGINEERING, vol. 29, no. 10, 31 October 2013 (2013-10-31), ISSN: 1000-7555
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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