A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application

In the present study, a hemp straw activated carbon (HSAC) was simply prepared by hydrothermal process followed by a pre-oxidization and carbonization by KOH solid-state activation. The as-synthesized HSAC shows abundant porosity, which is designed to be beneficial to the fast transportation of elec...

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Main Authors:	Jiang, Xia, Shi, Gaofeng, Wang, Guoying, Mishra, Puranjan, Liu, Chao, Dong, Yucan, Zhang, Peng, Tian, Haoqi, Liu, Yanrong, Wang, Zhao, Zhang, Qi, Zhang, Hongquan
Format:	Article
Language:	English
Published:	Institute for Ionics 2019
Subjects:	QD Chemistry TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/25385/ http://umpir.ump.edu.my/id/eprint/25385/ http://umpir.ump.edu.my/id/eprint/25385/ http://umpir.ump.edu.my/id/eprint/25385/1/A%20hydrothermal%20carbonization%20process%20for%20the%20preparation%20.pdf

id	ump-25385
recordtype	eprints
spelling	ump-253852019-10-25T03:51:16Z http://umpir.ump.edu.my/id/eprint/25385/ A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application Jiang, Xia Shi, Gaofeng Wang, Guoying Mishra, Puranjan Liu, Chao Dong, Yucan Zhang, Peng Tian, Haoqi Liu, Yanrong Wang, Zhao Zhang, Qi Zhang, Hongquan QD Chemistry TP Chemical technology In the present study, a hemp straw activated carbon (HSAC) was simply prepared by hydrothermal process followed by a pre-oxidization and carbonization by KOH solid-state activation. The as-synthesized HSAC shows abundant porosity, which is designed to be beneficial to the fast transportation of electrolyte. The preparation conditions for HSACs under different mass ratios of KOH:precursors were optimized, and the sample obtained by a mass ratio of 4:1 showed an outstanding capacitive property (specific capacitance of 279 F g−1at 0.5 A g−1 current density). Besides, the capacitance of 91.6% was retained after 5000 charge-discharge cycles under 2 A g−1 current density. The resulting symmetrical supercapacitor obtained by using the HSAC electrodes exhibited an excellent electrochemical performance, which successfully illuminated a LED light. The HSAC has great potentials as electrode material for high-performance supercapacitor, which opens a new way for value increment of natural products. Institute for Ionics 2019-07-01 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25385/1/A%20hydrothermal%20carbonization%20process%20for%20the%20preparation%20.pdf Jiang, Xia and Shi, Gaofeng and Wang, Guoying and Mishra, Puranjan and Liu, Chao and Dong, Yucan and Zhang, Peng and Tian, Haoqi and Liu, Yanrong and Wang, Zhao and Zhang, Qi and Zhang, Hongquan (2019) A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application. Ionics, 25 (7). pp. 3299-3307. ISSN 0947-7047 https://doi.org/10.1007/s11581-019-02850-8 https://doi.org/10.1007/s11581-019-02850-8
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry TP Chemical technology
spellingShingle	QD Chemistry TP Chemical technology Jiang, Xia Shi, Gaofeng Wang, Guoying Mishra, Puranjan Liu, Chao Dong, Yucan Zhang, Peng Tian, Haoqi Liu, Yanrong Wang, Zhao Zhang, Qi Zhang, Hongquan A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
description	In the present study, a hemp straw activated carbon (HSAC) was simply prepared by hydrothermal process followed by a pre-oxidization and carbonization by KOH solid-state activation. The as-synthesized HSAC shows abundant porosity, which is designed to be beneficial to the fast transportation of electrolyte. The preparation conditions for HSACs under different mass ratios of KOH:precursors were optimized, and the sample obtained by a mass ratio of 4:1 showed an outstanding capacitive property (specific capacitance of 279 F g−1at 0.5 A g−1 current density). Besides, the capacitance of 91.6% was retained after 5000 charge-discharge cycles under 2 A g−1 current density. The resulting symmetrical supercapacitor obtained by using the HSAC electrodes exhibited an excellent electrochemical performance, which successfully illuminated a LED light. The HSAC has great potentials as electrode material for high-performance supercapacitor, which opens a new way for value increment of natural products.
format	Article
author	Jiang, Xia Shi, Gaofeng Wang, Guoying Mishra, Puranjan Liu, Chao Dong, Yucan Zhang, Peng Tian, Haoqi Liu, Yanrong Wang, Zhao Zhang, Qi Zhang, Hongquan
author_facet	Jiang, Xia Shi, Gaofeng Wang, Guoying Mishra, Puranjan Liu, Chao Dong, Yucan Zhang, Peng Tian, Haoqi Liu, Yanrong Wang, Zhao Zhang, Qi Zhang, Hongquan
author_sort	Jiang, Xia
title	A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
title_short	A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
title_full	A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
title_fullStr	A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
title_full_unstemmed	A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
title_sort	hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application
publisher	Institute for Ionics
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25385/ http://umpir.ump.edu.my/id/eprint/25385/ http://umpir.ump.edu.my/id/eprint/25385/ http://umpir.ump.edu.my/id/eprint/25385/1/A%20hydrothermal%20carbonization%20process%20for%20the%20preparation%20.pdf
first_indexed	2023-09-18T22:38:57Z
last_indexed	2023-09-18T22:38:57Z
_version_	1777416784979165184

A hydrothermal carbonization process for the preparation of activated carbons from hemp straw : an efficient electrode material for supercapacitor application

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