Cellulose-Solvent-Assisted, One-Step Pyrolysis to Fabricate Heteroatoms-Doped Porous Carbons for Electrode Materials of Supercapacitors

doi:10.1021/acssuschemeng.8b00589

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	Cellulose-Solvent-Assisted, One-Step Pyrolysis to Fabricate Heteroatoms-Doped Porous Carbons for Electrode Materials of Supercapacitors
	Fan, Peidong 1; Ren, Jia 1,2; Pang, Kanglei 1,2; Cheng, Yu 1; Wu, Xiao 1,3; Zhang, Zhiguo 1; Ren, Junkai 1; Huang, Wei 1,3; Song, Rui 1
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2018-06-01
卷号	6 期号:6 页码:7715-7724
关键词	Cellulose Solvent Waste Newspapers Heteroatoms-doped Porous Carbons Supercapacitors
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b00589
英文摘要	A low-priced, ecofriendly and sustainable strategy to fabricate materials of superior electrochemical property is of paramount importance for the development of supercapacitors (SCs). Herein, heteroatoms-doped porous carbons (HPCs) were prepared from waste newspapers (WNPs) with the assistance of cellulose solvent, i.e., aqueous solution consisting of NaOH, urea, and thiourea (NUT, for short); subsequently, the resultant HPCs were applied as materials for SCs electrodes. Innovatively, the NUT solution acts simultaneously as solvent for WNPs, activating agent, and co-dopants (N, S, and O) in the subsequent preparation of HPCs materials. Interestingly, the porous structure and doping content of HPCs are tunable by changing the related feed ratio between NaOH and WNPs (W-NaOH/W-WNPs = 0.5, 1.0, and 1.5), along with the pyrolysis temperature (600, 700, and 800 degrees C). The appropriate porosity along with the surface doped by heteroatoms (N, S, and O) of the obtained HPCs result in superior electrochemical performance endowing them with potential for high performance SCs. CS3-T800 exhibits a maximum specific capacitance of 308 F g(-1) (1 A g(-1)) and excellent cycle capability (94.0% of capacitance retention after 5000 charge/discharge cycles) in a three-electrode system. Moreover, the CS3-T800-based symmetric SCs exhibit a energy density of 10.48 Wh kg(-1) and power density of 250 W kg(-1), all making it a promising electrode material for SCs. The enhancement mechanism for the porous carbon electrode reveals that rationally designed mesopores and micropores are more critical in porous electrode performance. This work hereby provides an excellent paradigm to produce highly porous and conductive carbons from biomass like WNPs for various energy-storage applications.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000434491600058
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42873]
专题	中国科学院化学研究所
通讯作者	Huang, Wei; Song, Rui
作者单位	1.Univ Chinese Acad Sci, Sch Chem Sci, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, SDC, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fan, Peidong,Ren, Jia,Pang, Kanglei,et al. Cellulose-Solvent-Assisted, One-Step Pyrolysis to Fabricate Heteroatoms-Doped Porous Carbons for Electrode Materials of Supercapacitors[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(6):7715-7724.
APA	Fan, Peidong.,Ren, Jia.,Pang, Kanglei.,Cheng, Yu.,Wu, Xiao.,...&Song, Rui.(2018).Cellulose-Solvent-Assisted, One-Step Pyrolysis to Fabricate Heteroatoms-Doped Porous Carbons for Electrode Materials of Supercapacitors.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(6),7715-7724.
MLA	Fan, Peidong,et al."Cellulose-Solvent-Assisted, One-Step Pyrolysis to Fabricate Heteroatoms-Doped Porous Carbons for Electrode Materials of Supercapacitors".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.6(2018):7715-7724.