Effect of carboxylic acid groups on the supercapacitive performance of functional carbon frameworks derived from bacterial cellulose

doi:10.1016/j.cclet.2017.08.013

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	Effect of carboxylic acid groups on the supercapacitive performance of functional carbon frameworks derived from bacterial cellulose
	Zhang, Tianyun 1,2,3; Lang, Junwei 3; Liu, Li 3; Liu, Lingyang 3; Li, Hongxia 3; Gu, Yipeng 3; Yan, Xingbin 3; Ding, Xin 1
刊名	CHINESE CHEMICAL LETTERS
	2017-12
卷号	28 期号:12 页码:2212-2218
关键词	Bacterial cellulose Carboxylic acid groups TEMPO-meditated oxidation Pseudocapacitance Supercapacitor Rate capability
ISSN号	1001-8417
DOI	10.1016/j.cclet.2017.08.013
英文摘要	Three-dimensional (3D) carbonaceous materials derived from bacterial cellulose (BC) has been introduced as electrode for supercapacitors in recent. Here, we report a simple strategy for the synthesis of functional carbon frameworks through 2,2,6,6-tetramethylpilperidine 1-oxyl radical (TEMPO) mediated oxidation of bacterial cellulose (BC) followed by carbonization. TEMPO-mediated oxidation can efficiently convert the hydroxyls on the surface of BC to carboxylate groups to improve electrochemical activity. Because of its high porosity, good hydrophilicity, rich oxygen groups, and continuous ion transport in-between sheet-like porous network, the TEMPO-oxidized BC delivers a much higher gravimetric capacitance (137.3 F/g) at low annealing temperature of 500 degrees C than that of pyrolysis BC (31 F/g) at the same annealing temperature. The pyrolysis modified BC obtained at 900 degrees C shows specific capacitance (160.2 F/g), large current stability and long-term stability (84.2% of its initial capacitance retention after 10,000 cycles). (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
资助项目	plan of Youth Science foundations of Gansu Province[1610RJYA019]
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000423638500006
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33009]
专题	机电工程学院石油化工学院
通讯作者	Ding, Xin
作者单位	1.Donghua Univ, Coll Text, Shanghai 201620, Peoples R China 2.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Gansu, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lab Clean Energy Chem & Mat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Tianyun,Lang, Junwei,Liu, Li,et al. Effect of carboxylic acid groups on the supercapacitive performance of functional carbon frameworks derived from bacterial cellulose[J]. CHINESE CHEMICAL LETTERS,2017,28(12):2212-2218.
APA	Zhang, Tianyun.,Lang, Junwei.,Liu, Li.,Liu, Lingyang.,Li, Hongxia.,...&Ding, Xin.(2017).Effect of carboxylic acid groups on the supercapacitive performance of functional carbon frameworks derived from bacterial cellulose.CHINESE CHEMICAL LETTERS,28(12),2212-2218.
MLA	Zhang, Tianyun,et al."Effect of carboxylic acid groups on the supercapacitive performance of functional carbon frameworks derived from bacterial cellulose".CHINESE CHEMICAL LETTERS 28.12(2017):2212-2218.