Preparation of activated carbon from cotton stalk and its application in supercapacitor
Chen, MD (Chen, Mingde); Kang, XY (Kang, Xueya); Wumaier, T (Wumaier, Tuerdi); Dou, JQ (Dou, Junqing); Gao, B (Gao, Bo); Han, Y (Han, Ying); Xu, GQ (Xu, Guoqing); Liu, ZQ (Liu, Zhiqiang); Zhang, L (Zhang, Lu); Kang, XY
2013
发表期刊JOURNAL OF SOLID STATE ELECTROCHEMISTRY
ISSN1432-8488
卷号17期号:4页码:1005-1012
摘要

High specific capacitance and low cost are the critical requirements for a practical supercapacitor. In this paper, a new activated carbon with high specific capacitance and low cost was prepared, employing cotton stalk as the raw material, by using the phosphoric acid (H3PO4) chemical activation method. The optimized conditions were as follows: the cotton stalk and activating agent with a mass ratio of 1:4 at an activation temperature of 800 A degrees C for 2 h. The samples were characterized by nitrogen adsorption isotherms at 77 K. The specific surface area and pore volume of activated carbon were calculated by Brunauer-Emmett-Teller (BET) and t-plot methods. With these experimental conditions, an activated carbon with a BET surface area of 1,481 cm(2) g(-1) and micropore volume of 0.0377 cm(3) g(-1) was obtained. The capacitance of the prepared activated carbon was as high as 114 F g(-1).The results indicate that cotton stalk can produce activated carbon electrode materials with low cost and high performance for electric double-layer capacitor.

关键词Supercapacitor Activated Carbon Cotton Stalk Specific Area H3po4 Activation
学科领域Electrochemistry
DOI10.1007/s10008-012-1946-6
收录类别SCI
WOS记录号WOS:000316088000010
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/2285
专题新疆维吾尔自治区电子信息材料与器件重点实验室
通讯作者Kang, XY
作者单位Chinese Acad Sci, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Chen, MD ,Kang, XY ,Wumaier, T ,et al. Preparation of activated carbon from cotton stalk and its application in supercapacitor[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2013,17(4):1005-1012.
APA Chen, MD .,Kang, XY .,Wumaier, T .,Dou, JQ .,Gao, B .,...&Kang, XY.(2013).Preparation of activated carbon from cotton stalk and its application in supercapacitor.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,17(4),1005-1012.
MLA Chen, MD ,et al."Preparation of activated carbon from cotton stalk and its application in supercapacitor".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 17.4(2013):1005-1012.
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