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学科主题: Electrochemistry
题名: Preparation of activated carbon from cotton stalk and its application in supercapacitor
作者: 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)
通讯作者: Kang, XY
关键词: Supercapacitor ; Activated carbon ; Cotton stalk ; Specific area ; H3PO4 activation
刊名: JOURNAL OF SOLID STATE ELECTROCHEMISTRY
发表日期: 2013
DOI: 10.1007/s10008-012-1946-6
卷: 17, 期:4, 页:1005-1012
收录类别: SCI
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.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2285
Appears in Collections:新疆维吾尔自治区电子信息材料与器件重点实验室_期刊论文

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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

Recommended Citation:
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.
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