Facile fabrication of well-defined microtubular carbonized kapok fiber/NiO composites as electrode material for supercapacitor | |
Department | 环境材料与生态化学研究发展中心 |
Xu WB(许卫兵)1,2; Mu B(牟斌)1; Wang AQ(王爱勤)1; Mou B(牟斌); Wang AQ(王爱勤) | |
2016 | |
Source Publication | Electrochimica Acta |
ISSN | 0013-4686 |
Volume | 194Pages:84-94 |
Abstract | Design and fabrication of structurally optimized electrode materials using biomass materials has become one of the hottest subjects in the field of electrochemical energy storage. Hollow tubular carbonized kapok fiber/NiO composites are synthesized by a facile hydrothermal and carbonization procedure using kapok fiber as a low-cost template. Owing to their unique microtubular structure, the as-prepared composites exhibit a high specific capacitance of 575.7 F g−1 at current density of 0.5 A g−1. Furthermore, an asymmetric supercapacitor device also has been fabricated using carbonized kapok fiber/NiO composites and commercial activated carbon as the positive and negative electrodes, respectively. Because of its unique structure, high capacitive performance, and complementary potential window, the asymmetric supercapacitor device can be cycled reversibly at a cell voltage of 1.6 V in 1.0 M KOH aqueous electrolyte, delivering a high energy density of 7.5 W h kg−1 at a power density of 64.6 W kg−1. In addition, the asymmetric supercapacitor device also exhibits a superior long cycle life and the capacitance retention of the initial specific capacitance cannot found clearly degeneration after 4000 cycles. It is worth noting that this scalable protocol also can be employed to prepare other microtubular carbon/metal oxide composites with good electrochemical performances. |
Keyword | Kapok Fiber Well-defined Nio Microtubular Electrode Materials |
Subject Area | 环境材料与生态化学 |
DOI | 10.1016/j.electacta.2016.02.072 |
Funding Organization | the National Natural Science Foundation of China (No. 51303190) |
Indexed By | SCI |
If | 4.798 |
Language | 英语 |
Funding Project | 功能复合材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19794 |
Collection | 环境材料与生态化学研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Mou B(牟斌); Wang AQ(王爱勤) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Xu WB,Mu B,Wang AQ,et al. Facile fabrication of well-defined microtubular carbonized kapok fiber/NiO composites as electrode material for supercapacitor[J]. Electrochimica Acta,2016,194:84-94. |
APA | Xu WB,Mu B,Wang AQ,牟斌,&王爱勤.(2016).Facile fabrication of well-defined microtubular carbonized kapok fiber/NiO composites as electrode material for supercapacitor.Electrochimica Acta,194,84-94. |
MLA | Xu WB,et al."Facile fabrication of well-defined microtubular carbonized kapok fiber/NiO composites as electrode material for supercapacitor".Electrochimica Acta 194(2016):84-94. |
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1-s2.0-S001346861630(3624KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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