赵宗彬

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:中科院山西煤化所

学位:博士

所在单位:化工学院

学科:功能材料化学与化工. 物理化学

办公地点:大连理工大学 西校区化工综合楼A212

联系方式:zbzhao@dlut.edu.cn

电子邮箱:zbzhao@dlut.edu.cn

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Hybrid pseudocapacitor materials from polyaniline@multi-walled carbon nanotube with ultrafine nanofiber-assembled network shell

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论文类型:期刊论文

发表时间:2015-12-01

发表刊物:CARBON

收录刊物:EI、SCIE、ISTIC、Scopus

卷号:95

页面范围:323-329

ISSN号:0008-6223

摘要:Porous carbon-based hybrids consisting of nanoscale building units are highlighted as supercapacitive materials for outstanding rate capability and cyclability. Herein reported are new hierarchically porous coreeshell hybrids of polyaniline@multi-walled carbon nanotube (PANI@MWCNT) with ultrafine nanofiber-assembled network shell for supercapacitors via a facile reverse microemulsion polymerization route. Among various as-prepared samples, PANI@MWCNT2 hybrids (72 wt.% PANI loading) show the maximum specific capacitance of 663 F g(-1) at 0.5 A g(-1) with good capacitance retention of about 87% at 2 A g(-1) in contrast to pure PANI (526 F g(-1) with 76% retention) and other hybrids (613 and 538 F g(-1) for the hybrids with 84 wt.% and 48% wt.% PANI, respectively). Moreover, 82% of initial capacitance still remains over 1000 cycles at 5 A g(-1) for PANI@MWCNT2. The data clearly reveal a dramatic improvement of the hybrids in performance containing capacitance and rate capability meanwhile lifetime, thanks to unique structure features with highly surface-porous PANI nanofiber networks intimately wrapped around conductive MWCNTs helping to greatly promote faradic redox process and cycling behavior. (C) 2015 Elsevier Ltd. All rights reserved.