Nanoporous Walls on Macroporous Foam: Rational Design of Electrodes to Push Areal Pseudocapacitance

被引：247

作者：

Guan, Cao ^{[1
,2
]}

Li, Xianglin ^{[1
]}

Wang, Zilong ^{[1
]}

Cao, Xiehong ^{[3
]}

Soci, Cesare ^{[1
]}

Zhang, Hua ^{[3
]}

Fan, Hong Jin ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore

[2] Nanyang Technol Univ, Energy Res Inst NTU ERIAN, Singapore 637553, Singapore

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 30期

关键词：

electrodes; energy storage; foams; porous materials; supercapacitors; LI-ION BATTERIES; ELECTROCHEMICAL CAPACITORS; NICKEL FOAM; OPTICAL-PROPERTIES; ENERGY-CONVERSION; NANOWIRE ARRAYS; SUPERCAPACITORS; PERFORMANCE; STORAGE; FILM;

D O I：

10.1002/adma.201104295

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

For application as a pseudocapacitor electrode, highly porous CoO nanowalls are fabricated directly on 3D macroporous nickel foam (see images). A relatively high areal capacitance is achieved because of the porous structure. By grafting the porous nanowalls with another pseudocapacitive oxide, the areal capacitance can be further significantly boosted, owing to the increased surface area caused by the hierarchically porous structure as well as a possible synergetic effect between the two oxides. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：4186 / 4190

页数：5

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