Self-assembled three-dimensional hierarchical porous V2O5/graphene hybrid aerogels for supercapacitors with high energy density and long cycle life

被引：190

作者：

Wu, Yingjie ^{[1
]}

Gao, Guohua ^{[1
]}

Wu, Guangming ^{[1
]}

机构：

[1] Tongji Univ, Shanghai Key Lab Special Artificial Microstruct, Shanghai 200092, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 05期

基金：

中国国家自然科学基金;

关键词：

HIGH-PERFORMANCE; GRAPHENE OXIDE; CARBON NANOTUBES; REDUCED GRAPHENE; ELECTRODES; COMPOSITE; HYDROGELS; STRATEGY; FACILE;

D O I：

10.1039/c4ta05537c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper describes the synthesis of a hierarchical porous vanadium pentoxide (V2O5)/graphene hybrid aerogel through a low-cost and facile sol-gel method. The V(2)O(5/)graphene hybrid aerogel is synthesized through the in situ growth of V2O5 nanofibers on graphene sheets. The V2O5/graphene hybrid aerogel-based supercapacitors exhibit enhanced specific capacitance (486 F g(-1)), high energy density (68 W h kg(-1)) and outstanding cycle performance. These effects are attributed to the unique hierarchical porous structure of the hybrid aerogel.

引用

页码：1828 / 1832

页数：5

共 45 条

[1] Porous Electrode Materials for Lithium-Ion Batteries - How to Prepare Them and What Makes Them Special [J].

Anh Vu ;

Qian, Yuqiang ;

Stein, Andreas .

ADVANCED ENERGY MATERIALS, 2012, 2 (09) :1056-1085

[2] Synthesis and characterization of glycol-modified vanadium(V) oxoisopropoxide and their oximato derivatives: sol-gel transformations of [VO(OPr i )3], [VO{OCH2CH2OCH2CH2O}{OPr i }] and [VO{OCH2CH2OCH2CH2O}{ON=C(CH3)(C4H3S-2)}] to vanadia [J].

Atal, Mukesh Kumar ;

Dhayal, Veena ;

Nagar, Meena ;

Bohra, Rakesh ;

Rathore, Kuldeep S. ;

Saxena, Narendra S. .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2010, 53 (01) :67-78

[3] Advanced carbon aerogels for energy applications [J].

Biener, Juergen ;

Stadermann, Michael ;

Suss, Matthew ;

Worsley, Marcus A. ;

Biener, Monika M. ;

Rose, Klint A. ;

Baumann, Theodore F. .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (03) :656-667

[4]

Cai J., 2012, Angewandte Chemie, V124, P2118, DOI [DOI 10.1002/ANGE.201105730, 10.1002/ange.201105730]

[5]

Chandrappa N. S., 2002, NATURE, P416

[6] Bifunctional Graphene/γ-Fe2O3 Hybrid Aerogels with Double Nanocrystalline Networks for Enzyme Immobilization [J].

Chen, Liang ;

Wei, Bin ;

Zhang, Xuetong ;

Li, Chun .

SMALL, 2013, 9 (13) :2331-2340

[7] Novel and Facile Method, Dynamic Self-Assemble, To Prepare SnO2/rGO Droplet Aerogel with Complex Morphologies and Their Application in Supercapacitors [J].

Chen, Mingxi ;

Wang, Huan ;

Li, Lingzhi ;

Zhang, Zhe ;

Wang, Cong ;

Liu, Yu ;

Wang, Wei ;

Gao, Jianping .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (16) :14327-14337

[8] Self-Assembly and Embedding of Nanoparticles by In Situ Reduced Graphene for Preparation of a 3D Graphene/Nanoparticle Aerogel [J].

Chen, Wufeng ;

Li, Sirong ;

Chen, Chunhua ;

Yan, Lifeng .

ADVANCED MATERIALS, 2011, 23 (47) :5679-+

[9] Laser Scribing of High-Performance and Flexible Graphene-Based Electrochemical Capacitors [J].

El-Kady, Maher F. ;

Strong, Veronica ;

Dubin, Sergey ;

Kaner, Richard B. .

SCIENCE, 2012, 335 (6074) :1326-1330

[10] Edge-to-Edge Assembled Graphene Oxide Aerogels with Outstanding Mechanical Performance and Superhigh Chemical Activity [J].

Huang, Huan ;

Chen, Pengwan ;

Zhang, Xuetong ;

Lu, Yun ;

Zhan, Wanchu .

SMALL, 2013, 9 (08) :1397-1404

← 1 2 3 4 5 →