A facile synthesis of hierarchical α-MnO2 nanofibers on 3D-graphene foam for supercapacitor application

被引：66
|
作者：
Patil, Umakant M. [1 ]
Sohn, Ji Soo [1 ]
Kulkarni, Sachin B. [1 ]
Park, Hyung Goo [1 ]
Jung, Youngmo [1 ]
Gurav, Kishor V. [2 ]
Kim, Jae Hun [3 ]
Jun, Seong Chan [1 ]
机构：
[1] Yonsei Univ, Sch Mech Engn, Seoul 120749, South Korea
[2] Chonnam Natl Univ, Dept Mat Sci & Engn, Kwangju 500757, South Korea
[3] Korea Inst Sci & Technol, Sensor Syst Res Ctr, Seoul 136791, South Korea
来源：
MATERIALS LETTERS | 2014年 / 119卷
基金：
新加坡国家研究基金会;
关键词：
alpha-MnO2; Nanofibers; 3D-graphene foam; Supercapacitor; ELECTROCHEMICAL CAPACITORS; BATTERIES;
D O I：
10.1016/j.matlet.2013.12.105
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Prominence of current work mainly conveys synthesis of alpha-MnO2 nanofibers on 3D-graphene foam (GF) by solution growth (SG) method and its proficient influence in electrochemical supercapacitors' performance. The alpha-MnO2 nanofibers are synthesized on graphene surface by using MnSO4 and ammonium persulfate as an oxidant. The results show formation of aggregated bundles (size about 15-30 nm) of 1D alpha-MnO2 nanofibers on the graphene surface. In supercapacitor, the unique nanofibrous morphology of MnO2 on 3D GF electrode exhibits higher specific capacitance (670 F g(-1)) than on the conventional current collector (CC) electrode (440 F g(-1)). (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：135 / 139
页数：5
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