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

页码：135 / 139

页数：5

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