Graphene-wrapped and cobalt oxide-intercalated hybrid for extremely durable super-capacitor with ultrahigh energy and power densities

被引：172

作者：

Kumar, Rajesh ^{[1
]}

Kim, Hyun-Jun ^{[1
]}

Park, Sungjin ^{[2
]}

Srivastava, Anchal ^{[3
]}

Oh, Il-Kwon ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Sch Mech Aerosp & Syst Engn, Graphene Res Ctr, Inst NanoCentury,Div Ocean Syst Engn, Taejon 305701, South Korea

[2] Inha Univ, Dept Chem & Chem Engn, Inchon 402751, South Korea

[3] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

来源：

CARBON | 2014年 / 79卷

关键词：

LITHIUM-ION BATTERIES; ELECTROCHEMICAL CAPACITORS; SUPERCAPACITOR ELECTRODES; CARBON; STORAGE; SHEETS; NANOSHEETS; COMPOSITE; FABRICATION; BEHAVIORS;

D O I：

10.1016/j.carbon.2014.07.059

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：

We report an easy strategy to synthesize graphene-wrapped and cobalt oxide-intercalated (GWCI) hybrid nanostructures using microwave irradiation for an extremely durable supercapacitor with ultrahigh energy and power densities. The GWCI hybrid nanostructures that are mechanically protected and squeezed by graphene layers are beneficial for efficiently preventing the detachments of metal oxide nanoparticles from graphene surfaces due to volume expansion and contraction during charge and discharge cycling. This GWCI material shows a remarkable cycling stability over 10,000 cycles due to the intercalation of cobalt oxide (Co3O4) nanoparticles between graphene layers and external wrapping by graphene layers. The GWCI material exhibit nearly double specific capacitance as compared to partially microwave-exfoliated graphene oxide (MpEGO) material and also indicate extremely durable stability after 100 cycle, resulting from the excellent electrochemical performance of the GWCI material. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：192 / 202

页数：11

共 45 条

[21] Effect of Temperature on the Capacitance of Carbon Nanotube Supercapacitors [J].

Masarapu, Charan ;

Zeng, Hai Feng ;

Hung, Kai Hsuan ;

Wei, Bingqing .

ACS NANO, 2009, 3 (08) :2199-2206

[22] Materials science - Toward flexible batteries [J].

Nishide, Hiroyuki ;

Oyaizu, Kenichi .

SCIENCE, 2008, 319 (5864) :737-738

[23] Electric field effect in atomically thin carbon films [J].

Novoselov, KS ;

Geim, AK ;

Morozov, SV ;

Jiang, D ;

Zhang, Y ;

Dubonos, SV ;

Grigorieva, IV ;

Firsov, AA .

SCIENCE, 2004, 306 (5696) :666-669

[24] Effect of carbon blacks filler addition on electrochemical behaviors of Co3O4/graphene nanosheets as a supercapacitor electrodes [J].

Park, Sukeun ;

Kim, Seok .

ELECTROCHIMICA ACTA, 2013, 89 :516-522

[25] Functionalized single graphene sheets derived from splitting graphite oxide [J].

Schniepp, HC ;

Li, JL ;

McAllister, MJ ;

Sai, H ;

Herrera-Alonso, M ;

Adamson, DH ;

Prud'homme, RK ;

Car, R ;

Saville, DA ;

Aksay, IA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (17) :8535-8539

[26] Materials for electrochemical capacitors [J].

Simon, Patrice ;

Gogotsi, Yury .

NATURE MATERIALS, 2008, 7 (11) :845-854

[27] Defect-Engineered Three-Dimensional Graphene-Nanotube-Palladium Nanostructures with Ultrahigh Capacitance [J].

Sridhar, Vadahanambi ;

Kim, Hyun-Jun ;

Jung, Jung-Hwan ;

Lee, Changgu ;

Park, Sungjin ;

Oh, Il-Kwon .

ACS NANO, 2012, 6 (12) :10562-10570

[28] Graphene-Based Ultracapacitors [J].

Stoller, Meryl D. ;

Park, Sungjin ;

Zhu, Yanwu ;

An, Jinho ;

Ruoff, Rodney S. .

NANO LETTERS, 2008, 8 (10) :3498-3502

[29] On the chemical nature of thermally reduced graphene oxide and its electrochemical Li intake capacity [J].

Uthaisar, Chananate ;

Barone, Veronica ;

Fahlman, Bradley D. .

CARBON, 2013, 61 :558-567

[30] A review of electrode materials for electrochemical supercapacitors [J].

Wang, Guoping ;

Zhang, Lei ;

Zhang, Jiujun .

CHEMICAL SOCIETY REVIEWS, 2012, 41 (02) :797-828

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