Facile synthesis of graphene-AgVO3 nanocomposite with excellent supercapacitor performance

Qin, Jiaqian1,2,3; Zhang, Mengyuan2; Rajendran, Saravanan4; Zhang, Xinyu2; Liu, Riping2

2018-06-15

10.1016/j.matchemphys.2018.01.040

MATERIALS CHEMISTRY AND PHYSICS   影响因子和分区

0254-0584

1879-3312

The graphene-AgVO3 nanocomposites (GA30) were synthesized by facile one-step chemical-bath method. SEM and TEM images of the synthesized nanocomposites indicate that this method is possible to anchor the AgVO3 nanoparticles onto the graphene surface. Galvanostatic charge-discharge (GCD) shows that specific capacitance, cycle stability, and rate capability of the supercapacitor device can be enhanced with AgVO3 incorporation. The GA30 shows a high energy density of 10 Wh/kg at a power density of 25 W/kg as well as a high power density of 2045 W/kg at an energy density of 6 Wh/kg, which are much higher than those of graphene/activated carbon composites (GC30) and previous reported graphene-based composites. The improvement in specific capacitance, cycle stability, energy density and powder density of the graphene would be attributed to the special microstructure with high-rate transportation of both electrolyte ions and electrons due to the incorporation of AgVO3. (C) 2018 Elsevier B.V. All rights reserved.

Graphene AgVO3 Supercapacitor

SCI ; EI

英语

通讯

Natural Science Foundation for Distinguished Young Scholars of Hebei Province of China[E2016203376]

Materials Science

Materials Science, Multidisciplinary

WOS:000432767000004

ELSEVIER SCIENCE SA

20181404976949

Capacitance ; Carbon carbon composites ; Electrolytes ; Nanocomposites ; Silver compounds ; Supercapacitor ; Synthesis (chemical)

Structural Materials Other Than Metal, Plastics or Wood:415.4 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries and Fuel Cells:702 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Solid State Physics:933

MATERIALS SCIENCE

Web of Science

1.Chulalongkorn Univ, Met & Mat Sci Res Inst, Res Unit Adv Mat Energy Storage, Bangkok 10330, Thailand
2.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
3.Southern Univ Sci & Technol China, Shenzhen 518055, Guangdong, Peoples R China
4.Univ Chile, Dept Chem Engn & Biotechnol, Beauchef 850, Santiago, Chile

Qin, Jiaqian,Zhang, Mengyuan,Rajendran, Saravanan,et al. Facile synthesis of graphene-AgVO3 nanocomposite with excellent supercapacitor performance[J]. MATERIALS CHEMISTRY AND PHYSICS,2018,212:30-34.

Qin, Jiaqian,Zhang, Mengyuan,Rajendran, Saravanan,Zhang, Xinyu,&Liu, Riping.(2018).Facile synthesis of graphene-AgVO3 nanocomposite with excellent supercapacitor performance.MATERIALS CHEMISTRY AND PHYSICS,212,30-34.

Qin, Jiaqian,et al."Facile synthesis of graphene-AgVO3 nanocomposite with excellent supercapacitor performance".MATERIALS CHEMISTRY AND PHYSICS 212(2018):30-34.