Facile synthesis of graphene-AgVO3 nanocomposite with excellent supercapacitor performance
Author
dc.contributor.author
Qin, Jiaqian
Author
dc.contributor.author
Zhang, Mengyuan
Author
dc.contributor.author
Rajendran, Saravanan
Author
dc.contributor.author
Zhang, Xinyu
Author
dc.contributor.author
Liu, Riping
Admission date
dc.date.accessioned
2018-09-27T18:58:01Z
Available date
dc.date.available
2018-09-27T18:58:01Z
Publication date
dc.date.issued
2018-06-15
Cita de ítem
dc.identifier.citation
Materials Chemistry and Physics 212 (2018) 30e34
es_ES
Identifier
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10.1016/j.matchemphys.2018.01.040
Identifier
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https://repositorio.uchile.cl/handle/2250/151806
Abstract
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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.
es_ES
Patrocinador
dc.description.sponsorship
Ratchadaphiseksomphot Endowment under Outstanding Research Performance Program, Chulalongkorn University
Thailand Research Fund
RSA6080017
Natural Science Foundation for Distinguished Young Scholars of Hebei Province of China
E2016203376