Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

High capacitive rGO/WO3 nanocomposite: the simplest and fastest route of preparing it

Texto completo
Autor(es):
Pieretti, Joana C. [1, 2] ; Trevisan, Tayna B. [1, 2] ; de Moraes, Maria M. M. [1] ; de Souza, Eunezio A. [1, 2] ; Domingues, Sergio H. [1, 2]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Prebiteriana Mackenzie, MackGraphe, Graphene & Nanomat Res Ctr, BR-01302907 Sao Paulo - Brazil
[2] Univ Prebiteriana Mackenzie, Engineer Sch, BR-01302907 Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: APPLIED NANOSCIENCE; v. 10, n. 1, p. 165-175, JAN 2020.
Citações Web of Science: 1
Resumo

We report a quick 10-min route to synthesize a reduced graphene oxide/tungsten oxide (rGO/WO3) nanocomposite with impressive capacitive properties. The developed reaction was based on a nascent hydrogen reduction, a strong agent that allows the simultaneous reduction of components, leading to a material with synergic features. The rGO/WO3 nanocomposite was extensively characterized by various techniques confirming the obtainment through the proposed route. The supercapacitive properties of rGO/WO3 electrode were evaluated and the results showed a specific capacitance of 287 F g(-1) at 0.3 A g(-1), with more than 70% of stability even after 3000 cycles, 2.4 times higher than WO3 itself. To the best of our knowledge, there are no reports of such simple and fast synthesis of rGO/WO3-based materials, along with promising performance as electrode for supercapacitors. Besides, the development of this work had no dependence on hydrazine and sodium borohydride, highly hazardous chemicals commonly employed for rGO-based nanocomposites, or any expensive equipment. (AU)

Processo FAPESP: 15/10169-8 - Desenvolvimento de metodologia para a obtenção de grafeno por via química
Beneficiário:Joana Claudio Pieretti
Linha de fomento: Bolsas no Brasil - Iniciação Científica