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.)

Evaluation of the PAni/B-doped diamond/CF ternary composite performance by varying the properties of constituent materials

Texto completo
Autor(es):
Silva, Lilian M. [1] ; Almeida, Dalva A. L. [1] ; Oishi, Silvia S. [1] ; Couto, Andrea B. [1] ; Ferreira, Neidenei G. [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Natl Inst Space Res, Associated Lab Sensors & Mat, BR-12227010 Sao Jose Dos Campos, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: MRS ADVANCES; v. 2, n. 41, p. 2217-2222, 2017.
Citações Web of Science: 1
Resumo

Polyaniline (PAni)/B-doped diamond/carbon fiber (CF) ternary composites were produced and characterized, aiming their application as electrodes for supercapacitor device. In order to optimize the composite properties, structurally different CF substrates, heat treated at 1000 and 2000 degrees C, were used to grown diamond films. Moreover, the diamond films were grown on CF in two different morphologies, boron doped micro and nanocrystalline diamond (BDD/BDND), by Hot Filament Chemical Vapor Deposition (HFCVD) technique. FEG-SEM images showed that PAni covered and enwrapped the diamond/CF surfaces, producing tridimensional electrodes. Raman spectra confirmed the PAni formation for all composites. Electrochemical characterizations indicated that the PAni/BDD/CF2000 composite has the highest current density and capacitance response among the studied composites combinations. In addition, it showed the most reversible oxidation and reduction processes, the greatest charge storage capacity as well as the lowest charge transfer resistance. (AU)

Processo FAPESP: 13/24396-0 - Compósitos de fibras de carbono/nanodiamante/polianilina interconectados em processos de limpeza de águas e/ou dispositivos de conversão de energia
Beneficiário:Lilian Mieko da Silva
Linha de fomento: Bolsas no Brasil - Doutorado