Thermal reduction of graphene oxide nanocomposite using a low temperature HDDR process for supercapacitors
Carregando...
Data
Data de publicação:
2017
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
PAN AMERICAN CONGRESS OF NANOTECHNOLOGY, 1st
Exportar
Resumo
Recently, it has shown that the hydrogenation disproportionation desorption and recombination
(HDDR) process can be an efficient method for the production of reduced graphene oxide for
supercapacitors electrodes. The HDDR reduced graphene oxide was processed using a
standard temperature (850 o C) for other materials applications. Some improvement in the
specific capacitance and in the equivalent serial resistance has been obtained with this
particular hydrogen thermal reduction process. The HDDR process has been considered a
promising alternative method of reducing graphene oxide with efficiency and possibly in large
scale production. A low temperature HDDR process was unreported for this purpose. In the
present work, attempts of reducing a graphene oxide powder using a low temperature
hydrogenation disproportionation desorption and recombination process (L-HDDR) has been
carried out. A lower processing temperature in large scale production is significant as far as
costs are concerned. Graphite oxide was prepared using a modified Hummers’ method and
dispersed in ethanol, exfoliated using ultrasonication to produce Graphene Oxide (GO).
Investigations have been carried out by X-ray diffraction (XRD), scanning electron microscopy
(SEM) and Fourier transform infrared spectroscopy (FTIR). The experimental results of L-HDDR
processing graphene oxide powder using unmixed hydrogen at 400°C and relatively low
pressures (<2 bars) have been reported.
Como referenciar
JARA, FERNANDO G.B.; CRUZ, PEDRO V.D.; GALDINO, GABRIEL S.; CASINI, JULIO C.S.; SAKATA, SOLANGE K.; FARIA JUNIOR, RUBENS N. Thermal reduction of graphene oxide nanocomposite using a low temperature HDDR process for supercapacitors. In: PAN AMERICAN CONGRESS OF NANOTECHNOLOGY, 1st, 27-30 de novembro, 2017, Guarujá, SP. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/29040. Acesso em: 26 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.