Low-temperature reduction of graphene oxide using the HDDR process for electrochemical supercapacitor applications
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2020
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Materials Science Forum
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In the present work, attempts of reducing a graphene oxide powder using a low
temperature hydrogenation disproportionation desorption and the recombination process (L-HDDR)
has been carried out. A lower processing temperature in large scale production is significant when
costs are concerned. Graphite oxide was prepared using a modified Hummers’ method dispersed in
ethanol and exfoliated using ultrasonication to produce Graphene Oxide (GO). Investigations have
been carried out by X-ray diffraction (XRD) and scanning electron microscopy (SEM). 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. X-ray diffraction patterns showed
a reduction of graphene oxide with the L-HDDR process. The results showed that both processes,
the L-HDDR as well as the standard HDDR, may be applied to the reduction of graphene oxide in
order to produce supercapacitor materials. The advantage of employing the L-HDDR process is a
relatively low temperature reducing the cost of treatment, what is a very important factor for
producing a large amount of material. Thus, the L-HDDR process has been considered a promising
alternative method of reducing graphene oxide with efficiency, with the possibility of large scale
production.
Como referenciar
BENITEZ JARA, F.G.; CRUZ, P.D.V.; BARBOSA, L.P.; CASINI, J.C.S.; SAKATA, S.K.; PERUZZI, A.J.; FARIA, R.N. Low-temperature reduction of graphene oxide using the HDDR process for electrochemical supercapacitor applications. Materials Science Forum, v. 1012, p. 141-146, 2020. DOI: 10.4028/www.scientific.net/MSF.1012.141. Disponível em: http://200.136.52.105/handle/123456789/31638. Acesso em: 09 May 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.