Low-temperature reduction of graphene oxide using the HDDR process for electrochemical supercapacitor applications

dc.creatorBENITEZ JARA, F.G.
dc.creatorCRUZ, P.D.V.
dc.creatorBARBOSA, L.P.
dc.creatorCASINI, J.C.S.
dc.creatorSAKATA, S.K.
dc.creatorPERUZZI, A.J.
dc.creatorFARIA, R.N.
dc.date2020
dc.date2020-12-10T19:05:03Z
dc.date2020-12-10T19:05:03Z
dc.date.accessioned2023-09-28T14:17:10Z
dc.date.available2023-09-28T14:17:10Z
dc.identifier0255-5476
dc.identifierhttp://200.136.52.105/handle/123456789/31638
dc.identifier1012
dc.identifier10.4028/www.scientific.net/MSF.1012.141
dc.identifier0000-0001-6072-5853
dc.identifierSem Percentil
dc.identifier15.00
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9001861
dc.descriptionIn 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.
dc.format141-146
dc.relationMaterials Science Forum
dc.rightsclosedAccess
dc.sourceCongresso Brasileiro de Engenharia e Ci??ncia dos Materiais, 23., 4-8 de novembro, 2018, Foz do Igua??u, PR
dc.subjectgraphene
dc.subjectcapacitors
dc.subjectenergy storage
dc.subjectcapacitance
dc.subjectequivalent circuits
dc.subjecthydrogenation
dc.subjectdesorption
dc.subjectrecombination
dc.titleLow-temperature reduction of graphene oxide using the HDDR process for electrochemical supercapacitor applications
dc.typeArtigo de peri??dico
dc.coverageI


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