Palladium nanoparticles supported on mesoporous biocarbon from coconut shell for ethanol electro‑oxidation in alkaline media

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dc.contributor.authorFERREIRA, JOAO C.
dc.contributor.authorCAVALLARI, ROGER V.
dc.contributor.authorBERGAMASCHI, VANDERLEI S.
dc.contributor.authorANTONIASSI, RODOLFO M.
dc.contributor.authorTEIXEIRA-NETO, ANGELA A.
dc.contributor.authorLINARDI, MARCELO
dc.contributor.authorSILVA, JULIO C.M.
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-12-03T17:28:22Z
dc.date.available2018-12-03T17:28:22Z
dc.date.issued2018pt_BR
dc.description.abstractPalladium nanoparticles supported on carbon Vulcan XC72 (Pd/C) and biocarbon (Pd/BC) synthesized by sodium borohydride process were used as catalysts for ethanol electro-oxidation in alkaline media. The biocarbon (BC) from coconut shell with mesoporous and high surface area (792 m2 g−1) was obtained by carbonization at 900 °C and the hydrothermal treatment in a microwave oven. The D-band and G-band intensity ratio (ID/IG) from Raman analysis showed high disorder of the biocarbon, while X-ray photoelectron spectroscopy (XPS) suggests higher percentage of oxygen groups on the surface of biocarbon than of Vulcan XC72. From X-ray diffraction (XRD), it was observed peaks in 2θ degree related to the face centered cubic (fcc) structure of palladium and the mean crystallite sizes calculated based on the diffraction peak of Pd (220) were 5.6 nm for Pd/C and 5.3 nm for Pd/BC. Using Transmission Electron Microscope (TEM), it was observed particles well dispersed on both carbons support materials. The electrocatalytic activity of the materials was investigated by cyclic voltammetry (CV) and chronoamperometry (CA) experiments. The peak current density (on CV experiments) from ethanol electro-oxidation on Pd/BC was 50% higher than on Pd/C, while the current density measured at 15 min of CA experiments was 80% higher on Pd/BC than on Pd/C. The higher catalytic activity of Pd/BC might be related to the large surface area of the biocarbon (792 m2 g−1) vs (239 m2 g−1) of Vulcan carbon, the defects of the biocarbon structure and higher amount of oxygen on the surface than Carbon Vulcan XC 72.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP: 14/09087-4; 17/15469-5pt_BR
dc.identifier.citationFERREIRA, JOAO C.; CAVALLARI, ROGER V.; BERGAMASCHI, VANDERLEI S.; ANTONIASSI, RODOLFO M.; TEIXEIRA-NETO, ANGELA A.; LINARDI, MARCELO; SILVA, JULIO C.M. Palladium nanoparticles supported on mesoporous biocarbon from coconut shell for ethanol electro‑oxidation in alkaline media. <b>Materials for Renewable and Sustainable Energy</b>, v. 7, n. 4, 2018. DOI: <a href="https://dx.doi.org/10.1007/s40243-018-0130-z">10.1007/s40243-018-0130-z</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29304.
dc.identifier.doi10.1007/s40243-018-0130-zpt_BR
dc.identifier.fasciculo4pt_BR
dc.identifier.issn2194-1459pt_BR
dc.identifier.orcidaguardandopt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0105-6519
dc.identifier.percentilfiSem Percentil
dc.identifier.percentilfiCiteScore69.50
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/29304
dc.identifier.vol7pt_BR
dc.relation.ispartofMaterials for Renewable and Sustainable Energypt_BR
dc.rightsopenAccesspt_BR
dc.subjectpalladium
dc.subjectnanoparticles
dc.subjectcarbon
dc.subjectcarbon sources
dc.subjectborohydrides
dc.subjectsodium compounds
dc.subjectliquid fuels
dc.subjectfuel cells
dc.titlePalladium nanoparticles supported on mesoporous biocarbon from coconut shell for ethanol electro‑oxidation in alkaline mediapt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorROGER VASCONCELOS CAVALLARI
ipen.autorRODOLFO MOLINA ANTONIASSI
ipen.autorMARCELO LINARDI
ipen.autorVANDERLEI SERGIO BERGAMASCHI
ipen.autorJOAO COUTINHO FERREIRA
ipen.codigoautor14282
ipen.codigoautor10166
ipen.codigoautor279
ipen.codigoautor221
ipen.codigoautor489
ipen.contributor.ipenauthorROGER VASCONCELOS CAVALLARI
ipen.contributor.ipenauthorRODOLFO MOLINA ANTONIASSI
ipen.contributor.ipenauthorMARCELO LINARDI
ipen.contributor.ipenauthorVANDERLEI SERGIO BERGAMASCHI
ipen.contributor.ipenauthorJOAO COUTINHO FERREIRA
ipen.date.recebimento18-12pt_BR
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.fiCiteScore4.0
ipen.identifier.ipendoc25093pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication669d82e0-4e22-4fe1-a3d6-a48edc71d732
relation.isAuthorOfPublicationae1e5fd0-06cd-4131-a981-827c9445f077
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relation.isAuthorOfPublication2dd18575-cb64-4385-8b4e-1d6f4385e64a
relation.isAuthorOfPublication.latestForDiscovery2dd18575-cb64-4385-8b4e-1d6f4385e64a
sigepi.autor.atividadeFERREIRA, JOAO C.:489:610:Spt_BR
sigepi.autor.atividadeCAVALLARI, ROGER V.:14282:610:Npt_BR
sigepi.autor.atividadeBERGAMASCHI, VANDERLEI S.:221:610:Npt_BR
sigepi.autor.atividadeANTONIASSI, RODOLFO M.:10166:610:Npt_BR
sigepi.autor.atividadeLINARDI, MARCELO:279:610:Npt_BR
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