Hydrogen peroxide electrogeneration in gas diffusion electrode nanostructured with Ta2O5

Página do item simplificado
dc.contributor.authorCarneiro, Jussara F.
dc.contributor.authorRocha, Robson S.
dc.contributor.authorHammer, Peter [UNESP]
dc.contributor.authorBertazzoli, R.
dc.contributor.authorLanza, M. R. V.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2018-11-27T13:40:00Z
dc.date.available2018-11-27T13:40:00Z
dc.date.issued2016-05-05
dc.description.abstractHighly efficient H2O2 electrogeneration is required in the Advanced Oxidation Process for organic wastewater treatment. However, the development of more efficient catalytic particles used in gas diffusion electrodes (GDEs) to enable the oxygen reduction reaction through two-electron transfer is still of great importance. The performance of the Ta2O5 nanoparticles on carbon black in catalyzing the ORR was evaluated using rotating ring-disk electrode. The current efficiency for H2O2 electrogeneration on Ta2O5/C catalyst is 83.2% whereas carbon black exhibits 65.3%. GDEs were constructed using carbon black either unmodified or modified with Ta2O5 nanoparticles. The modified GDE produces 27.9 mg L-1 of H2O2, while the unmodified GDE generates 19.1 mg L-1 of H2O2. Furthermore, the energy consumption for the H2O2 electrogeneration is lower in modified than in unmodified GDE (15.0 kWh vs. 18.8 kWh). The high performance of the GDE (Ta2O5/C) renders it a viable alternative cathode in the electrochemical treatment of wastewaters. (C) 2016 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Sao Paulo, Inst Quim Sao Carlos, Ave Trabalhador Sao Carlene 400, BR-13566590 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationUniv Estadual Campinas, Fac Engn Mecan, Rua Mendeleyev 200, BR-13083860 Campinas, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, Rua Prof Francisco Degni 55, BR-14800060 Araraquara, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 163689/2015-6
dc.description.sponsorshipIdCNPq: 160507/2011-1
dc.description.sponsorshipIdCNPq: 143345/2011-7
dc.description.sponsorshipIdCNPq: 470079/2013-4
dc.description.sponsorshipIdFAPESP: 2011/14314-1
dc.format.extent161-167
dc.identifierhttp://dx.doi.org/10.1016/j.apcata.2016.03.013
dc.identifier.citationApplied Catalysis A-general. Amsterdam: Elsevier Science Bv, v. 517, p. 161-167, 2016.
dc.identifier.doi10.1016/j.apcata.2016.03.013
dc.identifier.fileWOS000375162100018.pdf
dc.identifier.issn0926-860X
dc.identifier.lattes6466841023506131
dc.identifier.orcid0000-0002-3823-0050
dc.identifier.urihttp://hdl.handle.net/11449/165151
dc.identifier.wosWOS:000375162100018
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofApplied Catalysis A-general
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectTantalum oxide
dc.subjectOxygen reduction reaction
dc.subjectHydrogen peroxide electrogeneration
dc.subjectGas diffusion electrode
dc.titleHydrogen peroxide electrogeneration in gas diffusion electrode nanostructured with Ta2O5en
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes6466841023506131(3)
unesp.author.orcid0000-0002-3823-0050[3]

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
WOS000375162100018.pdf
Tamanho:
1.48 MB
Formato:
Adobe Portable Document Format
Descrição:
Baixar

Coleções

Artigos - Físico Química - IQ