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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
15/04/2020 |
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Data da última atualização: |
11/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PUPPIN, L. G.; KHALID, M.; SILVA, G. T. T.; RIBEIRO, C.; VARELA, H.; LOPES, O. F. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Electrochemical reduction of CO2 to formic acid on Bi2O2CO3/carbon fiber electrodes. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Materials Research Society, n. 35, v. 3, 2020. |
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Páginas: |
272 - 280 |
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DOI: |
10.1557/jmr.2020.16 |
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Idioma: |
Inglês |
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Conteúdo: |
Electrochemical reduction of CO2 to formic acid is a good strategy to address both environmental and energy issues. However, some drawbacks including low activity, selectivity, and stability of electrocatalysts must be overcome. We propose a method for tailoring Bi 2 O 2CO 3 -coated carbon fiber electrodes with higher selectivity and stability for electrochemical CO 2 reduction to formic acid. We evaluated the effect of Bi 2 O 2CO 3 and Nafion contents on the electrocatalysts performance for CO 2 reduction reaction (CO 2RR). All electrodes produced only HCOO− in the liquid phase with a maximum faradaic efficiency (FE) of 69%. The electrocatalysts were stable under 24 h of continuous CO 2 RR operation. The FE increased with the increasing electrolyte concentration and cation radius size, which indicates that the anion stabilization in solution is critical for adequate formate generation. The CO 2 RR mechanism was proposed with basis on the literature. The structural carbonate of Bi2 O 2 CO3 acts as an intermediate species in the formate production from CO 2. |
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Palavras-Chave: |
Energy production; Metallic electrocatalysts; Organic pollutant degradation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01771naa a2200241 a 4500
001 2121669
005 2024-12-11
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1557/jmr.2020.16$2DOI
100 1 $aPUPPIN, L. G.
245 $aElectrochemical reduction of CO2 to formic acid on Bi2O2CO3/carbon fiber electrodes.$h[electronic resource]
260 $c2020
300 $a272 - 280
520 $aElectrochemical reduction of CO2 to formic acid is a good strategy to address both environmental and energy issues. However, some drawbacks including low activity, selectivity, and stability of electrocatalysts must be overcome. We propose a method for tailoring Bi 2 O 2CO 3 -coated carbon fiber electrodes with higher selectivity and stability for electrochemical CO 2 reduction to formic acid. We evaluated the effect of Bi 2 O 2CO 3 and Nafion contents on the electrocatalysts performance for CO 2 reduction reaction (CO 2RR). All electrodes produced only HCOO− in the liquid phase with a maximum faradaic efficiency (FE) of 69%. The electrocatalysts were stable under 24 h of continuous CO 2 RR operation. The FE increased with the increasing electrolyte concentration and cation radius size, which indicates that the anion stabilization in solution is critical for adequate formate generation. The CO 2 RR mechanism was proposed with basis on the literature. The structural carbonate of Bi2 O 2 CO3 acts as an intermediate species in the formate production from CO 2.
653 $aEnergy production
653 $aMetallic electrocatalysts
653 $aOrganic pollutant degradation
700 1 $aKHALID, M.
700 1 $aSILVA, G. T. T.
700 1 $aRIBEIRO, C.
700 1 $aVARELA, H.
700 1 $aLOPES, O. F.
773 $tMaterials Research Society$gn. 35
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| 2. |  | BARROS, J. D.; ARCOVERDE, G. F. B.; CARVALHO, A. C. F. de; VILA, A. J. T.; FAUSTINO, A. B.; MELO, A. A. de; VERAS, A. L.; MARTINS, C. S. G.; MELO, D. M. A. de; SANTOS, D. C. dos; VERDE, D. C. A. L.; TROVÃO, D. M. de B. M.; SILVA, E. S. da; SILVA, E. D. da C.; BARBOSA, E.; SILVA, F. G. C. da; ARAÚJO, H. F. P. de; MAIA, I. C.; SA, I. B.; RODRIGUES, J. de D.; CUNHA, J. E.; COSTA, J. D. da; CARVALHO, J. V.; LIMA, L. de C.; SANTOS, L. M. dos; ARAÚJO, L. N. de; COELHO, L. F. M.; VEIGA, M. E. B. da; ARAÚJO, M. C.; OLIVEIRA, M. G. de; MELO, M. G. P. de; GADELHA, M. A. da M. B.; SANTOS, M. C. dos; LIRA FILHO, P. de B.; LIMA, R. B. de; BATISTA, R. D.; OLIVEIRA, T. C. T. de; BEZERRA, U. A.; SOUZA, V. N. de. Processo participativo sobre degradação da terra em regiões do Semiárido brasileiro. São José dos Campos: SP, INPE, 2023. 53 p. il. color sid.inpe.br/mtc-m21d/2023/04.18.16.48-RPQ| Biblioteca(s): Embrapa Semiárido. |
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