| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
15/04/2020 |
|
Data da última atualização: |
11/12/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
PUPPIN, L. G.; KHALID, M.; SILVA, G. T. T.; RIBEIRO, C.; VARELA, H.; LOPES, O. F. |
|
Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
|
Título: |
Electrochemical reduction of CO2 to formic acid on Bi2O2CO3/carbon fiber electrodes. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Materials Research Society, n. 35, v. 3, 2020. |
|
Páginas: |
272 - 280 |
|
DOI: |
10.1557/jmr.2020.16 |
|
Idioma: |
Inglês |
|
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. |
|
Palavras-Chave: |
Energy production; Metallic electrocatalysts; Organic pollutant degradation. |
|
Categoria do assunto: |
-- |
|
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
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 132 | |
| 7. |  | COUTINHO, A. C. Dinâmica das queimadas no Mato Grosso. In: C0NFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais: Experimentos de Grande Escala da Biosfera-Atmosfera na Amazônia. Brasília: ECO-LBA, 2004. 1 CD-ROM| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
|    |
| 14. | | MATTO, C.; MIRANDA, J. R.; ZONTA, M.; COUTINHO, A. C. Cartografia do uso atual das terras nas Áreas de Proteção Ambiental de Sousas e Joaquim Egídio, Campinas-SP, Brasil. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 8., 1996, Salvador. Anais... São José dos Campos: INPE, 1996; Equador: SELPER, 1996. 2 p. folhas avulsas| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
| |
| 16. | | GUIMARÃES, M.; COUTINHO, A. C.; DORADO, A. J. Monitoramento da cobertura e dos usos do solo em uma região do Mato Grosso, Brasil, através da imagens TM-LANDSAT. In: SIMPÓSIO LATINOAMERICANO DE PERCEPCIÓN REMOTA, 9., 2000, Puerto Iquazú, Misiones-Argentina. Resumenes... Argentina: SELPER, 2000. 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
| |
| Registros recuperados : 132 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
