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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
02/12/2021 |
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Data da última atualização: |
09/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FARIA, A. L. A.; CENTURION, H. A.; TORRES, J. A.; GONÇALVES, R. V.; RIBEIRO, L. S.; RIBEIRO, C.; CRUZ, J. C. da; NOGUEIRA, F. G. E. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Enhancing Nb2O5 activity for CO2 photoreduction through Cu nanoparticles cocatalyst deposited by DC-magnetron sputtering. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of CO2 Utilization, v. 53, 101739, 2021. |
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Páginas: |
1 - 8 |
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ISSN: |
2212 - 9820 |
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DOI: |
https://doi.org/10.1016/j.jcou.2021.101739 |
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Idioma: |
Inglês |
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Conteúdo: |
Herein we demonstrate that the deposition of a small loading of Cu nanoparticles (0.51 wt %) by DC-magnetron sputtering over niobium oxide (Nb2O5) increases its photocatalytic activity for the reduction of carbon dioxide (CO2) into methane (CH4), methanol (CH3OH), acetone (CH3COCH3), acetic acid (CH3COOH), isopropanol (CH3CH(OH)CH3) and formate (HCOO− ). The improvement in the CO2 photoreduction of the Nb2O5/Cu can be attributed mainly to a reduction in the recombination rate of the electron-holes pairs photogenerated due to the electron trapping by Cu species as observed by the photoluminescence analysis, high dispersion of Cu, and high specific surface area of material even after addition Cu |
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Palavras-Chave: |
CO2 photoreduction; Cu nanoparticles; Niobium oxide. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01556naa a2200277 a 4500
001 2137032
005 2022-06-09
008 2021 bl uuuu u00u1 u #d
022 $a2212 - 9820
024 7 $ahttps://doi.org/10.1016/j.jcou.2021.101739$2DOI
100 1 $aFARIA, A. L. A.
245 $aEnhancing Nb2O5 activity for CO2 photoreduction through Cu nanoparticles cocatalyst deposited by DC-magnetron sputtering.$h[electronic resource]
260 $c2021
300 $a1 - 8
520 $aHerein we demonstrate that the deposition of a small loading of Cu nanoparticles (0.51 wt %) by DC-magnetron sputtering over niobium oxide (Nb2O5) increases its photocatalytic activity for the reduction of carbon dioxide (CO2) into methane (CH4), methanol (CH3OH), acetone (CH3COCH3), acetic acid (CH3COOH), isopropanol (CH3CH(OH)CH3) and formate (HCOO− ). The improvement in the CO2 photoreduction of the Nb2O5/Cu can be attributed mainly to a reduction in the recombination rate of the electron-holes pairs photogenerated due to the electron trapping by Cu species as observed by the photoluminescence analysis, high dispersion of Cu, and high specific surface area of material even after addition Cu
653 $aCO2 photoreduction
653 $aCu nanoparticles
653 $aNiobium oxide
700 1 $aCENTURION, H. A.
700 1 $aTORRES, J. A.
700 1 $aGONÇALVES, R. V.
700 1 $aRIBEIRO, L. S.
700 1 $aRIBEIRO, C.
700 1 $aCRUZ, J. C. da
700 1 $aNOGUEIRA, F. G. E.
773 $tJournal of CO2 Utilization$gv. 53, 101739, 2021.
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