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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
08/06/2022 |
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Data da última atualização: |
08/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEIXOTO, J. C.; NOGUEIRA, A. E.; DIAS, A.; TORRES, J. A.; CRUZ, J. C. da; RIBEIRO, C.; SIQUEIRA, K. P. F. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Experimental evaluation of the activity and selectivity of pure MnWO4 and doped with rare earth ions in the CO2 photoreduction process. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Materials Research Bulletin,, v. 153, 111912, 2022. |
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Páginas: |
1 - 10 |
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ISSN: |
0025-5408 |
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DOI: |
https://doi.org/10.1016/j.materresbull.2022.111912 |
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Idioma: |
Inglês |
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Conteúdo: |
The reduction of CO2 to produce useful carbon compounds offers a way to manage the emissions from various industrial sectors. However, selecting efficient systems remain a crucial issue, especially considering the low selectivity of the photocatalysts traditionally used in CO2 photoreduction processes. Here we demonstrate that the modification of MnWO4 with rare earth ions (Europium and Terbium) synthesized by the coprecipitation method can tune the activity and selectivity of the products formed in the process of CO2 photoreduction under UV irradiation. The CO2 photoreduction assays indicated that the photocatalysts presented good activity, resulting in acetate, acetone, acetic acid, ethanol, methane, and methanol products. Doping provided selectivity near 100% for CO2 conversion to methanol and increased the capacity of C2 (e.g., ethanol) production, opening the way for a better understanding of the activity and selectivity of tungstates in the CO2 photoreduction process. |
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Palavras-Chave: |
Doping; Manganese tungstate; Rare earth; Selectivity. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143863/1/p-Experimental-evaluation-of-the-activity-and-selectivity-of-pure-MnWO4-and.pdf
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Marc: |
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022 $a0025-5408
024 7 $ahttps://doi.org/10.1016/j.materresbull.2022.111912$2DOI
100 1 $aPEIXOTO, J. C.
245 $aExperimental evaluation of the activity and selectivity of pure MnWO4 and doped with rare earth ions in the CO2 photoreduction process.$h[electronic resource]
260 $c2022
300 $a1 - 10
520 $aThe reduction of CO2 to produce useful carbon compounds offers a way to manage the emissions from various industrial sectors. However, selecting efficient systems remain a crucial issue, especially considering the low selectivity of the photocatalysts traditionally used in CO2 photoreduction processes. Here we demonstrate that the modification of MnWO4 with rare earth ions (Europium and Terbium) synthesized by the coprecipitation method can tune the activity and selectivity of the products formed in the process of CO2 photoreduction under UV irradiation. The CO2 photoreduction assays indicated that the photocatalysts presented good activity, resulting in acetate, acetone, acetic acid, ethanol, methane, and methanol products. Doping provided selectivity near 100% for CO2 conversion to methanol and increased the capacity of C2 (e.g., ethanol) production, opening the way for a better understanding of the activity and selectivity of tungstates in the CO2 photoreduction process.
653 $aDoping
653 $aManganese tungstate
653 $aRare earth
653 $aSelectivity
700 1 $aNOGUEIRA, A. E.
700 1 $aDIAS, A.
700 1 $aTORRES, J. A.
700 1 $aCRUZ, J. C. da
700 1 $aRIBEIRO, C.
700 1 $aSIQUEIRA, K. P. F.
773 $tMaterials Research Bulletin,$gv. 153, 111912, 2022.
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Embrapa Instrumentação (CNPDIA) |
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