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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: |
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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Embrapa Instrumentação (CNPDIA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
13/11/2006 |
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Data da última atualização: |
23/10/2009 |
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Autoria: |
SANZONOWICZ, C.; JUNQUEIRA, N. T. V. |
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Título: |
Calagem e adubação do maracujazeiro-doce. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2005. |
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Páginas: |
26 p. |
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Série: |
(Embrapa Cerrados. Documentos, 140). |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT: The sweet passion fruits is a native species of Brazil. It is very well adapted to tropical regions, and can be found growing in wild conditions or cultivated by small farmers in many regions. It is consumed mainly as a fresh fruit, splitting with a knife in two parts and using a spoon to collect the pulp with the seeds. The concentrated juice, easily extracted from the pulp, can be used to make juice, ice-cream and deserts. Many small farmers grow sweet passion fruit as an ornamental plant, particularly because of the beauty flowers and colored fruits. In additon it is considered as a medicinal species to treat stress, anxiety and sleeplessness. The ofter of fresh sweet passion fruit in most fruit and grocery stores is still very limited, and prices are very high. The main purpose of this paper is to collect the most important research results regarding practices used to correct the soil acidity and to supply nutrients to improve the production systems of sweet passion fruit. |
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Palavras-Chave: |
Correção do solo; Maracujazeiro; Phosphate fertilizers; Potash fertilizers. |
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Thesagro: |
Adubação; Calagem; Fertilidade do Solo; Fertilizante Fosfatado; Fertilizante Potássico; Maracujá; Passiflora Edulis. |
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Thesaurus NAL: |
fertilizer application; passion fruits; soil amendments; soil fertility. |
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Categoria do assunto: |
-- |
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URL: |
https://www.infoteca.cnptia.embrapa.br/infoteca/bitstream/doc/569839/1/doc140.pdf
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Marc: |
LEADER 01895nam a2200325 a 4500
001 1569839
005 2009-10-23
008 2005 bl uuuu u0uu1 u #d
100 1 $aSANZONOWICZ, C.
245 $aCalagem e adubação do maracujazeiro-doce.
260 $aPlanaltina, DF: Embrapa Cerrados$c2005
300 $a26 p.
490 $a(Embrapa Cerrados. Documentos, 140).
520 $aABSTRACT: The sweet passion fruits is a native species of Brazil. It is very well adapted to tropical regions, and can be found growing in wild conditions or cultivated by small farmers in many regions. It is consumed mainly as a fresh fruit, splitting with a knife in two parts and using a spoon to collect the pulp with the seeds. The concentrated juice, easily extracted from the pulp, can be used to make juice, ice-cream and deserts. Many small farmers grow sweet passion fruit as an ornamental plant, particularly because of the beauty flowers and colored fruits. In additon it is considered as a medicinal species to treat stress, anxiety and sleeplessness. The ofter of fresh sweet passion fruit in most fruit and grocery stores is still very limited, and prices are very high. The main purpose of this paper is to collect the most important research results regarding practices used to correct the soil acidity and to supply nutrients to improve the production systems of sweet passion fruit.
650 $afertilizer application
650 $apassion fruits
650 $asoil amendments
650 $asoil fertility
650 $aAdubação
650 $aCalagem
650 $aFertilidade do Solo
650 $aFertilizante Fosfatado
650 $aFertilizante Potássico
650 $aMaracujá
650 $aPassiflora Edulis
653 $aCorreção do solo
653 $aMaracujazeiro
653 $aPhosphate fertilizers
653 $aPotash fertilizers
700 1 $aJUNQUEIRA, N. T. V.
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