| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
02/12/2022 |
|
Data da última atualização: |
22/01/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SILVA, M. A. R. da; GIL, J. C.; TARAKINA, N. V.; SILVA, G. T. S. T.; FILHO, J. B. G.; KRAMBROCK, K.; ANTONIETTI, M.; RIBEIRO, C.; TEIXEIRA, I. F. |
|
Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
|
Título: |
Selective methane photooxidation into methanol under mild conditions promoted by highly dispersed Cu atoms on crystalline carbon nitrides. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
ChemIcal Commununications, vol. 58, 2022. |
|
Páginas: |
7419-7422 |
|
ISSN: |
1364-548X |
|
DOI: |
10.1039/d2cc01757a |
|
Idioma: |
Inglês |
|
Conteúdo: |
Here we report a photocatalytic system based on crystalline carbon nitrides (PHI) and highly dispersed transition metals (Fe, Co and Cu)for controlled methane photooxidation to methanol under mild conditions. The Cu-PHI catalyst showed a remarkable methanol production (2900 lmol g1) in 4 hours, with a turnover number of 51 moles of oxygenated liquid product per mole of Cu. To date, this result is the highest value for methane oxidation under mild conditions (1 bar, 25 8C). |
|
Palavras-Chave: |
Methane conversion; Photocatalytic system. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149141/1/P-Selective-methane-photooxidation-into-methanol.pdf
|
|
Marc: |
LEADER 01320naa a2200277 a 4500
001 2149141
005 2024-01-22
008 2022 bl uuuu u00u1 u #d
022 $a1364-548X
024 7 $a10.1039/d2cc01757a$2DOI
100 1 $aSILVA, M. A. R. da
245 $aSelective methane photooxidation into methanol under mild conditions promoted by highly dispersed Cu atoms on crystalline carbon nitrides.$h[electronic resource]
260 $c2022
300 $a7419-7422
520 $aHere we report a photocatalytic system based on crystalline carbon nitrides (PHI) and highly dispersed transition metals (Fe, Co and Cu)for controlled methane photooxidation to methanol under mild conditions. The Cu-PHI catalyst showed a remarkable methanol production (2900 lmol g1) in 4 hours, with a turnover number of 51 moles of oxygenated liquid product per mole of Cu. To date, this result is the highest value for methane oxidation under mild conditions (1 bar, 25 8C).
653 $aMethane conversion
653 $aPhotocatalytic system
700 1 $aGIL, J. C.
700 1 $aTARAKINA, N. V.
700 1 $aSILVA, G. T. S. T.
700 1 $aFILHO, J. B. G.
700 1 $aKRAMBROCK, K.
700 1 $aANTONIETTI, M.
700 1 $aRIBEIRO, C.
700 1 $aTEIXEIRA, I. F.
773 $tChemIcal Commununications, vol. 58, 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agroenergia. |
|
Data corrente: |
10/12/2021 |
|
Data da última atualização: |
10/12/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
SILVA, M. R. da; BRAGAGNOLO, F. S.; CARNEIRO. R. L.; PEREIRA, I. de O. C.; RIBEIRO, J. A. de A.; RODRIGUES, C. M.; JELLEY, R. E.; FEDRIZZI, B.; FUNARI, C. S. |
|
Afiliação: |
MARIANA RODRIGUES DA SILVA, Universidade Estadual de São Paulo; FELIPE SANCHEZ BRAGAGNOLO, Universidade Estadual Paulista "Júlio de Mesquita Filho"; RENATO LAJARIM CARNEIRO, Universidade Federal de São Carlos; ISABELA DE OLIVEIRA CARVALHO PEREIRA, Universidade Estadual Paulista "Júlio de Mesquita Filho"; JOSE ANTONIO DE AQUINO RIBEIRO, CNPAE; CLENILSON MARTINS RODRIGUES, CNPAE; REBECCA E. JELLEY, University of Auckland; BRUNO FEDRIZZI, University of Auckland; CRISTIANO SOLEO FUNARI, Universidade Estadual Paulista "Júlio de Mesquita Filho". |
|
Título: |
Metabolite characterization of fifteen by-products of the coffee production chain: From farm to factory. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
Food Chemistry, v. 369, 130753, Feb. 2022. |
|
Páginas: |
17 p. |
|
DOI: |
https://doi.org/10.1016/j.foodchem.2021.130753 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: Approximately 11.4 million tonnes of solid by-products and an increased amount of waste water will be generated during the 2020/21 coffee harvest. There are currently no truly value-adding uses for these potentially environmentally threatening species. This work presents the most wide-ranging chemical investigation of coffee by-products collected from farms to factories, including eight never previously investigated. Twenty compounds were found for the first time in coffee by-products including the bioactive neomangiferin, kaempferol-3-O-rutinoside, lup-20(29)-en-3-one and 3,4-dimethoxy cinnamic acid. Five by-products generated inside a factory showed caffeine (53.0–17.0 mg.g−1) and/or chlorogenic acid (72.9–10.1 mg.g−1) content comparable to coffee beans, while mature leaf from plant pruning presented not only high contents of both compounds (16.4 and 38.9 mg.g-1, respectively), but also of mangiferin (19.4 mg.g-1) besides a variety of flavonoids. Such by-products are a source of a range of bioactive compounds and could be explored with potential economic and certainly environmental benefits. |
|
Thesaurus NAL: |
Bioactive compounds; Biorefining; Chemical analysis; Coffee products; Liquid-liquid extraction; Processing waste; Solid wastes; Solidago. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 02141naa a2200337 a 4500
001 2137602
005 2021-12-10
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.foodchem.2021.130753$2DOI
100 1 $aSILVA, M. R. da
245 $aMetabolite characterization of fifteen by-products of the coffee production chain$bFrom farm to factory.$h[electronic resource]
260 $c2022
300 $a17 p.
520 $aAbstract: Approximately 11.4 million tonnes of solid by-products and an increased amount of waste water will be generated during the 2020/21 coffee harvest. There are currently no truly value-adding uses for these potentially environmentally threatening species. This work presents the most wide-ranging chemical investigation of coffee by-products collected from farms to factories, including eight never previously investigated. Twenty compounds were found for the first time in coffee by-products including the bioactive neomangiferin, kaempferol-3-O-rutinoside, lup-20(29)-en-3-one and 3,4-dimethoxy cinnamic acid. Five by-products generated inside a factory showed caffeine (53.0–17.0 mg.g−1) and/or chlorogenic acid (72.9–10.1 mg.g−1) content comparable to coffee beans, while mature leaf from plant pruning presented not only high contents of both compounds (16.4 and 38.9 mg.g-1, respectively), but also of mangiferin (19.4 mg.g-1) besides a variety of flavonoids. Such by-products are a source of a range of bioactive compounds and could be explored with potential economic and certainly environmental benefits.
650 $aBioactive compounds
650 $aBiorefining
650 $aChemical analysis
650 $aCoffee products
650 $aLiquid-liquid extraction
650 $aProcessing waste
650 $aSolid wastes
650 $aSolidago
700 1 $aBRAGAGNOLO, F. S.
700 1 $aCARNEIRO. R. L.
700 1 $aPEREIRA, I. de O. C.
700 1 $aRIBEIRO, J. A. de A.
700 1 $aRODRIGUES, C. M.
700 1 $aJELLEY, R. E.
700 1 $aFEDRIZZI, B.
700 1 $aFUNARI, C. S.
773 $tFood Chemistry$gv. 369, 130753, Feb. 2022.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agroenergia (CNPAE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
