Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR
A study on the monitoring of glycerol oxidation catalyzed by gold nanoparticles supported on activated carbon under mild conditions by chemometric methods is presented. The reaction was monitored by mass spectrometry-electrospray ionization (ESI-MS) and comparatively by mid infrared spectroscopy (MI...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2013-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000100014&lng=en&tlng=en |
| _version_ | 1811274625052573696 |
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| author | Cleiton A. Nunes Mário C. Guerreiro |
| author_facet | Cleiton A. Nunes Mário C. Guerreiro |
| author_sort | Cleiton A. Nunes |
| collection | DOAJ |
| description | A study on the monitoring of glycerol oxidation catalyzed by gold nanoparticles supported on activated carbon under mild conditions by chemometric methods is presented. The reaction was monitored by mass spectrometry-electrospray ionization (ESI-MS) and comparatively by mid infrared spectroscopy (MIR). Concentration profiles of reagent and products were determined by chemometric tools such as Principal Component Analysis (PCA), Evolving Factor Analysis (EFA) and Multivariate Curve Resolution (MCR). The gold nanoparticle catalyst was relatively active in glycerol oxidation, favoring formation of high added value products. It was found that the reaction stabilization was reached at four hours, with approximately 70% glycerol conversion and high selectivity for glycerate. |
| first_indexed | 2024-04-12T23:22:39Z |
| format | Article |
| id | doaj.art-4abac4c6fc404385a2e8533e982f4418 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-12T23:22:39Z |
| publishDate | 2013-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-4abac4c6fc404385a2e8533e982f44182022-12-22T03:12:29ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642013-01-01361747810.1590/S0100-40422013000100014S0100-40422013000100014Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIRCleiton A. Nunes0Mário C. Guerreiro1Universidade Federal de LavrasUniversidade Federal de LavrasA study on the monitoring of glycerol oxidation catalyzed by gold nanoparticles supported on activated carbon under mild conditions by chemometric methods is presented. The reaction was monitored by mass spectrometry-electrospray ionization (ESI-MS) and comparatively by mid infrared spectroscopy (MIR). Concentration profiles of reagent and products were determined by chemometric tools such as Principal Component Analysis (PCA), Evolving Factor Analysis (EFA) and Multivariate Curve Resolution (MCR). The gold nanoparticle catalyst was relatively active in glycerol oxidation, favoring formation of high added value products. It was found that the reaction stabilization was reached at four hours, with approximately 70% glycerol conversion and high selectivity for glycerate.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000100014&lng=en&tlng=englycerolgoldchemometrics |
| spellingShingle | Cleiton A. Nunes Mário C. Guerreiro Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR Química Nova glycerol gold chemometrics |
| title | Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR |
| title_full | Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR |
| title_fullStr | Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR |
| title_full_unstemmed | Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR |
| title_short | Oxidação de glicerol sobre nanopartículas de ouro suportadas em carvão ativado: monitoramento quimiométrico da reação por ESI-MS e MIR |
| title_sort | oxidacao de glicerol sobre nanoparticulas de ouro suportadas em carvao ativado monitoramento quimiometrico da reacao por esi ms e mir |
| topic | glycerol gold chemometrics |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000100014&lng=en&tlng=en |
| work_keys_str_mv | AT cleitonanunes oxidacaodeglicerolsobrenanoparticulasdeourosuportadasemcarvaoativadomonitoramentoquimiometricodareacaoporesimsemir AT mariocguerreiro oxidacaodeglicerolsobrenanoparticulasdeourosuportadasemcarvaoativadomonitoramentoquimiometricodareacaoporesimsemir |