Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/1342
Título: Carbon aerogel supported platinum catalysts for selective hydrogenation of cinnamaldehyde
Autor: Machado, Bruno
Morales-Torres, Sergio
Gomes, Helder
Pérez-Cadenas, A.F.
Maldonado-Hódar, F.J.
Carrasca-Marín, F.
Figueiredo, José
Faria, Joaquim
Palavras-chave: Carbon aerogels
Platinum
Surface groups
Cinnamaldehyde hydrogenation
Data: 2008
Editora: Universidade do Minho
Citação: Machado, Bruno; Morales-Torres, Sergio; Gomes, Helder; Pérez-Cadenas, A.F.; Maldonado-Hódar, F.J.; Figueiredo, José; Carrasca-Marín, F.; Faria, Joaquim (2008) - Carbon aerogel supported platinum catalysts for selective hydrogenation of cinnamaldehyde. In 10th International Chemical and Biological Engineering Conference (CHEMPOR). Braga. ISBN 978-972-97810-3-2
Resumo: This paper describes the preparation and characterization of 1% wt. Pt catalysts supported in carbon aerogels for the application in the liquid-phase selective hydrogenation of cinnamaldehyde. Carbon aerogel supports with different textures were activated with hydrogen peroxide and ammonium peroxydisulfate leading to large amounts of surface groups but keeping unchanged their textural properties. After introducing Pt, the surface chemistry and morphology of the catalysts was characterized by analytical techniques like SEM, TPD, N2 adsorption isotherms, mercury porosimetry and H2 chemisorption. Catalysts prepared with activated aerogels exhibited good selectivity towards the desired product, cinnamyl alcohol. A high temperature post-treatment of the catalysts failed to enhance their selectivity, mainly leading to hydrocinnamaldehyde production.
URI: http://hdl.handle.net/10198/1342
Aparece nas colecções:DTQB - Artigos em Proceedings Não Indexados ao ISI/Scopus

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
CHEMPOR-Braga-2008.pdf1,22 MBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.