Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/1142
Título: Transition metal (Cu, Cr, and V) modified MCM-41 for the catalytic wet air oxidation of aniline
Autor: Gomes, Helder
Selvam, Parasuraman
Dapurkar, Sudhir
Figueiredo, José
Faria, Joaquim
Palavras-chave: Aniline
Catalytic wet air oxidation (CWAO)
Mesoporous molecular sieves
Data: 2005
Editora: Elsevier
Citação: Gomes, Helder; Selvam, Parasuraman; Dapurkar, Sudhir; Figueiredo, José; Faria, Joaquim (2005) - Transition metal (Cu, Cr, and V) modified MCM-41 for the catalytic wet air oxidation of aniline. Microporous and Mesoporous Materials. ISSN 1387-1811. 86:1-3, p. 287-294
Resumo: Mesoporous MCM-41 based materials containing various transition metals (Cr, Cu and V) were prepared hydrothermally and characterized using various analytical and spectroscopic techniques. Cr and Cu are randomly anchored to the surface of MCM-41 support, while V is predominantly present as penta-valent species within the framework structure of the support. The catalytic activity was tested in the wet air oxidation of aniline aqueous solutions (2 g/L) using a high-pressure reactor at 200 C with an oxygen partial pressure of 6.9 bar. Among the prepared materials, (Cu)MCM-41 showed a significant catalytic activity with an aniline conversion after 2 h of 96% and a selectivity towards CO2 formation of 76%. Although some leaching of the Cu was observed, the catalyst showed a good performance and stability after re-use in at least three consecutive cycles.
Peer review: yes
URI: http://hdl.handle.net/10198/1142
ISSN: 1387-1811
Versão do Editor: http://www.sciencedirect.com/science/journal/13871811
Aparece nas colecções:DTQB - Artigos em Revistas Indexados ao ISI/Scopus

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