Au/activated-carbon catalysts for selective oxidation of alcohols with molecular oxygen under atmospheric pressure: Role of basicity

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Junjiang J Zhu (Autor) Outra; Jose L Figueiredo (Autor) FEUP; Joaquim L Faria (Autor) FEUP

Revista

Título: Catalysis Communications

Vol. 9

Páginas: 2395-2397

ISSN: 1566-7367

Editora: Elsevier

Indexação

ISI Web of Knowledge - 66 Citações

ISI Web of Science

Scopus - 73 Citações

COMPENDEX

Classificação Científica

FOS: Ciências exactas e naturais > Química

CORDIS: Ciências Tecnológicas

Outras Informações

ID Authenticus: P-003-WXD

DOI: 10.1016/j.catcom.2008.05.041

Abstract (EN): Addition of alkali (NaOH) increases significantly the activity of carbon supported gold catalyst for selective oxidation of alcohols with molecular oxygen carried out in non-aqueous medium (toluene) under mild conditions (1 atm. and 80 degrees C). The role of alkali in the reaction was investigated and it was found that the significant improvement of activity might be ascribed to the formation of Au-OH- sites where H-abstraction from alcohol takes place. The re-used catalyst completed four cycles without any appreciable loss of activity or selectivity under the given reaction conditions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3