Spontaneous gold decoration of activated carbons

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

B. Jarrais (Autor) FCUP; A. R. Silva (Autor) Outra; L. S. Ribeiro (Autor) FEUP; E. G. Rodrigues (Autor) FEUP; J. J. M. Órfão (Autor) FEUP; M. F. R. Pereira (Autor) FEUP; J. L. Figueiredo (Autor) FEUP; C. Freire (Autor) FCUP

Revista

Título: Inorganica Chimica Acta

Vol. 408

Páginas: 235-239

ISSN: 0020-1693

Editora: Elsevier

Indexação

ISI Web of Knowledge - 3 Citações

ISI Web of Science

Scopus - 3 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas > Engenharia

Projetos Associados

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

Outras Informações

ID Authenticus: P-006-6CG

DOI: 10.1016/j.ica.2013.07.008

Abstract (EN): A novel mild method for the preparation of gold supported on activated carbons was achieved through direct reduction of Au3+ ions onto the surface of two different types of activated carbons, namely a non-functionalized commercial type and a chemically modified activated carbon. The chemically modified activated carbon was obtained by gas phase oxidation of the latter, in order to introduce surface oxygen groups. Geometrical and amorphous gold and gold clusters were formed at the surface of the two types of carbon supports, through a straightforward redox reaction under mild conditions. We demonstrated the catalytic performance of gold supported on activated carbon in the oxidation of glycerol, which presented high activity and selectivity towards the formation of glyceric acid.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5