Synthesis of very highly dispersed platinum catalysts supported on carbon xerogels by the strong electrostatic adsorption method

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Lambert, S (Author) Other; Job, N (Author) Other; D'Souza, L (Author) Other; Manuel Fernando R Pereira (Author) FEUP; Pirard, R (Author) Other; Heinrichs, B (Author) Other; José Luis Figueiredo (Author) FEUP; Pirard, JP (Author) Other; Regalbuto, JR (Author) Other

Journal

Title: Journal of Catalysis

Vol. 261

Pages: 23-33

ISSN: 0021-9517

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 89 Citations

ISI Web of Science

Scopus - 108 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences

Other information

Authenticus ID: P-003-QTW

DOI: 10.1016/j.jcat.2008.10.014

Abstract (EN): Highly dispersed Pt/carbon xerogel catalysts are obtained by applying the "strong electrostatic adsorption" (SEA) of hexachloroplatinic acid to carbon xerogels (PZC = 9.4) and platinum tetraammine chloride to oxidized carbon xerogels (PZC = 2.4). After the reduction step, all these Pt/carbon xerogel catalysts display a very high level of metal dispersion: very small platinum particles (1.1-1.3 rim) are observed by TEM. Pt particle sizes obtained by CO chemisorption are in good agreement with TEM micrographs, which shows that the metal is accessible to reactants. These Pt/carbon xerogel catalysts are very active for the hydrogenation of benzene into cyclohexane.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11