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MULTIFUNCTIONAL SKELETAL CATALYTIC SUPPORT 1. ALUMINA-BASED COMPOSITION FOR POROUS ADSORBING LAYER

A. M. Kaszoni Pricop1,* , E. J. Popovici1, D. Roiban1, T. Ursales1, R. Grecu1, E. Indrea2

Affiliation

  1. “Raluca Ripan“ Institute for Research in Chemistry, 30 Fântânele, 3400 Cluj-Napoca, Romania
  2. National Institute for R&D of Isotopic & Molecular Technology 3400 Cluj-Napoca, P.O. Box 700, Romania

Abstract

Ceramic and metallic honeycombs present a great importance as catalytic substrates in processes that aim at the ecosystem protection. For an increased functionality of the substrate, the honeycomb surface has to be coated with a highly absorbing layer. The paper presents some of our results referring to the preparation and characterisation of alumina based composition that is to be used as porous adsorbing layer for coatings on metallic substrates. Sample of alumina based compositions were prepared from homogeneous mixtures consisting of g-Al2O3 (adsorbing material), boehmite (binding agent), nitric acid (peptising agent) and water (dispersing medium). Special attention was paid to alumina hydrate preparation and characterisation. The main characteristics of the boehmite type are summarised i.e. crystalline structure, thermal behaviour, FT-IR spectra and surface area..

Keywords

Catalysts, Catalytic support, Boehmite, Metallic honeycomb.

Submitted at: Sept. 17, 2003
Accepted at: March 15, 2004

Citation

A. M. Kaszoni Pricop, E. J. Popovici, D. Roiban, T. Ursales, R. Grecu, E. Indrea, MULTIFUNCTIONAL SKELETAL CATALYTIC SUPPORT 1. ALUMINA-BASED COMPOSITION FOR POROUS ADSORBING LAYER, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 1, pp. 219-224 (2004)