Thermal behaviour of titanium in host matrix clay

AUTOR(ES)

Volzone, Cristina, Cesio, Ana María

FONTE

Materials Research

DATA DE PUBLICAÇÃO

2009-06

RESUMO

Titanium in hosted by a clay matrix has important applications in a variety of catalysts. However, there is insufficient information about of textural and structural characteristics of the titanium in matrix clay at room temperature and after thermal treatment. In this study, titanium in host matrix clay was obtained by treating montmorillonite clay minerals with different OH-Ti solutions. The titanium-solutions containing partially hydrolyzed titanium were obtained using a TiCl4 solution with and without the addition of glycerol. The amount of Ti added to the solid was 20 mmol Ti per gram of clay. Thermal treatments were carried out at 500 and 1,000 °C in an air atmosphere. The solids were characterized by X ray diffraction, thermal analyses, infrared spectroscopy, N2 adsorption-desorption isotherms. The products presented different structural and textural characteristics and, after calcination at 1,000 °C, anatase and rutile in different proportions were present in the samples.

Documentos Relacionados

• Thermal Damage in Diamonds: the Protective Effect of Titanium Coating
• Synthesis and physicochemical characterization of titanium oxide and sulfated titanium oxide obtained by thermal hydrolysis of titanium tetrachloride
• Microstructure of alumina-matrix composites reinforced with nanometric titanium and titanium carbide dispersions
• Thermal characterization of commercially pure titanium for dental applications
• Thermal Decomposition of Polymer/Montmorillonite Nanocomposites Synthesized in situ on a Clay Surface