Modifying the functional cover of the γ-Al2O3 surface using organic salts of aluminum
作者:R. M. Mironenko、O. B. Belskaya、I. G. Danilova、V. P. Talsi、V. A. Likholobov
DOI:10.1134/s0023158411040094
日期:2011.7
A method is suggested for modifying the surface properties of alumina without changing its chemical composition. The sorption of aluminum complexes with organic acid ligands on the gamma-Al2O3 surface is reported. The thermal decomposition of the adsorbed oxalate complexes yields supported aluminum oxide compounds on the surface of the initial support. This modifies the functional cover of the gamma-Al2O3 surface, altering the proportions of different types of surface hydroxyl groups, reducing their total number, and lowering the concentration of weak Lewis acid sites.