Open AccessSintering of Sio 2 ‐Tio 2 obtained by the sol‐gel process from chelated Ti precursors
Author(s) -
Méndezvivar J.,
MendozaSerna R.
Publication year - 1998
Publication title -
scanning
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1932-8745
pISSN - 0161-0457
DOI - 10.1002/sca.1998.4950200409
Subject(s) - reagent , sintering , chelation , precipitation , materials science , sol gel , process (computing) , chemical engineering , reactivity (psychology) , particle size , polymerization , particle (ecology) , inorganic chemistry , nanotechnology , chemistry , metallurgy , computer science , composite material , polymer , medicine , physics , alternative medicine , oceanography , pathology , geology , meteorology , engineering , operating system
Two experimental procedures were used to obtain SiO 2 ‐TiO 2 . In one case, the Si precursor was prehydrolyzed before reacting with Ti to equalize the chemical reactivity of both reagents. In the other case, H 2 O was produced in situ to avoid precipitation of TiO 2 . Two chelating agents were also used separately to control the polymerization process. It was found that the type of chelating agent leads to differences in the particle size.