Journal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
Volume 79, Issue 2, Pages 249-261Publisher
SPRINGER
DOI: 10.1007/s10971-015-3920-0
Keywords
Single-source precursors; Titanium alkoxides; Sol-gel method; Metal oxo clusters
Categories
Ask authors/readers for more resources
The question how the metals in bimetallic sol-gel materials are positioned relative to each other and how the dispersion of the metals can be controlled is a major preparative and analytical challenge. Two particular aspects are addressed: The first is an alternative type of single-source precursors where the two metals are interlinked through an organic spacer. The new options provided by this approach are demonstrated for metal oxide/silica nanocomposites, zinc titanate and Co3O4/ceria catalysts. The second issue with regard to heterobimetallic systems is the kind of intermediates formed during sol-gel co-processing of two different metal precursors (metal alkoxides or metal alkoxide + metal salt). Systematic investigation of the structures of Ti/M oxo clusters (M = main group or transition metal, or lanthanide) shows some interesting common construction principles and thus sheds light on early stages of the structural evolution in mixed-metal oxide systems. [GRAPHICS]
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available