Synthesis of non-aggregated nanometric crystalline zirconia particles

Journal Article · Sun May 01 00:00:00 EDT 1994 · Materials Research Bulletin; (United States)

DOI:https://doi.org/10.1016/0025-5408(94)90040-X· OSTI ID:7108363

Chatry, M; Henry, M; Livage, J ^[1]

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1. Univ. Pierre et Marie Curie, Paris (France). Lab. de Chimie de la Matiere Condensee

The sol-gel synthesis of zirconia from zirconium n-propoxide in n-propanol can be controlled via the chemical modification of the alkoxide with acetylacetone. Hydrolysis is performed by aqueous solution of paratoluene sulfonic acid. Depending on the respective hydrolysis and complexation ratios different products can be obtained ranging from precipitates to sols. Stable non-aggregated colloids, about 2nm in diameter, can be obtained after aging the sols at 60 C. They are made up of small crystalline particles of tetragonal zirconia. Complexing ligands such as acetylacetone appear to prevent both condensation and aggregation processes.

• OSTI ID: 7108363
• Journal Information: Materials Research Bulletin; (United States), Journal Name: Materials Research Bulletin; (United States) Vol. 29:5; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKOXIDES
CERAMICS
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DECOMPOSITION
HYDROLYSIS
LYSIS
OXIDES
OXYGEN COMPOUNDS
SOLVOLYSIS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES