The Role of Complexing Ligands in the Formation of Non-Aggregated Nanoparticles of Zirconia

被引：64

作者：

Chatry, M. ^{[1
]}

Henry, M. ^{[1
]}

In, M. ^{[1
]}

Sanchez, C. ^{[1
]}

Livage, J. ^{[1
]}

机构：

[1] Univ Paris 06, Lab Chim Mat Condensee, F-75252 Paris 05, France

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1994年 / 1卷 / 03期

关键词：

zirconia ZrO2; nanocrystalline particles; sol-gel; alkoxides;

D O I：

10.1007/BF00486166

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The hydrolysis and condensation of zirconium n-propoxide in n-propanol have been chemically controlled via the complexation of the zirconium precursor with acetylacetone. The size of the zirconium oxide-based particles is mainly controlled by the complexation ratio x = [acac]/[Zr]. The mean size increases from nanometric to submicronic range when x decreases from 1 to 0.1. Amorphous colloidal particles are obtained at room temperature. They result from a competitive growth/termination mechanism of zirconium-oxo species in the presence of acac surface capping agents. However non-aggregated nanocrystalline particles of tetragonal zirconia, about 2 nm in diameter are formed upon aging at 60 degrees C when hydrolysis is performed in the presence of paratoluene sulfonic acid (PTSA).

引用

页码：233 / 240

页数：8

共 27 条

[1] Badley D.C., 1978, METAL ALKOXIDES
[2] CHARACTERIZATION OF ZRO2-Y2O3 THERMAL BARRIER COATINGS BY RAMAN-SPECTROSCOPY
BENNER, RE
NAGELBERG, AS
[J]. THIN SOLID FILMS, 1981, 84 (01) : 89 - 94
[3] Bradley D C, 1967, COORDIN CHEM REV, V2, P299
[4] Brinker C., 1990, SOL GEL SCI PHYS CHE
[5] CHEMICAL ASPECTS OF SOLUTION ROUTES TO PEROVSKITE-PHASE MIXED-METAL OXIDES FROM METAL-ORGANIC PRECURSORS
CHANDLER, CD
ROGER, C
HAMPDENSMITH, MJ
[J]. CHEMICAL REVIEWS, 1993, 93 (03) : 1205 - 1241
[6] FRACTURE TOUGHNESS OF AL-2 O-3 WITH AN UNSTABILIZED ZRO-2 DISPERSED PHASE
CLAUSSEN, N
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1976, 59 (1-2) : 49 - 51
[7] THE CRYSTAL STRUCTURE OF ZIRCONYL CHLORIDE OCTAHYDRATE AND ZIRCONYL BROMIDE OCTAHYDRATE
CLEARFIELD, A
VAUGHAN, PA
[J]. ACTA CRYSTALLOGRAPHICA, 1956, 9 (06): : 555 - 558
[8] THERMAL EVOLUTION OF ALKOXY-DERIVED GLASS-LIKE TRANSPARENT ZIRCONIA GEL
DEBSIKDAR, JC
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1986, 87 (03) : 343 - 349
[9] STRUCTURES OF THE ZRO2 POLYMORPHS AT ROOM-TEMPERATURE BY HIGH-RESOLUTION NEUTRON POWDER DIFFRACTION
HOWARD, CJ
HILL, RJ
REICHERT, BE
[J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 1988, 44 : 116 - 120
[10] KEPPLER BK, 1991, STRUCT BOND, V78, P97

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