Synthesis and dispersion of yttria-stabilized zirconia (YSZ) nanoparticles in supercritical water

被引：11

作者：

Gonzalo-Juan, I. ^{[1
]}

Ferrari, B. ^{[1
]}

Colomer, M. T. ^{[1
]}

Rodriguez, M. A. ^{[1
]}

Sanchez-Herencia, A. J. ^{[1
]}

Koh, P-Y. ^{[2
]}

Teja, A. S. ^{[2
]}

机构：

[1] CSIC, Inst Ceram & Vidrio, Madrid 28049, Spain

[2] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2012年 / 134卷 / 01期

关键词：

Oxides; Chemical synthesis; Electron microscopy; Raman spectroscopy and scattering; CONTINUOUS HYDROTHERMAL SYNTHESIS; NEAR-CRITICAL WATER; ONE-STEP SYNTHESIS; FUEL-CELLS; SOLID-SOLUTIONS; PARTICLES; ELECTROLYTE; SUSPENSIONS; POWDERS; SYSTEM;

D O I：

10.1016/j.matchemphys.2012.03.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Yttria-stabilized zirconia (YSZ) nanoparticles were synthesized in supercritical water (SON) without the use of mineralizers that are conventionally used to ensure basic conditions during synthesis. Process parameters were varied and their effect on the synthesis yield and particle morphology and composition were investigated. Conditions for synthesizing a stoichiometric YSZ nanopowder were identified. Dry YSZ particles collected in the continuous SCW process were redispersed in water in order to study their aggregation characteristics (including the size of agglomerates and the degree of agglomeration) in aqueous dispersions. Surface modification by the addition of polyethylenimine (PEI) was shown to result in stable dispersions of particles with average diameters between 50 nm and 100 nm. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：451 / 458

页数：8

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