Preparation and characterization of monodispersed YSZ nanocrystals

Guangsheng Pang; Siguang Chen; Yingchun Zhu; Oleg Palchik; Yuri Koltypin; Afie Zaban; Aharon Gedanken

doi:10.1021/jp010334q

Preparation and characterization of monodispersed YSZ nanocrystals

Guangsheng Pang, Siguang Chen, Yingchun Zhu, Oleg Palchik, Yuri Koltypin, Afie Zaban, Aharon Gedanken

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

A novel method for large-scale preparation of yttria-stabilized zirconia (YSZ) nanocrystals is presented. The hydrous YSZ colloidal nanoparticles are self-assembled on the surface of SrCO₃ nanoparticles by a sonochemical method. After calcination, fully crystalline monodispersed YSZ nanoparticles are obtained, and the SrCO₃ is washed out by 10% HNO₃ solution. The agglomeration of YSZ particles is inhibited as the crystallization occurs on the surface and interface of SrCO₃ nanoparticles. The nanocrystals are monodispersed with an average particle size of 4.7 nm and a high surface area of 165 m²/g. The quantum confinement effect is observed: the band gap increases from 4.13 eV for the agglomerated sample to 5.44 eV for the monodispersed YSZ nanocrystals.

Original language	English
Pages (from-to)	4647-4652
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	105
Issue number	20
DOIs	https://doi.org/10.1021/jp010334q
State	Published - 24 May 2001

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abstract = "A novel method for large-scale preparation of yttria-stabilized zirconia (YSZ) nanocrystals is presented. The hydrous YSZ colloidal nanoparticles are self-assembled on the surface of SrCO3 nanoparticles by a sonochemical method. After calcination, fully crystalline monodispersed YSZ nanoparticles are obtained, and the SrCO3 is washed out by 10% HNO3 solution. The agglomeration of YSZ particles is inhibited as the crystallization occurs on the surface and interface of SrCO3 nanoparticles. The nanocrystals are monodispersed with an average particle size of 4.7 nm and a high surface area of 165 m2/g. The quantum confinement effect is observed: the band gap increases from 4.13 eV for the agglomerated sample to 5.44 eV for the monodispersed YSZ nanocrystals.",

author = "Guangsheng Pang and Siguang Chen and Yingchun Zhu and Oleg Palchik and Yuri Koltypin and Afie Zaban and Aharon Gedanken",

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T1 - Preparation and characterization of monodispersed YSZ nanocrystals

AU - Pang, Guangsheng

AU - Chen, Siguang

AU - Zhu, Yingchun

AU - Palchik, Oleg

AU - Koltypin, Yuri

AU - Zaban, Afie

AU - Gedanken, Aharon

PY - 2001/5/24

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AB - A novel method for large-scale preparation of yttria-stabilized zirconia (YSZ) nanocrystals is presented. The hydrous YSZ colloidal nanoparticles are self-assembled on the surface of SrCO3 nanoparticles by a sonochemical method. After calcination, fully crystalline monodispersed YSZ nanoparticles are obtained, and the SrCO3 is washed out by 10% HNO3 solution. The agglomeration of YSZ particles is inhibited as the crystallization occurs on the surface and interface of SrCO3 nanoparticles. The nanocrystals are monodispersed with an average particle size of 4.7 nm and a high surface area of 165 m2/g. The quantum confinement effect is observed: the band gap increases from 4.13 eV for the agglomerated sample to 5.44 eV for the monodispersed YSZ nanocrystals.

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Preparation and characterization of monodispersed YSZ nanocrystals

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