Effect of atomization methods on the size and morphology of Gd 0.1Ce 0.9O 2-δ powder synthesized by aerosol flame synthesis

Jongmo Im, Inyu Park, Dong Wook Shin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Nano-sized gadolinium doped ceria (GDC) powders were successfully synthesized by aerosol flame deposition (AFD) with two different atomization methods; ultrasonic and electrostatic atomization. The effect of the atomization method on the size and morphology of GDC particles were investigated. It was observed that the diameter range of the GDC small primary particles synthesized by the ultrasonic atomization method was 10-50 nm while with the electrostatic method was 5-25 nm. In addition, the size of primary large particle found to be decreased from 200 nm to 50 nm with increasing electric field up to 15 kV. The GDC powder synthesized by the electrostatic atomization exhibited reduced crystallite size, particle size, and similar electrical conductivity compared to GDC powder synthesized by ultrasonic atomization. This work demonstrated the benefits of the electrostatic atomization for producing smaller-sized GDC nanopowders for the application in intermediate temperature solid oxide fuel cells.

Original languageEnglish
Pages (from-to)2051-2058
Number of pages8
JournalCeramics International
Volume38
Issue number3
DOIs
StatePublished - 2012 Apr 1

Fingerprint

Flame synthesis
Atomization
Aerosols
Gadolinium
Cerium compounds
Powders
Electrostatics
Ultrasonics
Crystallite size
Solid oxide fuel cells (SOFC)
Particle size
Electric fields

Keywords

  • Aerosol flame deposition (AFD)
  • Electrostatic atomization
  • Gadolinium doped ceria (GDC)
  • Nanopowders
  • Solid oxide fuel cells (SOFCs)
  • Ultrasonic atomization

Cite this

@article{12864d28b1294d43bcf4d9f2acd8f476,
title = "Effect of atomization methods on the size and morphology of Gd 0.1Ce 0.9O 2-δ powder synthesized by aerosol flame synthesis",
abstract = "Nano-sized gadolinium doped ceria (GDC) powders were successfully synthesized by aerosol flame deposition (AFD) with two different atomization methods; ultrasonic and electrostatic atomization. The effect of the atomization method on the size and morphology of GDC particles were investigated. It was observed that the diameter range of the GDC small primary particles synthesized by the ultrasonic atomization method was 10-50 nm while with the electrostatic method was 5-25 nm. In addition, the size of primary large particle found to be decreased from 200 nm to 50 nm with increasing electric field up to 15 kV. The GDC powder synthesized by the electrostatic atomization exhibited reduced crystallite size, particle size, and similar electrical conductivity compared to GDC powder synthesized by ultrasonic atomization. This work demonstrated the benefits of the electrostatic atomization for producing smaller-sized GDC nanopowders for the application in intermediate temperature solid oxide fuel cells.",
keywords = "Aerosol flame deposition (AFD), Electrostatic atomization, Gadolinium doped ceria (GDC), Nanopowders, Solid oxide fuel cells (SOFCs), Ultrasonic atomization",
author = "Jongmo Im and Inyu Park and Shin, {Dong Wook}",
year = "2012",
month = "4",
day = "1",
doi = "10.1016/j.ceramint.2011.10.041",
language = "English",
volume = "38",
pages = "2051--2058",
journal = "Ceramics International",
issn = "0272-8842",
number = "3",

}

Effect of atomization methods on the size and morphology of Gd 0.1Ce 0.9O 2-δ powder synthesized by aerosol flame synthesis. / Im, Jongmo; Park, Inyu; Shin, Dong Wook.

In: Ceramics International, Vol. 38, No. 3, 01.04.2012, p. 2051-2058.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of atomization methods on the size and morphology of Gd 0.1Ce 0.9O 2-δ powder synthesized by aerosol flame synthesis

AU - Im, Jongmo

AU - Park, Inyu

AU - Shin, Dong Wook

PY - 2012/4/1

Y1 - 2012/4/1

N2 - Nano-sized gadolinium doped ceria (GDC) powders were successfully synthesized by aerosol flame deposition (AFD) with two different atomization methods; ultrasonic and electrostatic atomization. The effect of the atomization method on the size and morphology of GDC particles were investigated. It was observed that the diameter range of the GDC small primary particles synthesized by the ultrasonic atomization method was 10-50 nm while with the electrostatic method was 5-25 nm. In addition, the size of primary large particle found to be decreased from 200 nm to 50 nm with increasing electric field up to 15 kV. The GDC powder synthesized by the electrostatic atomization exhibited reduced crystallite size, particle size, and similar electrical conductivity compared to GDC powder synthesized by ultrasonic atomization. This work demonstrated the benefits of the electrostatic atomization for producing smaller-sized GDC nanopowders for the application in intermediate temperature solid oxide fuel cells.

AB - Nano-sized gadolinium doped ceria (GDC) powders were successfully synthesized by aerosol flame deposition (AFD) with two different atomization methods; ultrasonic and electrostatic atomization. The effect of the atomization method on the size and morphology of GDC particles were investigated. It was observed that the diameter range of the GDC small primary particles synthesized by the ultrasonic atomization method was 10-50 nm while with the electrostatic method was 5-25 nm. In addition, the size of primary large particle found to be decreased from 200 nm to 50 nm with increasing electric field up to 15 kV. The GDC powder synthesized by the electrostatic atomization exhibited reduced crystallite size, particle size, and similar electrical conductivity compared to GDC powder synthesized by ultrasonic atomization. This work demonstrated the benefits of the electrostatic atomization for producing smaller-sized GDC nanopowders for the application in intermediate temperature solid oxide fuel cells.

KW - Aerosol flame deposition (AFD)

KW - Electrostatic atomization

KW - Gadolinium doped ceria (GDC)

KW - Nanopowders

KW - Solid oxide fuel cells (SOFCs)

KW - Ultrasonic atomization

UR - http://www.scopus.com/inward/record.url?scp=84857040830&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2011.10.041

DO - 10.1016/j.ceramint.2011.10.041

M3 - Article

AN - SCOPUS:84857040830

VL - 38

SP - 2051

EP - 2058

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 3

ER -