Effect of ball milling time on the properties of nickel oxide-samarium-doped cerium composite anodes for solid oxide fuel cells

Nor Fatina Raduwan, S. A.Muhammed Ali, Mustafa Anwar, Andanastuti Muchtar, Mahendra Rao Somalu

Research output: Contribution to journalArticle

Abstract

The powder characteristics of composites under different processing conditions, such as milling time, must be elucidated before fabricating electrodes with porous structures for fuel cell applications. Milling time is an important parameter in producing pure composite powders with fine crystallite size and affects the densification of the sintered pellet and the electrical performance of the cell. X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses were conducted to characterise nickel-oxide-samarium-doped cerium (NiO-SDC) powders milled for different durations (2, 12, and 24 h). Field-emission scanning electron microscopy (FESEM) analysis was performed to clarify the porosity of the sintered pellets. Density was determined using Archimedes method and was found to decrease after the reduction of the anode pellets. The XRD analysis of the composite anodes showed good chemical compatibility between the NiO and SDC. The TEM analysis of the as-prepared powders indicated that the particle size of the powder was within the nanometre range. This finding was confirmed by the FESEM micrograph of the sintered pellets. The porosity of the sintered pellets (before and after reduction) ranged from 20% to 40% and was considered sufficient for anode materials in solid oxide fuel cells (SOFC).

Original languageEnglish
Pages (from-to)16-24
Number of pages9
JournalInternational Journal of Materials and Product Technology
Volume59
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Samarium
Nickel oxide
Ball milling
Cerium
Solid oxide fuel cells (SOFC)
Anodes
Powders
Composite materials
Field emission
Porosity
Transmission electron microscopy
Scanning electron microscopy
Crystallite size
Densification
Density (specific gravity)
X ray diffraction analysis
Fuel cells
Particle size
X ray diffraction
Electrodes

Keywords

  • Ball milling time
  • Composite anode
  • Density
  • Grain size
  • NiO-SDC
  • Particle size
  • Pellet
  • Porosity
  • Sintering
  • SOFC
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Effect of ball milling time on the properties of nickel oxide-samarium-doped cerium composite anodes for solid oxide fuel cells. / Raduwan, Nor Fatina; Ali, S. A.Muhammed; Anwar, Mustafa; Muchtar, Andanastuti; Somalu, Mahendra Rao.

In: International Journal of Materials and Product Technology, Vol. 59, No. 1, 01.01.2019, p. 16-24.

Research output: Contribution to journalArticle

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