Effect of compaction pressure on the performance of a non-symmetrical NiO–SDC/SDC composite anode fabricated by conventional furnace

Mohadeseh Seyednezhad, Armin Rajabi, Andanastuti Muchtar, Mahendra Rao Somalu, Poorya Ooshaksaraei

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The electrochemical performance of NiO–SDC/SDC anode was studied. The anode was compacted by pressing, after which sintering was conducted in a conventional furnace at 1200 °C. A high-energy ball mill was used to mix the Sm0.2Ce0.8O1.9 (SDC) nanopowder and NiO. A pressing technique was applied to fabricate the NiO–SDC/SDC anode cells. The effect of different compaction pressures (200, 300, and 400 MPa) on the performance of the anodes was investigated via electrochemical impedance spectroscopy at an intermediate temperature range (600–800 °C). The nanoindentation technique and Archimedes method, which were used to measure stiffness and bulk density, respectively, revealed that increases in porosity were correlated with decreases in compaction pressure. High electrochemical performance can be achieved if the compaction pressure is decreased and the operating temperature is increased because of hydrogen spillover during the operation.

Original languageEnglish
Pages (from-to)77-81
Number of pages5
JournalJournal of Asian Ceramic Societies
Volume5
Issue number2
DOIs
Publication statusPublished - 1 Jun 2017

Fingerprint

Anodes
Furnaces
Compaction
Composite materials
Ball mills
Nanoindentation
Electrochemical impedance spectroscopy
Density (specific gravity)
Hydrogen
Sintering
Porosity
Stiffness
Temperature

Keywords

  • Compaction
  • Nano-indentation
  • Sintering
  • Solid oxide fuel cells
  • Stiffness

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Effect of compaction pressure on the performance of a non-symmetrical NiO–SDC/SDC composite anode fabricated by conventional furnace. / Seyednezhad, Mohadeseh; Rajabi, Armin; Muchtar, Andanastuti; Somalu, Mahendra Rao; Ooshaksaraei, Poorya.

In: Journal of Asian Ceramic Societies, Vol. 5, No. 2, 01.06.2017, p. 77-81.

Research output: Contribution to journalArticle

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