Application of dense nano-thin platinum films for low-temperature solid oxide fuel cells by atomic layer deposition

Sanghoon Ji, Ikwhang Chang, Gu Young Cho, Yoon Ho Lee, Joon Hyung Shim, Suk Won Cha

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Nano-thin platinum (Pt) films with a dense microstructure for low-temperature solid oxide fuel cells (LT-SOFCs) were fabricated by atomic layer deposition (ALD) and were characterized in terms of their micro-structural properties and electrochemical performance. Pt thin films with a purity level of ∼99% were achieved by controlling the O2 pulsing time. The agglomeration behavior of the ALD Pt thin films was characterized by the annealing temperature, becoming extremely severe above 550°C. An LT-SOFC with a 25 nm thick dense ALD Pt cathode layer exhibited a peak power density of ∼110 mW/cm2 at 450°C.

Original languageEnglish
Pages (from-to)12402-12408
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number23
DOIs
Publication statusPublished - 2014 Aug 4

Fingerprint

Atomic layer deposition
solid oxide fuel cells
atomic layer epitaxy
Solid oxide fuel cells (SOFC)
Platinum
platinum
Thin films
Temperature
thin films
agglomeration
radiant flux density
Structural properties
purity
Cathodes
Agglomeration
cathodes
Annealing
microstructure
Microstructure
annealing

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Application of dense nano-thin platinum films for low-temperature solid oxide fuel cells by atomic layer deposition. / Ji, Sanghoon; Chang, Ikwhang; Cho, Gu Young; Lee, Yoon Ho; Shim, Joon Hyung; Cha, Suk Won.

In: International Journal of Hydrogen Energy, Vol. 39, No. 23, 04.08.2014, p. 12402-12408.

Research output: Contribution to journalArticle

Ji, Sanghoon ; Chang, Ikwhang ; Cho, Gu Young ; Lee, Yoon Ho ; Shim, Joon Hyung ; Cha, Suk Won. / Application of dense nano-thin platinum films for low-temperature solid oxide fuel cells by atomic layer deposition. In: International Journal of Hydrogen Energy. 2014 ; Vol. 39, No. 23. pp. 12402-12408.
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