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

doi:10.1016/j.ijhydene.2014.02.081

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

School of Mechanical Engineering

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

40 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 language	English
Pages (from-to)	12402-12408
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	23
DOIs	https://doi.org/10.1016/j.ijhydene.2014.02.081
Publication status	Published - 2014 Aug 4

Keywords

Atomic layer deposition
Dense
Nano-thin
Platinum
Solid oxide fuel cell

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2014.02.081

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@article{db52dbeffc024ca09debd0b414dbe9ed,

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

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.",

keywords = "Atomic layer deposition, Dense, Nano-thin, Platinum, Solid oxide fuel cell",

author = "Sanghoon Ji and Ikwhang Chang and Cho, {Gu Young} and Lee, {Yoon Ho} and Shim, {Joon Hyung} and Cha, {Suk Won}",

note = "Funding Information: This work was partially supported by the Global Frontier R&D Program in the Center for Multiscale Energy System funded by the National Research Foundation under the Ministry of Education, Science and Technology, Korea ( 2011-0031569 ), and was partially supported by a government research fund from the Ministry of Education, Science, and Technology in Korea ( 2011-0029576 ).",

year = "2014",

month = aug,

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doi = "10.1016/j.ijhydene.2014.02.081",

language = "English",

volume = "39",

pages = "12402--12408",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

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number = "23",

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TY - JOUR

T1 - Application of dense nano-thin platinum films for low-temperature solid oxide fuel cells by atomic layer deposition

AU - Ji, Sanghoon

AU - Chang, Ikwhang

AU - Cho, Gu Young

AU - Lee, Yoon Ho

AU - Shim, Joon Hyung

AU - Cha, Suk Won

N1 - Funding Information: This work was partially supported by the Global Frontier R&D Program in the Center for Multiscale Energy System funded by the National Research Foundation under the Ministry of Education, Science and Technology, Korea ( 2011-0031569 ), and was partially supported by a government research fund from the Ministry of Education, Science, and Technology in Korea ( 2011-0029576 ).

PY - 2014/8/4

Y1 - 2014/8/4

N2 - 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.

AB - 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.

KW - Atomic layer deposition

KW - Dense

KW - Nano-thin

KW - Platinum

KW - Solid oxide fuel cell

UR - http://www.scopus.com/inward/record.url?scp=84904764312&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2014.02.081

DO - 10.1016/j.ijhydene.2014.02.081

M3 - Article

AN - SCOPUS:84904764312

SN - 0360-3199

VL - 39

SP - 12402

EP - 12408

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 23

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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