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 |
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Pages (from-to) | 12402-12408 |
Number of pages | 7 |
Journal | International Journal of Hydrogen Energy |
Volume | 39 |
Issue number | 23 |
DOIs | |
Publication status | Published - 2014 Aug 4 |
Bibliographical 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 ).
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