Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김영범 | - |
dc.date.accessioned | 2018-03-09T04:16:02Z | - |
dc.date.available | 2018-03-09T04:16:02Z | - |
dc.date.issued | 2013-03 | - |
dc.identifier.citation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS; 2013, 15, 20, p7520-p7525, 6p. | en_US |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.uri | http://pubs.rsc.org/-/content/articlehtml/2013/cp/c3cp50996f | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/44039 | - |
dc.description.abstract | Because noble metal catalysts (e. g. Pt) are one of the main contributors to low-temperature (<500 degrees C) fuel cell costs, significant efforts have been made to lower the noble metal loading in constructing fuel cell electrodes. In this work, ultra-thin (similar to 10 nm) platinum (Pt) cathode/catalyst layers were patterned by atomic layer deposition (ALD) and tested as catalytic electrodes (cathode) for low-temperature solid oxide fuel cells. We found that 180 cycles or approximately 10 nm of ALD Pt, with a Pt loading of only 0.02 mg cm(-2), were sufficient for the purpose of a catalytic cathode. Furthermore, this ALD Pt resulted in fuel cell performance comparable to that achieved by 80 nm-thick sputtered Pt. Transmission electron microscope (TEM) observations revealed the optimized number of ALD cycles of Pt for the catalytic electrode, which renders both contiguity and high triple-phase boundary (TPB) density. This result suggests the ability to significantly reduce Pt loading, thereby reducing the cost, and furthermore, can be easily applied to high performance fuel cells with complex 3-D structures. | en_US |
dc.description.sponsorship | J.A. gratefully acknowledges financial support from Kwanjeong Educational Foundation. J.A. thanks Joonsuk Park for TEM imaging for ALD Pt thickness measurements. Y.-B. K. acknowledges financial support from Korea National Research Foundation (contract #: 2012R1A1A1014689) and the Industry Digital Park at Hanyang University (contract #: 201200000000621). Also Y.-B. K. gratefully acknowledges Nano Institute of Science and Technology at Hanyang University for sharing experimental equipment. The authors also thank Michael C. Langston for careful proof-reading. J.A. and F. B. P. gratefully acknowledge partial support from the Center on Nanostructuring for Efficient Energy Conversion (CNEEC) at Stanford University, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001060. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND | en_US |
dc.subject | OXIDE FUEL-CELLS | en_US |
dc.subject | LOW-TEMPERATURE | en_US |
dc.subject | HIGH-PERFORMANCE | en_US |
dc.subject | PALLADIUM | en_US |
dc.subject | FILMS | en_US |
dc.title | Ultra-thin platinum catalytic electrodes fabricated by atomic layer deposition | en_US |
dc.type | Article | en_US |
dc.relation.no | 20 | - |
dc.relation.volume | 15 | - |
dc.identifier.doi | 10.1039/c3cp50996f | - |
dc.relation.page | 7520-7525 | - |
dc.relation.journal | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.contributor.googleauthor | An, Jihwan | - |
dc.contributor.googleauthor | Kim, Young-Beom | - |
dc.contributor.googleauthor | Prinz, Fritz B. | - |
dc.relation.code | 2013011678 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MECHANICAL ENGINEERING | - |
dc.identifier.pid | ybkim | - |
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