Nanoporous silver cathode surface-treated by aerosol-assisted chemical vapor deposition of gadolinia-doped ceria for intermediate-temperature solid oxide fuel cells
DC Field | Value | Language |
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dc.contributor.author | Choi, Hyeon Rak | - |
dc.contributor.author | Neoh, Ke Chean | - |
dc.contributor.author | Choi, Hyung Jong | - |
dc.contributor.author | Han, Gwon Deok | - |
dc.contributor.author | Jang, Dong Young | - |
dc.contributor.author | Kim, Daejoong | - |
dc.contributor.author | Shim, Joon Hyung | - |
dc.date.accessioned | 2021-09-02T05:00:33Z | - |
dc.date.available | 2021-09-02T05:00:33Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2018-10-31 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/72427 | - |
dc.description.abstract | Herein, a nanoporous silver surface treated with gadolinia-doped ceria (GDC) is evaluated as a cathode for intermediate-temperature solid oxide fuel cells operating below 500 degrees C. For uniform surface treatment on the porous silver, aerosol-assisted chemical vapor deposition (AACVD) is used; it is a non-vacuum process and is considered as an economical alternative to the expensive vacuum-environment thin-film fabrication methods. Consequently, a uniform coating of AACVD GDC on the Ag surface is successfully achieved, which is confirmed by high-resolution transmission electron microscopy. The optimized amount of AACVD GDC enhances fuel cell performance compared to cells with bare Ag, in terms of the power and long-term stability measured by current voltage characteristics, electrochemical impedance spectroscopy, and potentiostatic amperometry. This performance is even more significant than that from the cell with a platinum cathode, which, to our best knowledge, is known as the best-performing catalyst for solid oxide fuel cells in the intermediate- and low-temperature regimes. The power enhancement is attributed to the improved kinetics with the GDC surface coating; moreover, this oxide decoration is proven effective in preventing the thermal agglomeration of Ag, as confirmed by the morphology comparison before and after the long-term test. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | ATOMIC LAYER DEPOSITION | - |
dc.subject | ELECTRODE MATERIALS | - |
dc.subject | THIN-FILMS | - |
dc.subject | PERFORMANCE | - |
dc.subject | SM0.5SR0.5COO3 | - |
dc.subject | MECHANISM | - |
dc.subject | SOFCS | - |
dc.subject | (LA | - |
dc.title | Nanoporous silver cathode surface-treated by aerosol-assisted chemical vapor deposition of gadolinia-doped ceria for intermediate-temperature solid oxide fuel cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shim, Joon Hyung | - |
dc.identifier.doi | 10.1016/j.jpowsour.2018.09.031 | - |
dc.identifier.scopusid | 2-s2.0-85053790921 | - |
dc.identifier.wosid | 000449447800030 | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER SOURCES, v.402, pp.246 - 251 | - |
dc.relation.isPartOf | JOURNAL OF POWER SOURCES | - |
dc.citation.title | JOURNAL OF POWER SOURCES | - |
dc.citation.volume | 402 | - |
dc.citation.startPage | 246 | - |
dc.citation.endPage | 251 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | ATOMIC LAYER DEPOSITION | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SM0.5SR0.5COO3 | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | SOFCS | - |
dc.subject.keywordPlus | (LA | - |
dc.subject.keywordAuthor | Solid oxide fuel cells | - |
dc.subject.keywordAuthor | Aerosol-assisted chemical vapor deposition | - |
dc.subject.keywordAuthor | Gadolinia-doped ceria | - |
dc.subject.keywordAuthor | Silver | - |
dc.subject.keywordAuthor | Cathode | - |
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