DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jaeha | - |
dc.contributor.author | Shin, Dongjae | - |
dc.contributor.author | Lee, Eunwon | - |
dc.contributor.author | Li, Chengbin | - |
dc.contributor.author | Kim, Ji Man | - |
dc.contributor.author | Han, Jeong Woo | - |
dc.contributor.author | Kim, Do Heui | - |
dc.date.accessioned | 2022-02-11T01:20:06Z | - |
dc.date.available | 2022-02-11T01:20:06Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2022-05-15 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/109305 | - |
dc.description.abstract | Pt/CeO2 has gained much attention for their high activity in low-temperature (LT) water-gas shift (WGS) reaction. However, the inclusion of H2 in the feed as in the practical reaction condition significantly degrades the LT-WGS activity of the Pt/CeO2 catalysts. In this contribution, the activity of Pt/CeO2 catalyst under the feed gas containing excess H2 (20 vol% of H2) was enhanced more than three times by forming CeO2 nano-patches on Pt nano-particles. Both in-situ diffuse reflectance infrared Fourier transform spectroscopy and density functional theory calculation results indicate that dissociated H2 on the Pt nano-particle inhibits the activity of the Pt/CeO2 catalysts by occupying the active sites (Pt nano-particle-CeO2 interface). On the other hand, thin CeO2 nano-patches on Pt nano-particle suppressed the H2 dissociation. As a result, the WGS reactivity of the active Pt nano-particle-CeO2 interface was less affected by H2, granting the catalysts the high activity under the practical reaction conditions. | - |
dc.language | English | - |
dc.publisher | Elsevier BV | - |
dc.relation.isPartOf | Applied Catalysis B: Environmental | - |
dc.title | Alleviating inhibitory effect of H2 on low-temperature water-gas shift reaction activity of Pt/CeO2 catalyst by forming CeO2 nano-patches on Pt nano-particles | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.apcatb.2021.121038 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Applied Catalysis B: Environmental, v.305 | - |
dc.identifier.wosid | 000782990900002 | - |
dc.citation.title | Applied Catalysis B: Environmental | - |
dc.citation.volume | 305 | - |
dc.contributor.affiliatedAuthor | Han, Jeong Woo | - |
dc.identifier.scopusid | 2-s2.0-85121976160 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | METAL-SUPPORT INTERACTIONS | - |
dc.subject.keywordPlus | PLATINUM SINGLE ATOMS | - |
dc.subject.keywordPlus | CO OXIDATION | - |
dc.subject.keywordPlus | ADSORBED CO | - |
dc.subject.keywordPlus | IN-SITU | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | AU | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordAuthor | CeO2 nano-patch | - |
dc.subject.keywordAuthor | Excess H2 | - |
dc.subject.keywordAuthor | In-situ diffuse reflectance infrared Fourier transform spectroscopy | - |
dc.subject.keywordAuthor | Low temperature water-gas shift reaction | - |
dc.subject.keywordAuthor | Pt nano-particle | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
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