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DC Field | Value | Language |
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dc.citation.endPage | 367 | - |
dc.citation.startPage | 361 | - |
dc.citation.title | JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | - |
dc.citation.volume | 89 | - |
dc.contributor.author | Kim, Jong Gyeong | - |
dc.contributor.author | Lee, Bongho | - |
dc.contributor.author | Pham, Nguyet N. T. | - |
dc.contributor.author | Lee, Seung Geol | - |
dc.contributor.author | Pak, Chanho | - |
dc.date.accessioned | 2024-03-20T11:35:10Z | - |
dc.date.available | 2024-03-20T11:35:10Z | - |
dc.date.created | 2024-03-20 | - |
dc.date.issued | 2020-09 | - |
dc.description.abstract | The performance of a heterogeneous catalyst is determined by the interaction between the support and the metal active site of the catalyst. To investigate the effect of the interaction between sulfur in sulfur-doped ordered mesoporous carbon (SOMC) and palladium (Pd) on hydrogen evolution reaction (HER) activity, a catalyst was prepared with low Pd content supported on SOMC (Pd/SOMC). Sulfur was expected to serve as an anchor for Pd to form smaller nanoparticles. Transmission electron microscopy confirmed that the Pd particle size in Pd/SOMC was smaller than that of Pd supported on pristine ordered mesoporous carbon (Pd/OMC), indicating the improvement of Pd dispersion by the anchoring of sulfur to Pd. HER activity of these catalysts was analyzed from 0.1 V to -0.3 V with a scan rate of 1 mV/s in N-2-saturated 0.1 M HClO4 electrolyte. Despite the smaller Pd particle size in Pd/SOMC, Pd/OMC showed better HER activity (7.38 mA/cm(2) at -0.15 V) than Pd/SOMC (2.71 mA/cm(2)). Moreover, overpotential at -10 mA/cm 2 for Pd/OMC was 90 mV lower than that for Pd/SOMC. Density functional theory calculations proved that the increase in the binding energy of hydrogen on the Pd in the Pd/SOMC is related to the decrease in HER activity. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved. | - |
dc.identifier.bibliographicCitation | JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.89, pp.361 - 367 | - |
dc.identifier.doi | 10.1016/j.jiec.2020.06.003 | - |
dc.identifier.issn | 1226-086X | - |
dc.identifier.scopusid | 2-s2.0-85087311449 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81710 | - |
dc.identifier.wosid | 000552706400034 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Relationship between hydrogen binding energy and activity for hydrogen evolution reaction by palladium supported on sulfur-doped ordered mesoporous carbon | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Engineering, Chemical | - |
dc.relation.journalResearchArea | Chemistry; Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | Hydrogen evolution reaction | - |
dc.subject.keywordAuthor | Palladium-sulfur interaction | - |
dc.subject.keywordAuthor | Electrocatalysis | - |
dc.subject.keywordAuthor | Water electrolysis | - |
dc.subject.keywordAuthor | Ordered mesoporous carbon | - |
dc.subject.keywordPlus | GENERALIZED GRADIENT APPROXIMATION | - |
dc.subject.keywordPlus | CATALYST SUPPORTS | - |
dc.subject.keywordPlus | OXYGEN REDUCTION | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | SIZE | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | ACID | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
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