Core-shell structured, nano-Pd-embedded SiO2-Al2O3 catalyst (Pd@SiO2-Al2O3) for direct hydrogen peroxide synthesis from hydrogen and oxygen
DC Field | Value | Language |
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dc.contributor.author | Seo, Myung-gi | - |
dc.contributor.author | Kim, Seongmin | - |
dc.contributor.author | Lee, Dae-Won | - |
dc.contributor.author | Jeong, Ha Eun | - |
dc.contributor.author | Lee, Kwan-Young | - |
dc.date.accessioned | 2021-09-04T03:00:30Z | - |
dc.date.available | 2021-09-04T03:00:30Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2016-02-05 | - |
dc.identifier.issn | 0926-860X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/89542 | - |
dc.description.abstract | In our previous studies, we proved that core/shell-structured Pd/SiO2 catalysts are more active for direct hydrogen peroxide synthesis than the conventional, impregnated Pd/SiO2 catalysts. In this study, the topic of our previous studies was extended to core/shell Pd/SiO2-Al2O3 catalysts, through which we examined the influence of acidic shell oxides (SiO2-Al2O3) on the hydrogen peroxide formation activity. The catalysts were prepared based on the Stober method, and the reaction tests were performed by adding H3PO4 (0-0.03 M) and in the presence of KBr (0.9 mM). It was proved that the surface Bronsted acid sites promote hydrogen peroxide formation activity in a manner similar to protons dissolved in a reaction medium (ethanol-water). It was supposed that the influences of heterogeneous and homogeneous acids on catalytic activity are related to how much those acids promote the adsorption of Br- ions on the Pd surface. The highest H2O2 production rate was approximately 470 mmol H2O2/g(pd) h, which was obtained using core/shell Pd/SiO2-Al2O3 catalysts under specific H3PO4 concentrations. This rate was higher than the highest value (similar to 420 mmol H2O2/g(pd) h) achieved using core/shell Pd/SiO2 catalysts. (C) 2015 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | PALLADIUM CATALYSTS | - |
dc.subject | PD/SIO2 CATALYST | - |
dc.subject | AQUEOUS-MEDIUM | - |
dc.subject | H2O2 | - |
dc.subject | O-2 | - |
dc.subject | H-2 | - |
dc.subject | OXIDATION | - |
dc.subject | CHLORIDE | - |
dc.subject | WATER | - |
dc.subject | IONS | - |
dc.title | Core-shell structured, nano-Pd-embedded SiO2-Al2O3 catalyst (Pd@SiO2-Al2O3) for direct hydrogen peroxide synthesis from hydrogen and oxygen | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kwan-Young | - |
dc.identifier.doi | 10.1016/j.apcata.2015.11.040 | - |
dc.identifier.scopusid | 2-s2.0-84949489355 | - |
dc.identifier.wosid | 000369681000009 | - |
dc.identifier.bibliographicCitation | APPLIED CATALYSIS A-GENERAL, v.511, pp.87 - 94 | - |
dc.relation.isPartOf | APPLIED CATALYSIS A-GENERAL | - |
dc.citation.title | APPLIED CATALYSIS A-GENERAL | - |
dc.citation.volume | 511 | - |
dc.citation.startPage | 87 | - |
dc.citation.endPage | 94 | - |
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 | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | PALLADIUM CATALYSTS | - |
dc.subject.keywordPlus | PD/SIO2 CATALYST | - |
dc.subject.keywordPlus | AQUEOUS-MEDIUM | - |
dc.subject.keywordPlus | H2O2 | - |
dc.subject.keywordPlus | O-2 | - |
dc.subject.keywordPlus | H-2 | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | CHLORIDE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | IONS | - |
dc.subject.keywordAuthor | Palladium catalyst | - |
dc.subject.keywordAuthor | Core-shell structured catalyst | - |
dc.subject.keywordAuthor | Palladium nanoparticle | - |
dc.subject.keywordAuthor | Silica-alumina | - |
dc.subject.keywordAuthor | Direct hydrogen peroxide synthesis | - |
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