Use of tetraethylammonium bicarbonate as a precipitation agent on the preparation of coprecipitated Cu/ZnO catalysts
DC Field | Value | Language |
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dc.contributor.author | Jeong, Cheonwoo | - |
dc.contributor.author | Kim, Taewoo | - |
dc.contributor.author | Kim, Jinsung | - |
dc.contributor.author | Suh, Young-Woong | - |
dc.date.accessioned | 2022-07-13T20:58:51Z | - |
dc.date.available | 2022-07-13T20:58:51Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2017-07 | - |
dc.identifier.issn | 0926-860X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152047 | - |
dc.description.abstract | c Cu/ZnO catalysts were prepared by coprecipitation using tetraethylammonium bicarbonate (TEA(+)HCO(3)(-)), and their properties and methanol synthesis activities were compared to those of the catalysts prepared using Na+HCO3- usually employed for commercial Cu/ZnO/(Al2O3) catalysts. When washed fully, TEA(+)- and Na+-based precursors showed typical zincian malachite (zM) without any other structures, and both catalysts obtained after calcination and H-2 reduction exhibited the similar specific copper surface area and, in turn, the similar methanol productivity. Since this result explains that TEA(+) does not affect zM structure if Cu,Zn precipitate is fully washed, no washed and less washed TEA(+)- and Na+-based precursors were prepared. It was interesting that all TEA(+)-based catalysts exhibited the similar methanol productivity irrespective of the washing efficiency whereas Na+-based catalyst containing more residual Na+ showed the smaller copper surface area and lower methanol productivity (i.e., linear correlation between the two parameters). This resulted from the inhibiting effect of Na+ on the degree of Cu2+ substitution by Zn2+ and the formation of high-temperature carbonate, consequently leading to a lower catalytic activity. These negative effects of Na+ were absent or lessened when TEA(+)HCO(3)(-) was used as a precipitation agent, which is effective in preparing an active methanol synthesis catalyst. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Use of tetraethylammonium bicarbonate as a precipitation agent on the preparation of coprecipitated Cu/ZnO catalysts | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Suh, Young-Woong | - |
dc.identifier.doi | 10.1016/j.apcata.2017.04.023 | - |
dc.identifier.scopusid | 2-s2.0-85019020980 | - |
dc.identifier.wosid | 000403992300005 | - |
dc.identifier.bibliographicCitation | APPLIED CATALYSIS A-GENERAL, v.541, pp.35 - 41 | - |
dc.relation.isPartOf | APPLIED CATALYSIS A-GENERAL | - |
dc.citation.title | APPLIED CATALYSIS A-GENERAL | - |
dc.citation.volume | 541 | - |
dc.citation.startPage | 35 | - |
dc.citation.endPage | 41 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
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 | METHANOL SYNTHESIS CATALYSTS | - |
dc.subject.keywordPlus | COPPER | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | HYDROXYCARBONATES | - |
dc.subject.keywordPlus | PRECURSORS | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | STATE | - |
dc.subject.keywordAuthor | Methanol synthesis | - |
dc.subject.keywordAuthor | Cu/ZnO | - |
dc.subject.keywordAuthor | Coprecipitation | - |
dc.subject.keywordAuthor | Tetraethylammonium bicarbonate | - |
dc.subject.keywordAuthor | Residual sodium | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0926860X17301904?via%3Dihub | - |
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