Enhanced activity of CuO/ZnO catalyst on the decomposition of dimethylhexane-1,6-dicarbamate into dimethylhexane-1,6-diisocyanate
DC Field | Value | Language |
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dc.contributor.author | Kim, Jinsung | - |
dc.contributor.author | Jeong, Cheonwoo | - |
dc.contributor.author | Lee, Jae-Hong | - |
dc.contributor.author | Suh, Young-Woong | - |
dc.date.accessioned | 2021-08-03T03:26:12Z | - |
dc.date.available | 2021-08-03T03:26:12Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2018-06 | - |
dc.identifier.issn | 0922-6168 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/32949 | - |
dc.description.abstract | To decompose dimethylhexane-1,6-dicarbamate (HDC) to hexamethylene diisocyanate (HDI), mixed CuO and ZnO catalysts with Cu/(Cu + Zn) ratio of 4 and 8% were prepared by coprecipitation (CP), sequential precipitation (SP) and incipient wetness impregnation (IW). The SP-derived CuO/ZnO catalysts showed higher HDC yields than those derived by CP and IW. The IW method produced CuO/ZnO catalysts consisting of larger CuO and ZnO particles compared to the two precipitation methods. The CP method led to substitution of Zn2+ by Cu2+ in the hydrozincite precursor phase, resulting in higher BET and Cu surface areas of CuO-ZnO catalysts due to intimate intergrowth of nano-sized particles. However, the inherent character of ZnO in the CP-derived catalysts was modified by interfacial contact between CuO and ZnO identified by UV-visible and Raman spectra. In contrast, the properties of CuO and ZnO, as well as the relatively large surface areas, were kept in the SP-derived catalysts owing to deposition of Cu precipitates to fully aged Zn precipitates. This is believed to be a benefit of the SP method for the reaction. Therefore, our preparation approach has great potential to be extended to various mixed oxide catalysts. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER | - |
dc.title | Enhanced activity of CuO/ZnO catalyst on the decomposition of dimethylhexane-1,6-dicarbamate into dimethylhexane-1,6-diisocyanate | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Suh, Young-Woong | - |
dc.identifier.doi | 10.1007/s11164-018-3382-4 | - |
dc.identifier.scopusid | 2-s2.0-85043679625 | - |
dc.identifier.wosid | 000432844000012 | - |
dc.identifier.bibliographicCitation | RESEARCH ON CHEMICAL INTERMEDIATES, v.44, no.6, pp.3787 - 3796 | - |
dc.relation.isPartOf | RESEARCH ON CHEMICAL INTERMEDIATES | - |
dc.citation.title | RESEARCH ON CHEMICAL INTERMEDIATES | - |
dc.citation.volume | 44 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 3787 | - |
dc.citation.endPage | 3796 | - |
dc.type.rims | ART | - |
dc.type.docType | Article; Proceedings Paper | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | METHANOL SYNTHESIS | - |
dc.subject.keywordAuthor | Carbamate decomposition | - |
dc.subject.keywordAuthor | CuO/ZnO | - |
dc.subject.keywordAuthor | Sequential precipitation | - |
dc.subject.keywordAuthor | Coprecipitation | - |
dc.identifier.url | https://link.springer.com/article/10.1007/s11164-018-3382-4 | - |
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