Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 서영웅 | - |
dc.date.accessioned | 2018-02-27T01:12:28Z | - |
dc.date.available | 2018-02-27T01:12:28Z | - |
dc.date.issued | 2016-03 | - |
dc.identifier.citation | CATALYSIS TODAY, v. 265, Page. 254-263 | en_US |
dc.identifier.issn | 0920-5861 | - |
dc.identifier.issn | 1873-4308 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0920586115004447?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/40662 | - |
dc.description.abstract | In Cu/Zn/Zr precursors prepared by coprecipitation, Zr ions showed no effect on a substitution level of Cu2+ by Zn2+ in the zincian malachite (zM) and were not incorporated into zM lattice upon precipitation and subsequent ageing. As hydroxyl-rich Zr aggregates were precipitated independent of mixed Cu/Zn precipitates, they served as a barrier to formation of larger Cu/Zn particles during precipitation and transformation into Cu/Zn needles during ageing. After calcination of Cu/Zn/Zr precursors with higher Zr contents, smaller CuO/ZnO particles were produced in between which amorphous ZrO2 was situated. Upon reduction of CuO/ZnO/ZrO2 with more Zr, this type of ZrO2 resulted in formation of smaller Cu-0 particles yielding the higher Cu dispersion. However, the specific copper surface area and catalytic activity of the reduced Cu/ZnO/ZrO2 exhibited a volcano-type relationship with the Zr/( Cu + Zn) ratio. This could be a combined result between the lower amount of total Cu and the higher Cu dispersion. (C) 2015 Elsevier B.V. All rights reserved. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Cu/ZnO/ZrO2 | en_US |
dc.subject | Precursor structure | en_US |
dc.subject | Amorphous zirconia | en_US |
dc.subject | Specific copper surface area | en_US |
dc.subject | Support | en_US |
dc.title | Role of ZrO2 in Cu/ZnO/ZrO2 catalysts prepared from the precipitated Cu/Zn/Zr precursors | en_US |
dc.type | Article | en_US |
dc.relation.volume | 265 | - |
dc.identifier.doi | 10.1016/j.cattod.2015.07.053 | - |
dc.relation.page | 254-263 | - |
dc.relation.journal | CATALYSIS TODAY | - |
dc.contributor.googleauthor | Jeong, Cheonwoo | - |
dc.contributor.googleauthor | Suh, Young-Woong | - |
dc.relation.code | 2016002882 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL ENGINEERING | - |
dc.identifier.pid | ywsuh | - |
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