Effects of Al3+ precipitation onto primitive amorphous Cu-Zn precipitate on methanol synthesis over Cu/ZnO/Al2O3 catalyst
- Authors
- Jeong, Cheonwoo; Park, Jongha; Kim, Jinsung; Baik, Joon Hyun; Suh, Young-Woong
- Issue Date
- Feb-2019
- Publisher
- 한국화학공학회
- Keywords
- Methanol Synthesis; Cu/ZnO/Al2O3; Sequential Precipitation; Precursor Phase
- Citation
- Korean Journal of Chemical Engineering, v.36, no.2, pp 191 - 196
- Pages
- 6
- Journal Title
- Korean Journal of Chemical Engineering
- Volume
- 36
- Number
- 2
- Start Page
- 191
- End Page
- 196
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/146894
- DOI
- 10.1007/s11814-018-0186-6
- ISSN
- 0256-1115
1975-7220
- Abstract
- The phase of Cu,Zn,Al precursors strongly affects the activity of their final catalysts. Herein, the Cu,Zn,Al precursor was prepared by precipitation of Al3+ onto primitive, amorphous Cu,Zn precipitate. This precursor turned out to be a phase mixture of zincian malachite and hydrotalcite in which the latter phase was less abundant compared to the co-precipitated precursor. The final catalyst derived from this precursor exhibited a little higher copper surface area and methanol synthesis activity than the co-precipitated counterpart. Therefore, the two precursor phases need to be mixed in an adequate proportion for the preparation of active Cu/ZnO/Al2O3 catalyst.
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