Facile Structure Tuning of a Methanol-Synthesis Catalyst towards the Direct Synthesis of Dimethyl Ether from Syngas
- Title
- Facile Structure Tuning of a Methanol-Synthesis Catalyst towards the Direct Synthesis of Dimethyl Ether from Syngas
- Author
- 서영웅
- Keywords
- bifunctional catalysts; heterogeneous catalysis; precipitation; precursor chemistry; nanostructures
- Issue Date
- 2017-12
- Publisher
- WILEY-V C H VERLAG GMBH
- Citation
- CHEMCATCHEM, v. 9, no. 24, page. 4484-4489
- Abstract
- Heterogeneous catalysts of bifunctionality offer improved process efficiency and enhanced product yield in multistep chemical transformations conducted in a consecutive manner. However, this has seldom been realized in coprecipitated catalysts owing to the complexity of the synthesis. By adjusting the synthesis protocol of an industrial methanol-synthesis catalyst as a model system, herein we demonstrate the bifunctional effect of Al2O3/Cu/ZnO catalysts to enable the direct production of dimethyl ether from synthesis gas with yields that are 2-3-fold higher than those obtained with their conventional counterparts, with a greater number of accessible Cu surface atoms and more Al2O3 acid sites existing at the external particle surface. This is achieved by preparing the fully developed Cu,Zn precursor of a specific structure with surface-decorated Al species. Our approach paves the way towards the rational design of multicomponent precipitated catalysts with tunable bifunctionality for practical cascade reactions.
- URI
- https://onlinelibrary.wiley.com/doi/abs/10.1002/cctc.201701167https://repository.hanyang.ac.kr/handle/20.500.11754/116637
- ISSN
- 1867-3880; 1867-3899
- DOI
- 10.1002/cctc.201701167
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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