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  Stereo- and Chemoselective Character of Supported CeO2 Catalysts for Continuous-Flow Three-Phase Alkyne Hydrogenation

Vilé, G., Wrabetz, S., Floryan, L., Schuster, M. E., Girgsdies, F., Teschner, D., et al. (2014). Stereo- and Chemoselective Character of Supported CeO2 Catalysts for Continuous-Flow Three-Phase Alkyne Hydrogenation. ChemCatChem, 6(7), 1928-1934. doi:10.1002/cctc.201402124.

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cctc201402124_manuscript.pdf (Any fulltext), 462KB
 
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 Creators:
Vilé, Gianvito1, Author
Wrabetz, Sabine2, Author           
Floryan, Leonard1, Author
Schuster, Manfred Erwin2, Author           
Girgsdies, Frank2, Author           
Teschner, Detre2, Author           
Pérez-Ramírez, Javier1, Author
Affiliations:
1Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, CH-8093 Zurich (Switzerland), ou_persistent22              
2Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Free keywords: alkynes; cerium; chemoselectivity; hydrogenation; supported catalysts
 Abstract: TiO2-, Al2O3-, and ZrO2-supported CeO2 catalysts with different Ce loadings were prepared by wet impregnation of the carriers with an acidified solution of cerium ammonium nitrate. The calcined catalysts were characterized by bulk and surface-sensitive techniques, which included microcalorimetry, and evaluated in the three-phase hydrogenation of alkynes under continuous-flow conditions at variable temperature (293–413 K) and pressure (1–90 bar). A number of acetylenic compounds, which contain terminal or internal triple bonds, conjugated unsaturations, and additional functionalities, were systematically assessed. The results revealed the full stereo- and chemoselective character of the ceria catalysts, which outperform the well-known Lindlar catalyst, and open promising perspectives for the revolutionary use of a cost-effective oxide for the production of olefinic compounds in the vitamin and fine chemical industries.

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Language(s): eng - English
 Dates: 2014-03-122014-04-222014-06-02
 Publication Status: Published online
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/cctc.201402124
 Degree: -

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Title: ChemCatChem
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 6 (7) Sequence Number: - Start / End Page: 1928 - 1934 Identifier: Other: 1867-3880
CoNE: https://pure.mpg.de/cone/journals/resource/1867-3880