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Effect of structure of CuO/ZnO/Al2O3 composites on catalytic performance for hydrogenation of fatty acid ester

Paper ID Volume ID Publish Year Pages File Format Full-Text
40497 45856 2013 6 PDF Available
Title
Effect of structure of CuO/ZnO/Al2O3 composites on catalytic performance for hydrogenation of fatty acid ester
Abstract

In this work, CuO/ZnO/Al2O3 catalysts were prepared by adjusting the initial alkali concentration in the process of co-precipitation. The correlation between the structure and catalytic activity was studied, and the catalyst derived from LDHs (layered double hydroxides) structure exhibited the highest activity in the hydrogenation of fatty esters as well as high selectivity to fatty alcohol, producing fatty alcohol with a yield above 98%. The high catalytic performance was attributed to relatively high dispersion (small crystal size) and the high reducibility of copper species. In addition, the active species was discussed and the Cu+/Cu0 were supposed to be the active site for the present hydrogenation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (179 K)Download as PowerPoint slideHighlights► The CuO/ZnO/Al2O3 with LDHs structure showed high catalytic activity and selectivity. ► The high activity was due to the high reducibility and small crystal particle size of catalyst. ► Cu+/Cu0 were supposed to be the active species for the hydrogenation of fatty acid esters. ► Fatty alcohol was produced with a yield >98%, it is the best one by comparing to literature.

Keywords
CuO/ZnO/Al2O3; Layered double hydroxide; Hydrogenation; Fatty ester; Higher alcohol
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Effect of structure of CuO/ZnO/Al2O3 composites on catalytic performance for hydrogenation of fatty acid ester
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 452, 15 February 2013, Pages 88–93
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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