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Effect of hydrotalcite-containing precursors on the performance of Cu/Zn/Al/Zr catalysts for CO2 hydrogenation: Introduction of Cu2+ at different formation stages of precursors

Paper ID Volume ID Publish Year Pages File Format Full-Text
54967 47034 2012 7 PDF Available
Title
Effect of hydrotalcite-containing precursors on the performance of Cu/Zn/Al/Zr catalysts for CO2 hydrogenation: Introduction of Cu2+ at different formation stages of precursors
Abstract

A series of Cu/Zn/Al/Zr catalyst derived from hydrotalcite-containing precursors were prepared by introducing the Cu2+ at different stages of Zn/Al/Zr hydrotalcite-like compounds formation and reconstruction and the catalytic performance for the synthesis of methanol from CO2 hydrogenation was examined. The results showed that the physicochemical properties of the catalysts, such as the Cu2+ content located in the layer structure of precursor, the exposed Cu surface area, the Cu+ and Cu0 content on the reduced surface and the ratio of Cu+/Cu0 were greatly influenced by the Cu2+ introduction procedure. The Cu/Zn/Al/Zr catalyst prepared by adding the Cu2+ into the precursor at the reconstructed stage exhibited the best catalytic performance due to the highest exposed Cu surface area and the ratio of Cu+/Cu0.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (198 K)Download as PowerPoint slideHighlights► Cu/Zn/Al/Zr catalysts were prepared by introducing the Cu2+ at different stages. ► The catalytic performance for the CO2 hydrogenation to methanol was examined. ► Properties of catalysts were greatly influenced by the Cu2+ introduction procedure. ► The catalyst via adding Cu2+ at the reconstructed stage shows the highest activity.

Keywords
Cu/Zn/Al/Zr catalysts; Cu2+ introduction procedure; Hydrotalcite-containing precursor; CO2 hydrogenation; Methanol
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Effect of hydrotalcite-containing precursors on the performance of Cu/Zn/Al/Zr catalysts for CO2 hydrogenation: Introduction of Cu2+ at different formation stages of precursors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 194, Issue 1, 30 October 2012, Pages 9–15
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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