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Palladium core–porous silica shell-nanoparticles for catalyzing the hydrogenation of 4-carboxybenzaldehyde

Paper ID Volume ID Publish Year Pages File Format Full-Text
51887 46857 2008 4 PDF Available
Title
Palladium core–porous silica shell-nanoparticles for catalyzing the hydrogenation of 4-carboxybenzaldehyde
Abstract

Pd@SiO2 core–shell-particles were prepared by coating silica onto the surface of Pd–polyvinylpyrrolidone (PVP) colloids, according to the Stober method. These particles were characterized with SEM, TEM, nitrogen adsorption/desorption, XRD, CO chemisorption, and were used to catalyze the hydrogenation of 4-carboxybenzaldehyde (4-CBA) to p-toluic acid (PT). The maximum PT yield (around 99%) occurred at 160–175 °C, which was much lower than the temperature (250–270 °C) used in the commercial terephthalic acid refining process (with a Pd/C catalyst).

Keywords
Hydrogenation catalysts; Pd@SiO2; Core–shell-nanoparticles; 4-Carboxy-benzaldehyde; Porous shell structure
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Palladium core–porous silica shell-nanoparticles for catalyzing the hydrogenation of 4-carboxybenzaldehyde
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 13, 20 July 2008, Pages 2257–2260
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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