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Bifunctional mesoporous organic–inorganic hybrid silica for combined one-step hydrogenation/esterification

Paper ID Volume ID Publish Year Pages File Format Full-Text
42487 45927 2010 8 PDF Available
Title
Bifunctional mesoporous organic–inorganic hybrid silica for combined one-step hydrogenation/esterification
Abstract

Bifunctional mesoporous organic–inorganic hybrid silicas with platinum and propylsulfonic acid group (Pt/SBA15-PrSO3H) were synthesized and tested for the combined one-step hydrogenation/esterification (OHE) reaction, which was employed as a model reaction for catalytic upgrading of biomass-derived bio-oil. The model reagents used were acetic acid and acetaldehyde. Different catalyst synthesis procedures were investigated and compared by varying the functional group incorporation method, platinum loading, reducing agent, etc. The textural and chemical properties of the catalysts made by the different synthesis procedures were characterized and compared with reactivity results. The need to create the organic acid sites prior to platinum incorporation was demonstrated. The efficacy of the bifunctional catalyst system for combined hydrogenation/esterification was demonstrated. Interestingly, the bifunctional Pt/SBA15-PrSO3H catalyst exhibited superior esterification activity with about twice the acetic acid turnover number relative to that with the monofunctional SBA15-PrSO3H catalyst. By combining metallic Pt nanoparticles with strong acid sites, this bifunctional mesoporous hybrid catalyst improved OHE activity and, therefore, has potential for application in the catalytic upgrading of bio-oil.

Graphical abstractBifunctional mesoporous organic–inorganic hybrid silica catalysts with platinum and propylsulfonic acid groups (Pt/SBA15-PrSO3H) were designed for combined one-step hydrogenation/esterification (OHE) using acetic acid and acetaldehyde as the model reagents.Figure optionsDownload full-size imageDownload high-quality image (104 K)Download as PowerPoint slide

Keywords
Bifunctional catalyst; Mesoporous organic–inorganic hybrid silica; Propylsulfonic acid; Platinum; One-step hydrogenation/esterification; Bio-oil; Catalytic upgrading
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 375, Issue 2, 1 March 2010, Pages 310–317
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us