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Au NPs on anionic-exchange resin as catalyst for polyols oxidation in batch and fixed bed reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
47400 46470 2010 7 PDF Available
Title
Au NPs on anionic-exchange resin as catalyst for polyols oxidation in batch and fixed bed reactor
Abstract

Commercial weak basic anion resin (Dowex M-43) was used as support for gold nanoparticles (Au NPs). Au NPs stabilized by tetrakishydroxypropylphosphonium chloride (THPC) were immobilized on the support (AuTHPC/Dowex M-43). In alternative, Au NPs were generated by adsorbing NaAuCl4 on the resin and then reduced by NaBH4 (Auads/Dowex M-43). These catalysts were tested in the liquid phase oxidation of glycerol in a glass batch reactor: AuTHPC/Dowex M-43 showed better activity than Auads/Dowex M-43. The higher activity can be attributed to the smaller Au nanoparticles in AuTHPC/Dowex M-43 than Auads/Dowex M-43. Moreover AuTHPC/Dowex M-43 was tested in the glycerol oxidation in a fixed bed reactor showing good stability during the reaction time. All the catalysts have been characterised by TEM, FT-IR and XPS.

Keywords
Gold; Resin; Liquid phase oxidation; Batch reactor; Fixed bed reactor
First Page Preview
Au NPs on anionic-exchange resin as catalyst for polyols oxidation in batch and fixed bed reactor
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 96, Issues 3–4, 7 June 2010, Pages 541–547
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis