Catalysis using gold nanoparticles decorated on nanocrystalline cellulose

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DOIResolve DOI: http://doi.org/10.1039/C2NR11558A
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TypeArticle
Journal titleNanoscale
Volume4
Issue3
Pages9971002; # of pages: 6
Subject4-aminophenols; 4-Nitrophenol; Ammonium chloride; Au nanoparticle; Average diameter; Crystalline cellulose; Gold Nanoparticles; Hybrid inorganic-organic; Nanocrystalline cellulose; Product isolation
AbstractA novel nanocomposite was prepared by deposition of carbonate-stabilized Au nanoparticles (AuNPs) onto the surface of poly(diallyldimethyl ammonium chloride) (PDDA)-coated carboxylated nanocrystalline cellulose (NCC). The hybrid material possessed AuNPs (1.45% by weight) with an average diameter of 2.95 ± 0.06 nm. The catalytic activity of AuNP/PDDA/NCC for reducing 4-nitrophenol to 4-aminophenol was compared to other Au-supported composites. An activation energy of 69.2 kJ mol⁻¹ was obtained for the reaction. Indeed, the reaction rate constant k of (5.1 ± 0.2) x 10⁻³ s⁻¹ was comparable to the benchmark literature value obtained using AuNPs (<5 nm in diameter) decorated on a network of crystalline cellulose fibers. Our strategy promotes the use of natural resources to prepare reusable hybrid inorganic–organic materials for important reactions with facilitated product isolation/purification.
Publication date
PublisherRSC Publishing
LanguageEnglish
AffiliationNational Research Council Canada; NRC Biotechnology Research Institute
Peer reviewedYes
NRC number53402
NPARC number21268453
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Record identifier7686bb94-36a1-49c1-9730-0bccf0d597e2
Record created2013-07-24
Record modified2016-05-09
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