Double Hydrophilic Block Copolymer Templated Au Nanoparticles with Enhanced Catalytic Activity toward Nitroarene Reduction
作者： Eunyong Seo , Jesi Kim , Yunjeong Hong , Yung Sam Kim , Daeyeon Lee
DOI: 10.1021/JP4027139
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摘要: We present a facile method for synthesizing water-dispersible gold nanoparticles (Au NPs) using double hydrophilic block copolymer (DHBC), poly(ethylene oxide)-block-poly(acrylic acid) (PEO-b-PAA), as template and demonstrate their application in the reduction of nitroarenes. Selective coordinative interactions between precursor PAA DHBC lead to formation micelles, which are subsequently transformed into Au NPs with an average diameter 10 nm reducing agent. The DHBC-templated (Au@DHBC remain stable water several months without any noticeable aggregation. Furthermore, Au@DHBC found be highly effective catalyzing series Remarkably, turnover frequency case 4-nitrophenol Au@DHBP reaches 800 h–1, outperforming previously reported NP-based catalytic systems. believe enhanced activity is due shell around NPs, templates formation...
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Mathias Brust, Merryl Walker, Donald Bethell, David J. Schiffrin, Robin Whyman, Synthesis of thiol-derivatised gold nanoparticles in a two-phase liquid-liquid system Journal of The Chemical Society, Chemical Communications. pp. 801- 802 ,(1994) , 10.1039/C39940000801
Isaac Ojea-Jiménez, Francisco M. Romero, Neus G. Bastús, Victor Puntes, Small Gold Nanoparticles Synthesized with Sodium Citrate and Heavy Water: Insights into the Reaction Mechanism Journal of Physical Chemistry C. ,vol. 114, pp. 1800- 1804 ,(2010) , 10.1021/JP9091305
Manisha J. Vaidya, Shrikant M. Kulkarni, Raghunath V. Chaudhari, Synthesis of p-Aminophenol by Catalytic Hydrogenation of p-Nitrophenol Organic Process Research & Development. ,vol. 7, pp. 202- 208 ,(2003) , 10.1021/OP025589W
Nikhil R. Jana, Latha Gearheart, Catherine J. Murphy, Seeding Growth for Size Control of 5−40 nm Diameter Gold Nanoparticles Langmuir. ,vol. 17, pp. 6782- 6786 ,(2001) , 10.1021/LA0104323
Avelino Corma, Hermenegildo Garcia, Supported gold nanoparticles as catalysts for organic reactions Chemical Society Reviews. ,vol. 37, pp. 2096- 2126 ,(2008) , 10.1039/B707314N
M. A. Mahmoud, F. Saira, M. A. El-Sayed, Experimental evidence for the nanocage effect in catalysis with hollow nanoparticles. Nano Letters. ,vol. 10, pp. 3764- 3769 ,(2010) , 10.1021/NL102497U
Limin Qi, Helmut Cölfen, Markus Antonietti, Synthesis and characterization of CdS nanoparticles stabilized by double hydrophilic block copolymers. Nano Letters. ,vol. 1, pp. 61- 65 ,(2001) , 10.1021/NL0055052
Nikhil R. Jana, Latha Gearheart, Catherine J. Murphy, Evidence for Seed-Mediated Nucleation in the Chemical Reduction of Gold Salts to Gold Nanoparticles Chemistry of Materials. ,vol. 13, pp. 2313- 2322 ,(2001) , 10.1021/CM000662N
Stefan Mössmer, Joachim P. Spatz, Martin Möller, Thomas Aberle, Jürgen Schmidt, Walther Burchard, Solution behavior of poly(styrene)-block-poly(2-vinylpyridine micelles containing gold nanoparticles Macromolecules. ,vol. 33, pp. 4791- 4798 ,(2000) , 10.1021/MA992006I
Andreas Taubert, Dennis Palms, Özlem Weiss, Maria-Teresa Piccini, David N. Batchelder, Polymer-Assisted Control of Particle Morphology and Particle Size of Zinc Oxide Precipitated from Aqueous Solution Chemistry of Materials. ,vol. 14, pp. 2594- 2601 ,(2002) , 10.1021/CM011670M