Polyacrylate-assisted synthesis of stable copper nanoparticles and copper(I) oxide nanocubes with high catalytic efficiency

Robert Prucek; Libor Kvítek; Aleš Panáček; Lenka Vančurová; Jana Soukupová; Dalibor Jančík; Radek Zbořil

doi:10.1039/B913561H

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Journal of Materials Chemistry

Issue 44, 2009

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Polyacrylate-assisted synthesis of stable copper nanoparticles and copper(I) oxide nanocubes with high catalytic efficiency

Robert Prucek , Libor Kvítek , Aleš Panáček , Lenka Vančurová , Jana Soukupová , Dalibor Jančík and Radek Zbořil

J. Mater. Chem., 2009, 19, 8463-8469

DOI: 10.1039/B913561H
Received 07 Jul 2009, Accepted 11 Sep 2009
First published on the web 06 Oct 2009

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The synthesis of Cu nanoparticles (NPs) via the reduction of Cu ions with sodium borohydride in the presence of sodium polyacrylate is presented. The final Cu nanocrystals having a 14 nm diameter were generated via the aggregation and coalescence of the primarily formed ultrasmall particles (approx. 3 nm). Addition of sodium sulfite to the dispersions provided the protection of the Cu NPs against oxidation. On the other hand, the controlled aeration of the Cu NPs resulted in their transformation to Cu₂O nanocubes with an average size of 18 nm. Both Cu NPs and Cu₂O nanocubes can effectively catalyze reduction of 4-nitrophenol by sodium borohydride in aqueous solution.

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Articles By

Robert Prucek
Libor Kvítek
Aleš Panáček
Lenka Vančurová
Jana Soukupová
Dalibor Jančík
Radek Zbořil

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Journal of Materials Chemistry

Polyacrylate-assisted synthesis of stable copper nanoparticles and copper(I) oxide nanocubes with high catalytic efficiency

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