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Catalysts 2011, 1(1), 69-82; doi:10.3390/catal1010069
Article

In Situ Synthesis of Bimetallic Hybrid Nanocatalysts on a Paper-Structured Matrix for Catalytic Applications

1,* , 2
 and 2,3
Received: 25 September 2011; in revised form: 14 November 2011 / Accepted: 18 November 2011 / Published: 25 November 2011
(This article belongs to the Special Issue Gold Catalysts)
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Abstract: Bimetallic nanoparticles have attracted significant attention as their electrochemical and catalytic properties being superior to those of the individual component nanoparticles. In this study, gold-silver hybrid nanoparticles (AuAgNPs) with an Aucore-Agshell nanostructure were successfully synthesized on zinc oxide (ZnO) whiskers. The as-prepared nanocatalyst, denoted AuAgNPs@ZnO whisker, exhibits an excellent catalytic efficiency in the aqueous reduction of 4-nitrophenol to 4-aminophenol; the turnover frequency was up to 40 times higher than that of each component nanoparticle. Their unique features were attributed to the electronic ligand effect at the bimetallic interface. In addition, the AuAgNPs were synthesized on a ZnO whisker-containing paper with a fiber-network microstructure, which was prepared via a papermaking technique. The paper-structured AuAgNPs composite possessed both a paper-like practical utility and a good catalytic performance. Furthermore, the on-paper synthesis process for these bimetallic nanocatalysts is facile. These easy-to-handle nanocatalyst hybrid composites are expected to find a wide range of applications in various chemical and catalytic processes.
Keywords: gold; silver; bimetallic nanoparticles; zinc oxide whisker; paper-structured catalyst gold; silver; bimetallic nanoparticles; zinc oxide whisker; paper-structured catalyst
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Koga, H.; Umemura, Y.; Kitaoka, T. In Situ Synthesis of Bimetallic Hybrid Nanocatalysts on a Paper-Structured Matrix for Catalytic Applications. Catalysts 2011, 1, 69-82.

AMA Style

Koga H, Umemura Y, Kitaoka T. In Situ Synthesis of Bimetallic Hybrid Nanocatalysts on a Paper-Structured Matrix for Catalytic Applications. Catalysts. 2011; 1(1):69-82.

Chicago/Turabian Style

Koga, Hirotaka; Umemura, Yuuka; Kitaoka, Takuya. 2011. "In Situ Synthesis of Bimetallic Hybrid Nanocatalysts on a Paper-Structured Matrix for Catalytic Applications." Catalysts 1, no. 1: 69-82.


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