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Facile construction of fascinating trimetallic PdAuAg nanocages with exceptional ethylene glycol and glycerol oxidation activity

Abstract

Highly open metallic nanocages represent a novel class of new nanostructures for advanced catalytic applications in direct liquid fuel cells due to their specific capability for not only providing easy access for reactants to both internal and external active sites but also possessing desirable electronic structures for the adsorption of molecules, rendering superior catalytic performance. Howbeit, up till now, the rational design of trimetallic nanocages with tunable compositions remains a challenge. We herein demonstrate a facile combined seed mediated and galvanic replacement method that allows the preparation of unique trimetallic Pd-Au-Ag nanocages catalysts with tunable compositions. A series of controlled experiments have revealed that the reaction time played the crucial role in affecting the morphology of the final product. Importantly, the newly-generated Pd-Au-Ag nanocages are high-performance electrocatalysts for both the reaction of ethylene glycol and glycerol oxidations with the mass activities of 7578.2 and 5676.1 mA mg-1, respectively, which are far superior than those of commercial Pd/C. We firmly believe that the strategy and enhanced electrocatalysts we developed in this work can be well applied to boost the commercial development of fuel cells technologies.

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Publication details

The article was received on 09 Sep 2017, accepted on 13 Oct 2017 and first published on 13 Oct 2017


Article type: Paper
DOI: 10.1039/C7NR06737B
Citation: Nanoscale, 2017, Accepted Manuscript
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    Facile construction of fascinating trimetallic PdAuAg nanocages with exceptional ethylene glycol and glycerol oxidation activity

    H. Xu, B. Yan, J. Wang, S. Li, C. Wang, Y. Shiraishi, P. Yang and Y. Du, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR06737B

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