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Issue 21, 2017
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In situ bubble template-assisted synthesis of phosphonate-functionalized Rh nanodendrites and their catalytic application

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Abstract

The controllable synthesis of branched noble metal nanostructures has attracted significant attention as it provides excellent catalytic activity and durability to these metal nanostructures. In the present study, a facile and effective complexation–reduction strategy was developed for synthesizing Rh nanodendrites with hippocampus tail-like branches (Rh-NDHTs) using N2H4·H2O as a reductant and multiphosphonate molecule with small molecular weight as a complexant and functional agent. During the synthesis, the coordination interaction between multiphosphonate and RhCl3 as well as the hydrazine decomposition reaction (H2NNH2 = N2 + 2H2) catalyzed by the freshly formed Rh nanocrystals play important roles in the generation of Rh-NDHTs. Moreover, phosphonate functionalization of Rh-NDHTs was simultaneously achieved during the course of the synthesis, originating from the strong adsorption of multiphosphonate on the Rh surface. When used as a heterogeneous catalyst for the o-phenylenediamine oxidation reaction, the phosphonate-functionalized Rh-NDHTs exhibited enhanced catalytic efficiency and durability as compared to the commercially available Rh nanocrystals, attributing to their extraordinary morphological and interfacial properties.

Graphical abstract: In situ bubble template-assisted synthesis of phosphonate-functionalized Rh nanodendrites and their catalytic application

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Publication details

The article was received on 30 Mar 2017, accepted on 02 May 2017 and first published on 04 May 2017


Article type: Paper
DOI: 10.1039/C7CE00606C
Citation: CrystEngComm, 2017,19, 2946-2952
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    In situ bubble template-assisted synthesis of phosphonate-functionalized Rh nanodendrites and their catalytic application

    J. Zhu, F. Li, L. Yao, C. Han, S. Li, J. Zeng, J. Jiang, J. Lee and Y. Chen, CrystEngComm, 2017, 19, 2946
    DOI: 10.1039/C7CE00606C

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