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Issue 4, 2011
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Palladium thorn clusters as catalysts for electrooxidation of formic acid

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Abstract

Pure palladium thorn clusters were synthesized using the electrodeposition method. The clusters were composed of several thorns growing on one basis. Each thorn was composed of hexahedral units with decreasing sizes. The whole thorn was a single crystal along the <220> direction. The cluster was synthesized by square wave electrodeposition. By changing the deposition factors, a mixture of thorns and particles was synthesized, where each thorn grew on one basis and the thorn was composed of dodecahedral bases. Compared with the mixture, the cluster had higher activity toward the electrooxidation of formic acid, and also much higher activity than Pd powder, which was evidenced by the improved current density and onset potential of formic acid oxidation. The fact that pure thorn clusters had a higher catalytic activity than the mixture of thorns and particles proved that the higher activity was ascribed to the single crystal property of the thorns.

Graphical abstract: Palladium thorn clusters as catalysts for electrooxidation of formic acid

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Publication details

The article was received on 23 Nov 2010, accepted on 15 Feb 2011 and first published on 08 Mar 2011


Article type: Paper
DOI: 10.1039/C0EE00702A
Citation: Energy Environ. Sci., 2011,4, 1522-1526
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    Palladium thorn clusters as catalysts for electrooxidation of formic acid

    H. Meng, C. Wang, P. K. Shen and G. Wu, Energy Environ. Sci., 2011, 4, 1522
    DOI: 10.1039/C0EE00702A

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