Jiu-Ju Feng, Ao-Qi Li, Zhen Lei, Ai-Jun Wang
Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453007, China.
ACS applied materials & interfaces 2012 MayThe shape control of Au nanocrystals is crucial to their catalytic applications and optical properties. Well-defined Au nanodendrites (NDs) have been prepared on a glassy carbon electrode using low-potential synthesis, assisted by ethylenediamine (EDA). The effects of applied potential, deposition time, and HAuCl(4) (or EDA) concentrations on the morphology of the Au deposits are discussed in our work. The growth mechanism can be explained by a two-staged growth of dendrites: initial branching and subsequent dendritic growth. The Au NDs exhibits superior catalytic performance toward ethanol oxidation, in comparison with the polycrystalline Au nanoparticles. The simple and facile synthetic technique can be applied to the construction of other metals with complex hierarchical structures on a large-scale.
Jiu-Ju Feng, Ao-Qi Li, Zhen Lei, Ai-Jun Wang. Low-potential synthesis of "clean" Au nanodendrites and their high performance toward ethanol oxidation. ACS applied materials & interfaces. 2012 May;4(5):2570-6
PMID: 22524307
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