Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/65833
Title: Aminosilane-assisted electrodeposition of gold nanodendrites and their catalytic properties
Authors: Hau, NY
Yang, PX
Liu, C
Wang, J
Lee, PH 
Feng, SP
Issue Date: 2017
Publisher: Nature Publishing Group
Source: Scientific reports, 2017, v. 7, 39839 How to cite?
Journal: Scientific reports 
Abstract: A promising alternative route for the synthesis of three-dimensional Au dendrites was developed by direct electrodeposition from a solution of HAuCl4 containing 3-aminopropyltriethoxysilane (APTS). Ultraviolet-visible spectroscopy, fourier transform infrared spectroscopy and isothermal titration calorimetry were used to study the interaction of APTS in electrolyte. The effect of APTS on the formation of the hierarchical structure of Au dendrites was investigated by cyclic voltammetry, rotating disk electrode, electrochemical impedance spectroscopy and quartz crystal microbalance. The growth directions of the trunks and branches of the Au dendrites can be controlled by sweep-potential electrodeposition to obtain more regular structures. The efficacy of as-synthesised Au dendrites was demonstrated in the enhanced electro-catalytic activity to methanol electro-oxidation and the high sensitivity of glucose detection, which have potential applications in direct-methanol fuel cells and non-enzymatic electrochemical glucose biosensors, respectively.
URI: http://hdl.handle.net/10397/65833
EISSN: 2045-2322
DOI: 10.1038/srep39839
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