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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 | Source: | Scientific reports, 3 2017, v. 7, no. , 39839, p. 1-10 | 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. | Publisher: | Nature Publishing Group | Journal: | Scientific reports | EISSN: | 2045-2322 | DOI: | 10.1038/srep39839 | Rights: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ © The Author(s) 2017 The following publication Hau, N. Y. et al. Aminosilane-Assisted Electrodeposition of Gold Nanodendrites and Their Catalytic Properties. Sci. Rep. 7, 39839 (2017) is available at https://dx.doi.org/10.1038/srep39839 |
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