Vol.:(0123456789) 1 3 Monatshefte für Chemie - Chemical Monthly https://doi.org/10.1007/s00706-020-02555-z ORIGINAL PAPER A state‑of‑the‑art approach to synthesis of dendrite‑like gold nanostructures via electrodeposition Abdurrahman Taha Gulderen 1  · Yasemin Oztekin 2  · Jiri Barek 3 Received: 25 November 2019 / Accepted: 26 January 2020 © Springer-Verlag GmbH Austria, part of Springer Nature 2020 Abstract Gold nanostructures such as nanoparticles, nanowires, or nanotubes are highly preferred structures in electrochemical studies and can be produced by electrodeposition. This study points out that the shapes and electrochemical behaviour of electrodeposited gold nanostructures can be varied by adjusting multi-walled carbon nanotube (MWCNT) ratio in electro- deposition solution. For that, gold nanoflms on the glassy carbon electrode surface were formed from HAuCl 4 solution in the presence and absence of MWCNT. In this study, the gold concentration was fxed at 0.4 ppm (10.0 mM) and only MWCNT concentration was varied. The prepared electrode surfaces were characterized and compared with each other from the point of view of electrochemical, microscopic, and spectroscopic properties. Ultimately, it was shown that each prepared electrode had diferent properties. Graphic abstract Keywords Surface · Electrochemistry · Metals · Nanochemistry · Voltammetry Introduction Nanotechnology is relatively new feld of research and well- developed area of science which enables to control materials in nanoscale and produce nano-scaled structured materials. Outstanding properties of nanomaterials are the main reason that makes nanostructures stars of the science world. It is well known that tremendous optic, electronic, magnetic, or mechanic properties can be obtained due to such factors as size, morphology, shapes of the materials, etc. [1]. Nano- structures of metals are widely preferred in numerous appli- cation areas [2–4]. In particular, gold is frequently used in nanoscale like the well-known example of Lycurgus cup [4]. Current technologies look for more controllable and feasible manufacturing of nanostructures. The existing up- limits of science and technology are expressed by the term “state of the art” [5–7]. Undoubtedly, the current state of nanotechnology will be further developed and improved in connection with many new methods to synthesize gold nano- structures by using direct reducing agents [8, 9], enzymes [10, 11], and “green” agents [12–14] or various techniques * Jiri Barek barek@natur.cuni.cz 1 Graduate School of Natural Sciences, Advanced Materials and Nanotechnology, Selcuk University, Konya, Turkey 2 Department of Chemistry, Faculty of Science, Selcuk University, Konya, Turkey 3 UNESCO Laboratory of Environmental Electrochemistry, Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 12843 Prague 2, Czech Republic