The template-assisted electrodeposition of platinum nanowires for catalytic applications

  • Soha Mohajeri Department of Materials and Engineering, Sharif University of Technology, Tehran
  • Abolghassem Dolati Department of Materials and Engineering, Sharif University of Technology, Tehran
  • Sahar Hashemi Daryan Department of Materials and Engineering, Sharif University of Technology, Tehran
Keywords: Platinum nanowires, Polycarbonate templates, Electrodeposition, Hydrogen adsorption/desorption, Methanol oxidation reaction


Template-assisted electrodeposition technique was applied to synthesize platinum nanowires (Pt NWs) on polycarbonate templates (PCT) with pore diameters of 15, 50, and 100 nm for catalytic applications. Influences of sulfuric acid added to the electrolyte, different potential scanning rates and different pore diameters of templates on the electrodeposition process of Pt NWs were investigated by electrochemical techniques, including voltammetry and chronoamperometry methods. It was confirmed that at lower scan rates and in acidic solutions, electrodeposition of platinum on templates with larger pores is controlled by diffusion. The potential range for deposition of Pt NWs was determined and the potentiostatic technique was utilized by applying various potentials of different durations to fabricate the NWs. The morphological characteristics of Pt NWs were examined using the scanning electron microscopy (SEM). It was shown that the growth of Pt NWs on PCT 50 nm followed a pine-tree pattern, while the Pt NWs grew spherically on PCT 100 nm. The uniform and compact shape of Pt NWs was verified by the transmission electron microscopy (TEM). The catalytic activities of the prepared Pt NWs with the same exchanged charge density for hydrogen adsorption/desorption and methanol oxidation reactions were determined by the cyclic voltammetry (CV) testing, and the superior electrocatalytic performance was detected for Pt NWs prepared on PCT 50 nm. This enhanced catalytic activity was attributed to the higher surface-to-volume ratio, larger electrochemical active surface area and higher density of exposed active sites accessible on the pine-tree morphology of these Pt NWs compared to the spherical structure of Pt NWs fabricated on PCT 100 nm. This makes Pt NWs prepared on PCT 50 nm to be a promising catalyst for direct methanol fuel cells (DMFCs).


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K. I. Ozoemena, Royal Society of Chemistry 6 (2016) 89523-89550.

E. P. Lee, Y. Xia, Nano Research 1 (2008) 129-137.

G. R. O. Almeida, E. M. Sussuchi, C. T. D. Meneses, G. R. Salazar-Banda, K. I. B. Eguiluz, International Journal of Electrochemical Science 12 (2017) 7502-7517.

W. Liu, J. Huang, Journal of Power Sources 189 (2009) 1012-1015.

K. Tao, J. Wang, Y. Li, D. Xia, H. Shan, H. Xu, J. R. Lu, Scientific Reports 3 (2013) 1-6.

Y. Lu, S. Du, R. Steinberger-Wilckens, Applied Catalysis B: Environmental 164 (2015) 389-395.

S. Sun, G. Zhang, D. Geng, Y. Chen, R. Li, M. Cai, X. Sun, Angewandte Chemie International Edition 50 (2011) 422-426.

L. Rotkina, Applied Physics Letters 83 (2003) 4426-4428.

B. Y. Xia, H. B. Wu, Y. Yan, X. W. Lou, X. Wang, Journal of the American Chemical Society 135 (2013) 9480-9485.

L. A. Dobrzanski, M. Szindler, M. Pawlyta, M. M. Szindler, P. Boryło, B. Tomiczek, Open Physics 14 (2016) 159-165.

A. M. Contreras, J. Grunes, X. M. Yan, A. Liddle, G. A. Somorjai, Catalysis Letters 100 (2005) 115-124.

P. Brault, A. Caillard, S. Baranton, M. Mougenot, S. Cuynet, C. Coutanceau, ChemSusChem 6 (2013) 1168-1171.

S. S. Mahshid, A. Dolati, S. Hashemi Daryan, M. Ghorbani, ECS Transactions 28 (2010) 25-35.

G. Nabiyouni, K. Hedayati, Journal of Experimental Nanoscience 9 (2014) 186-196.

X. Z. Gong, J. N. Tang, J. Q. Li, Y. K. Liang, Transactions of Nonferrous Metals Society of China 18 (2008) 642-647.

W. B. Yu, G. Ouyang, Scientific Reports 7 (2017) 1-7.

J. M. Nugent, K. S. V. Santhanam, A. Rubio, P. M. Ajayan, Nano Letters 1 (2001) 87-91.

E. Broaddus, J. Brubaker, S. A. Gold, International Journal of Electrochemistry 2013 (2013) 1-7.

S. Mohajeri, A. Dolati, M. Ghorbani, Journal of Ultrafine Grained and Nanostructured Materials 49 (2016) 51-63.

J. Chen, B. Lim, E. P. Lee, Y. Xia, Nano Today 4 (2009) 81-95.

Y. J. Song, S. B. Han, K. W. Park, Materials Letters 64 (2010) 1981-1984.

E. S. V. Neto, M. A. Gomes, G. R. Salazar-Banda, K. I. B. Eguiluz, International Journal of Hydrogen Energy 43 (2018) 178-188.

S. Sun, G. Zhang, D. Geng, Y. Chen, M. N. Banis, R. Li, M. Cai, X. Sun, Chemistry-A European Journal 16 (2009) 829-835.

H. A. Gasteiger, S. S. Kocha, B. Sompalli, F. T. Wagner, Applied Catalysis B: Environmental 56 (2005) 9-35.

S. M. Alia, S. Pylypenko, K. C. Neyerlin, S. S. Kocha, B. S. Pivovar, Journal of The Electrochemical Society 162 (2015) 1299-1304.

C. Xu, L. Wang, R. Wang, K. Wang, Y. Zhang, F. Tian, Y. Ding, Advanced Materials 21 (2009) 2165-2169.

Electrochemical Science