A low-cost platinum film deposited direct on glass substrate for electrochemical counter electrodes

JOURNAL OF POWER SOURCES

卷:232

Article

Pereira, R.¹  Marchesi, L. F.¹  Freitas, R. G.¹  Matos, R.¹  Pereira, E. C.¹ 

[1] Univ Fed Sao Carlos, Lab Mat Nanoestruturados Fabricados Eletroquimica, DQ UFSCar, BR-13565905 Sao Carlos, SP, Brazil

关键词: Platinum electrodes;    Sol-gel route;    Low cost deposition;    Glass substrates;   

DOI  :  10.1016/j.jpowsour.2013.01.040

来源: Elsevier

【 摘 要 】

The preparation and characterization of platinum electrodes on glass substrates obtained by the Pechini method for a potential application as a counter electrode is presented in this paper. This method is based on the dissolution of citric acid (CA) and hexachloride platinum acid (H2PtCl6) in ethylene glycol (EG), and then calcinated in an appropriated temperature to produce the desired metallic film. Characterization was carried out by X-ray diffraction, scanning electron and atomic force microscopy and cyclic voltammetry. X-ray patterns of platinum on glass substrate showed the same features of the platinum bulk metal as well as its voltammetric profile. In order to determine the stability of the electrode, the electrode was subjected to 5000 voltammetric cycles and polarized at constant current of 100 mA cm(-2) for at least 200 h, showing no considerable differences compared with the as synthesized electrode. Moreover, the main advantage of the electrode is the low cost (US$ 0.03 cm(-2)) of the prepared samples. (C) 2013 Elsevier B.V. All rights reserved.

【 授权许可】

Free