TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The method comprises: (i) slowly pouring chloroplatinic acid (3 g, preferably 1 g) into a volumetric flask with isopropanol (100 g), ultrasonic-dispersing for 15 minutes, magnetic-stirring for 15 minutes until the solid particle disappears, sealing and depositing the solution after dispersing evenly and obtaining solution A; (ii) slowly pouring ethyl cellulose into a volumetric flask with terpilenol (100 g) in water bath at 80 degrees C, stirring completely until the translucent white particle precipitates and obtaining a carrier B; (iii) mixing the solution A (10 g) and the carrier B (30 g), stirring the mixture while heating for 15 minutes in water bath and obtaining a screen printing platina paste; (iv) ultrasonic cleaning a fluorine-doped tin oxide conductive glass with deionized water containing detergent and acetone or ethanol respectively, eluting with deionized water and air drying under an infrared lamp; (v) providing a screen printing plate of 200-mesh, printing the platina paste obtained in the step (iii) on the conductive glass obtained in the step (iv), drying the platina paste for 15 minutes at 150 degrees C, transferring in a muffle furnace and maintaining the temperature of 350 degrees C, preferably 500 degrees C for 60 minutes, preferably 30 minutes, removing the platina paste, naturally cooling and obtaining an initial platina electrode; and (vi) heating titanium tetrachloride aqueous solution (0.04 mole/l, preferably 0.08 mole/l) in water bath at 40-80 degrees C, preferably 60 degrees C, immersing the initial platina electrode in titanium tetrachloride aqueous solution for 0.5 hours, preferably 1 hour, removing the platina electrode, washing the platina electrode with deionized water repeatedly, drying the initial platina electrode at 120 degrees C, transferring the initial platina electrode in the muffle furnace, heating at 5 degrees C per minute for 60 minutes, preferably 30 minutes and removing the platina electrode when the temperature is 350 degrees C, preferably 500 degrees C and cooling.