TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preparation (Claimed): Preparation of the anode catalyst comprises adding the multi-walled carbon nanotube in deionized water for ultrasonic dispersion, adding hydrogen peroxide to the multi-walled carbon nanotube dispersion liquid and then boiling, cooling the liquid, adding concentrated hydrochloric acid to the liquid, centrifuging the liquid to collect supernatant, washing the supernatant with deionized water until the pH value is 5-8, precipitating the mixture, drying the obtained precipitate under vacuum to obtain purified multi-wall carbon nanotube, adding molybdophosphoric acid, purified multi-walled carbon nanotubes and deionized water into a conical flask, performing ultrasonic dispersion on the mixture, adding iridium chloride, ethylene glycol and platinum chloride in the conical flask, introducing nitrogen to the solution to remove oxygen, and stirring and refluxing the mixture at high temperature under the protection of the nitrogen. Preferred Method: The drying step is carried out at a temperature of 80-120 degrees C. The ultrasonic dispersion step is carried out for 0.5-2 hours. The step of introducing the nitrogen gas to the solution is carried out for 10-30 minutes. The method further comprises separating the obtained precipitate by centrifuging, washing the sediment and then vacuum drying to obtain catalyst. The step of adding the multi-walled carbon nanotube in deionized water for ultrasonic dispersion is carried out for 10-60 minutes. The boiling time is 3-12 hours. The centrifuging step is carried out for 4-12 hours. The ultrasonic treatment is carried out at an operating frequency of 25-45 Hz for 12-48 hours using an ultrasonic treatment device with a cleaner. The refluxing step is carried out using a reflux device with a condensing pipe. The step of stirring and refluxing is carried out at a temperature of 100-180 degrees C for 2-20 hours. The vacuum drying step is carried out at a temperature of 80-100 degrees C. Preferred Components: The raw materials for preparing the catalyst include iridium chloride, platinum chloride, multi-walled carbon nanotube, molybdophosphoric acid, ethylene glycol and water in a weight ratio of 1-3:5-11:4-6:4-6:1000-20000:1000-20000. The iridium chloride includes hexachloroiridate acid, ammonium hexachloroiridate, iridium trichloride, iridium tetrachloride and/or iridium dichloride. The molybdophosphoric acid includes chlorinated molybdic acid, potassium molybdate, ammonium molybdate, sodium molybdate, molybdenum dichloride, molybdenum trichloride and/or molybdenum tetrachloride.