Cobalt dinitrate → Cobalt dinitrate

Participants

Reaction Steps

62.5 g of carboxymethyl cellulose was added to 2.5 liters of distilled water and the mixture was kneaded and deaerated to obtain a binder solution. To this binder solution were added 2.5 kg of a nickel powder of about 3 μm in average particle size and 360 g of a chromium oxide powder of about 3 μm in average particle size, followed by further kneading and deaeration to obtain a slurry. A wire gauze of 40 meshes was passed through this slurry solution to deposit the slurry thereon and then this wire gauze was passed through a slit to adjust the thickness of the resulting electrode and dried. Thereafter, the electrode was sintered at 850° C. in a hydrogen atmosphere to obtain a nickel-chromium oxide porous sintered body. Then, an aqueous cobalt nitrate solution was prepared which was adjusted so that the amount of cobalt based on nickel was 5 atom %. The above nickel-chromium oxide porous sintered body was dipped in this aqueous cobalt nitrate solution for 15 minutes and then, was taken out, followed by removing an excess solution and drying. This was sintered at 700° C. in a hydrogen atmosphere to obtain a nickel-chromium oxide-cobalt ternary anode.

Provenance & Evidence