Nickel iridium-oxide composite catalyst and preparation method thereof
A composite catalyst and oxide technology, which is applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc. It can solve the problems of poor purity of nickel-iridium alloy and influence on catalytic effect, etc. , to achieve the effect of low cost, uniform distribution of components, and controllable catalyst components
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[0023] Such as figure 1 As shown, a circular 304 stainless steel wire mesh with a mesh diameter of 5 microns is used, and its diameter is 1.5 cm. figure 2 In 1 is a stainless steel frame, 2 is an electrochemically deposited nickel-iridium oxide catalyst film layer. First configure 50mL electroplating solution of iridium trichloride 0.010mol / L, nickel sulfate 0.045mol / L, nickel sulfamate 0.05mol / L, citric acid 0.225mol / L, cerium oxide 15g / L, saccharin 0.008mol / L, The weighed medicine is introduced into a 50mL glass container. First add about 25mL of ionized water to stir and dissolve; then add dropwise sodium hydroxide solution to adjust the pH to around 4.0, then add deionized water to 50mL, measure the pH of the plating solution with a pH meter, and then add a small amount Sodium hydroxide fine-tune the pH to 5.0. The workpiece uses stainless steel wire mesh, and the surface is cleaned with detergent first, then pickled for 2 minutes, and then cleaned with acetone ultrasoni...
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