Method for preparing highly active hydrogen evolution electrode by electroless plating on the surface of flocked steel plate-hole making
A technology of surface chemistry and hydrogen evolution electrode, applied in liquid chemical plating, electrode, electrode shape/type, etc., can solve the problem of poor performance of non-noble metal electrolysis hydrogen catalyst
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specific Embodiment approach 1
[0015] Embodiment 1: The method for preparing a highly active hydrogen evolution electrode by electroless plating on the surface of the flocking steel plate of this embodiment and making holes is carried out in the following steps:
[0016] (1) Preparation of activation solution: a. Dissolve anionic polyacrylamide with a concentration of 0.3~1.6 g / L and palladium acetate with a concentration of 0.1~0.5 g / L in deionized water in sequence, and stir for 5~10 hours Activation solution is prepared, in which the molecular weight of anionic polyacrylamide is 3 million to 12 million;
[0017] (2) Preparation of plating solution: b. Compound complexing agent with concentration of 1.6~18.0 g / L, silver nitrate with concentration of 0.3~1.0 g / L, copper nitrate with concentration of 1.0~5.0 g / L, concentration Dissolve nickel salt with a concentration of 0.8~6.0 g / L, cobalt salt with a concentration of 0.6~3.0 g / L and sodium tungstate with a concentration of 0.05~0.6 g / L in deionized water ...
specific Embodiment approach 2
[0022] Specific embodiment two: what this embodiment is different from specific embodiment one is that the composite complexing agent described in the step (2) is ammoniacal liquor, ethylenediamine, edetate disodium, sodium citrate, adipic acid A combination of any four of sodium, potassium sodium tartrate, scallops or sodium gluconate. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that the nickel salt described in step (2) is a kind of in nickel acetate or nickel nitrate. Others are the same as in the first or second embodiment.
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