Preparation and application of selenide stainless steel foam electrolyzed water catalytic material
A catalytic material, stainless steel technology, applied in the field of electrocatalytic material preparation, can solve the problems of harsh conditions, complex preparation process, low mechanical strength of nickel foam, etc., and achieve the effects of easy industrialization, good catalytic performance and low price
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Embodiment 1
[0018] A kind of preparation method of water splitting electrocatalyst is as follows: 1cm 2 The stainless steel foam sheet and 1 gram of selenium powder were respectively placed in a tube furnace, and calcined at 500° C. for 2 hours under the protection of argon to obtain a selenized stainless steel foam electrolysis water catalyst;
[0019] The obtained selenized stainless steel foam was used as the working electrode, the platinum electrode was used as the counter electrode, and the silver / silver chloride electrode was used as the reference electrode. The three-electrode system was used for electrochemical analysis in 1M KOH solution. The results show that the electrocatalytic material has good hydrogen and oxygen production performance, and the hydrogen and oxygen production can reach 100mA / cm 2 The overpotentials required for the current density are 404mv and 301mv, respectively;
Embodiment 2
[0021] Method is with embodiment 1: with 1cm 2 The stainless steel foam sheet and 1 gram of sodium selenate were respectively placed in a tube furnace, and were calcined at 500° C. for 2 hours under the protection of argon to obtain a selenized stainless steel foam electrolysis water catalyst;
[0022] The results showed that hydrogen and oxygen production reached 100mA / cm 2 The overpotentials required for the current density are 420mv and 315mv, respectively;
Embodiment 3
[0024] Method is with embodiment 1: with 1cm 2 The stainless steel foam sheet and 1 gram of sodium selenite were respectively placed in a tube furnace, and were calcined at 500° C. for 2 hours under the protection of argon to obtain a selenized stainless steel foam electrolysis water catalyst;
[0025] The results showed that hydrogen and oxygen production reached 100mA / cm 2 The overpotentials required for the current density are 434mv and 326mv, respectively;
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