1results about How to "Improve hydrogen evolution catalytic activity" patented technology

The application relates to the field of electrocatalysis, and particularly relates to a high-catalytic-activity Ni-Se-HREE hydrogen evolution electrode and a preparation method thereof.The atomic content percentage of the surface of the nickel-based hydrogen evolution electrode coating layer is as follows: Se: 6-10%; Gd: 0.1-1.0%, and the rest is Ni; or the atomic content percentage of the surface of the nickel-based hydrogen evolution electrode coating layer is as follows: Se: 5-20%; Lu: 1-5%, and the rest is Ni.After optimization, the hydrogen evolution overpotential of the prepared Ni-Se-HREE hydrogen evolution electrode material is less than or equal to 43 mV; after long-time electrolysis of the electrode for 1200 h, the stability is good, the requirements of low hydrogen evolution overpotential, high catalytic activity and high stability are met, and the electrode can be widely applied to the water electrolysis hydrogen production industry.