PBMPtNi catalyst modified by Pt-Ni alloy, preparation method and application
CN119608139BActive Publication Date: 2025-06-10NANJING UNIV OF INFORMATION SCI & TECH
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Patent Information
- Application Number
- CN202510147140.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2045-02-11
AI Technical Summary
Technical Problem
The prior art has problems with low efficiency and high cost in electrochemical ammonia oxidation reactions, making it difficult to achieve efficient ammonia oxidation reactions.
Method used
The PBMPtNi catalyst modified with Pt-Ni alloy is used to precipitate the Pt-Ni alloy by hydrogen reduction method to form a heterogeneous interface, which improves the utilization rate of Pt and reduces costs.
Benefits of technology
It significantly improves the ammonia electrooxidation reaction activity, reduces the production cost of the catalyst, and realizes efficient application in direct ammonia electrolytic cells.
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Abstract
The present invention discloses a PBMPtNi catalyst modified with a Pt-Ni alloy, a preparation method and an application, belonging to the field of electrocatalysis; the preparation method of the PBMPtNi catalyst modified with a Pt-Ni alloy includes: stirring and mixing praseodymium nitrate, barium nitrate, manganese nitrate tetrahydrate, platinum tetrachloride, nickel nitrate hexahydrate and water to completely dissolve metal salt ions to obtain a metal salt ion solution; adding ethylenediaminetetraacetic acid and citric acid to the metal salt ion solution and adjusting the pH to 7 to obtain a mixed solution; heating and stirring the mixed solution into a gel; drying the gel and then grinding it into powder, and then performing calcination and grinding to obtain a PBMPtNi sample, and preparing a PBMPtNi catalyst modified with a Pt-Ni alloy by a hydrogen reduction method for the PBMPtNi sample. This catalyst improves the utilization rate of Pt, reduces costs, and can greatly improve the activity of ammonia electrooxidation reaction.
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