Preparation method of tungsten oxide loaded platinum nanocluster catalyst containing oxygen vacancy

The preparation of tungsten oxide support and loading platinum nanoclusters by hydrothermal method solves the resource scarcity and stability of precious metal catalysts, and realizes the efficient preparation of electrolytic hydrogen analysis catalysts, which is suitable for the electrolytic hydrogen production process.

CN120556073APending Publication Date: 2025-08-29BEIJING UNIV OF CHEM TECH
0 Cites 0 Cited by

Patent Information

Application Number
CN202510679661.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2025-08-29

AI Technical Summary

Technical Problem

The existing precious metal catalysts are scarce, cost-effective and unstable in the process of electrolyzing hydrogen production, and are difficult to apply on a large scale. The controllable preparation of nanocluster catalysts is still a challenge.

Method used

The tungsten oxide support containing oxygen defects was prepared by hydrothermal method, and the platinum nanoclusters were loaded by impregnation method to form a Pt nanocluster catalyst supported by tungsten oxide, and the size of the nanoclusters was adjusted by controlling the concentration of the metal precursor solution of the platinum.

Benefits of technology

The preparation of an efficient and stable electrolytic hydrogen evolution catalyst is achieved. The catalyst exhibits excellent electrocatalytic properties in electrolytic water, which are suitable for large-scale production and application.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a preparation method of a tungsten oxide-loaded platinum nanocluster catalyst containing oxygen vacancy, which comprises the following steps: dispersing tungsten chloride in absolute ethyl alcohol, performing ultrasonic stirring to fully dissolve the tungsten chloride, transferring the tungsten chloride to a polytetrafluoroethylene hydrothermal kettle, pouring out supernate after the reaction is finished, and drying to obtain the tungsten oxide-loaded platinum nanocluster catalyst containing oxygen vacancy. Centrifugally washing the product with deionized water and absolute ethyl alcohol, and drying in a drying oven to obtain tungsten oxide; the preparation method comprises the following steps: dissolving tungsten oxide in deionized water, stirring for a period of time, dissolving and dispersing metal precursor salt of platinum, slowly dropwise adding into the solution, and stirring for reaction; after the reaction is finished, centrifuging the solution, and drying the obtained solid to obtain a solid product; and calcining the solid product in an inert atmosphere to obtain a final product. According to the invention, efficient and stable preparation of the electrolytic water hydrogen evolution catalyst is realized; the obtained catalyst is a tungsten oxide loaded Pt nanocluster electrocatalyst, and the catalyst is uniformly dispersed and is a good water electrolysis hydrogen evolution catalyst.
Need to check novelty before this filing date? Find Prior Art