一种杂原子修饰铂锌有序合金催化剂的制备方法及其在电化学析氢反应中的应用

By supporting PtZn alloy catalysts on carbon supports modified with heteroatoms, the problems of low atom utilization and poor durability of Pt-based catalysts in the hydrogen evolution reaction of water electrolysis are solved. High activity and stable hydrogen evolution performance in water electrolysis are achieved with low Pt loading, and the problems of PtZn alloy particle agglomeration and Pt dissolution loss in the prior art are solved.

CN120193303BActive Publication Date: 2026-07-17DALIAN UNIV OF TECH
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202510365904.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-07-17
Estimated Expiration
2045-03-26

AI Technical Summary

Technical Problem

Existing Pt-based catalysts suffer from low atom utilization and poor durability in the hydrogen evolution reaction of water electrolysis. In particular, the scarcity and high cost of Pt reserves limit its large-scale application. Furthermore, existing PtZn alloy preparation methods are difficult to control the particle size of the alloy, which easily leads to agglomeration.

Method used

A PtZn alloy catalyst was supported on a carbon support modified with heteroatoms. Through the anchoring effect of heteroatoms with Pt, the alloy nanoparticles were stabilized, particle agglomeration and Pt dissolution loss were inhibited, and the alloy particle size was controlled by a one-step pyrolysis reduction method.

Benefits of technology

It significantly improves the activity and stability of hydrogen evolution through water electrolysis, reduces the Pt loading, enhances the catalyst's durability and electrochemical performance, and the alloy particles exhibit good dispersibility, thus avoiding agglomeration.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120193303B_ABST
    Figure CN120193303B_ABST
Patent Text Reader

Abstract

本发明属于Pt基纳米电催化剂技术领域，公开了一种杂原子修饰铂锌有序合金催化剂的制备方法及其在电化学析氢反应中的应用。本发明采用经过杂原子掺杂修饰的碳载体来负载PtZn，通过杂原子与Pt的锚定作用，稳定了合金纳米粒子，有效地阻止了颗粒的团聚现象，并且抑制了析氢过程中Pt原子的溶出损失。相较于20％载量的商业Pt / C催化剂，所制备的PtZn有序合金催化剂在降低Pt用量的同时，显著的提升了电解水析氢的比活性和稳定性。
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Catalyst based on varisized platinum-zinc nanoparticles loaded on zinc-containing monatomic carbon-nitrogen carrier, preparation method and application thereof

    CN111686782A

  • Preparation method and application of low-load platinum-zinc ordered alloy catalyst

    CN115613073A

  • Nitrogen-doped carbon-loaded platinum-zinc alloy electrocatalyst as well as preparation method and application thereof

    CN114420961A

  • Doped platinum-based catalyst as well as preparation method and application thereof

    CN115354360A