一种双功能中空氮掺杂碳纳米盒负载钌-二氧化钌纳米催化剂及其制备方法和应用
By preparing hollow nitrogen-doped carbon nanotubes to support ruthenium-ruthenium dioxide nanocatalysts, the problems of catalyst activity and stability during water electrolysis were solved, and highly efficient electrocatalytic water electrolysis was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WEIFANG UNIV OF SCI & TECH
- Filing Date
- 2025-12-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing catalysts exhibit slow HER and OER reaction kinetics during water electrolysis, and RuO2 is unstable under OER conditions, making it difficult to achieve efficient electrocatalytic complete water electrolysis.
Using ZIF-8, ruthenium acetylacetone, and NaBr as raw materials, hollow nitrogen-doped carbon nanotube supported ruthenium-dioxide nanocatalysts were prepared by calcination under inert and air atmospheres. This exposed the active material and formed a Ru-RuO2 heterojunction, thereby improving catalytic activity and stability.
In 1 M KOH electrolyte, the HER overpotential was 44 mV and the OER overpotential was 253 mV, exhibiting excellent electrocatalytic water splitting activity and stability, approaching the performance of commercial Pt/C and RuO2.
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Figure CN121407144B_ABST