Nanometer flower-shaped MnFeCoNiOxHy / NF composite material and preparation method and application thereof
The nanoflower-shaped MnFeCoNiOxHy/NF composite material was synthesized by one-step hydrothermal method, which solved the problem of complex electrocatalytic material process and insufficient stability of large-current electrolytic water in the prior art, and achieved long-term stability of large-current electrolytic water in alkaline solution.
CN120210870APending Publication Date: 2025-06-27SHANGHAI UNIV OF ENG SCI
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202510345270.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2025-06-27
AI Technical Summary
Technical Problem
In the prior art, the process for synthesizing electrocatalytic materials is relatively complex, and the stability time of high-current electrolyzing water does not exceed 1,000 hours.
Method used
Nanoflower-shaped MnFeCoNiOxHy/NF composite material was grown on foam nickel by one-step hydrothermal method, and the structural design of nanosheet assembly was adopted to achieve the stability of high-current electrolytic water.
Benefits of technology
The stability of electrolyzed water with high current in 1M KOH alkaline solution is achieved, and it can work continuously for 1000 hours under 200mA cm-2 without significant performance attenuation.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN120210870A_ABST
Abstract
The invention discloses a nano flower-shaped MnFeCoNiOxHy / NF composite material as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out ultrasonic treatment on foamed nickel in a hydrochloric acid solution, then sequentially carrying out ultrasonic treatment in deionized water and ethanol, dissolving Co (NO3) 2.6 H2O, Fe (NO3) 3.9 H2O, Ni (NO3) 2.6 H2O, Mn (NO3) 2.4 H2O and urea in the deionized water under a stirring condition, adding NH4F for etching, mixing the solution and the foamed nickel to carry out hydrothermal reaction, and drying to obtain the nano flower-shaped MnFeCoNiOxHy / NF composite material. And the nano flower-shaped MnFeCoNiOxHy / NF composite material is obtained. The composite material disclosed by the invention has excellent electro-catalytic performance under both low current and high current, an alkaline electrolytic bath based on the composite material can drive integral water decomposition for 1000h under the condition of 200mA cm <-2 >, obvious performance degradation cannot occur, and the stability of high-current water electrolysis is good.
Need to check novelty before this filing date? Find Prior Art