Anode material of solid oxide electrolytic cell, solid oxide electrolytic cell and preparation method and application of solid oxide electrolytic cell
By replacing La with lanthanide metals Pr or Sm and adjusting the Mn content in perovskite oxide anode materials, the low selectivity of ethane to ethylene was solved, achieving a highly efficient methane oxidative coupling reaction, reducing the electrolysis potential, and improving economic efficiency.
CN122013220APending Publication Date: 2026-05-12CHINA PETROLEUM & CHEMICAL CORP +1
0 Cites 0 Cited by
Patent Information
- Application Number
- CN202411603698.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2026-05-12
AI Technical Summary
Technical Problem
Existing perovskite oxide materials suffer from low selectivity for ethane and ethylene in methane oxidative coupling reactions, and traditional transition metal substitution cannot effectively alter the reaction pathway.
Method used
By replacing La in La0.6Sr0.4MnO3-δ with lanthanide metals Pr or Sm and controlling the Mn content through stoichiometry, Ln0.6Sr0.4Mn1+xO3-δ anode materials were prepared. Combined with preparation processes such as sol-gel method, the types of active adsorbed oxygen on the material surface were optimized.
Benefits of technology
It improves the selectivity of ethane and ethylene in methane oxidative coupling, reduces the electrolysis potential, and improves the economics of the products on the anode side.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of solid oxide batteries and electrolytic cells, and relates to the field of carbon dioxide reduction and methane oxidative coupling, in particular to a solid oxide electrolytic cell anode material, a solid oxide electrolytic cell and a preparation method and application of the solid oxide electrolytic cell anode material. The general formula of the chemical formula of the anode material is Ln < 0.6 > Sr < 0.4 > Mn < 1 + x > O < 3-delta >, x is-0.05 to 0.05, and Ln is one of Pr and Sm; and delta represents the non-stoichiometric ratio of oxygen in the material. According to the solid oxide electrolytic cell anode material, the potential during preparation of ethylene and ethane through coupling of carbon dioxide and methane oxide can be reduced, the selectivity of ethane and ethylene in oxidative coupling of methane can be improved on the basis of stoichiometric regulation and control on Mn, and the economical efficiency of a product on one side of an anode is improved.
Need to check novelty before this filing date? Find Prior Art