High efficiency, high syngas yield tubular solid oxide electrolysis cell and preparation and use

By loading CeO2 onto a NiO/YSZ anode, a high-efficiency tubular solid oxide electrolyzer with high syngas yield was prepared, solving the problem of insufficient stability of Ni-based catalysts and achieving low-cost and high-efficiency co-electrolysis performance of CO2 and H2O.

CN122406265APending Publication Date: 2026-07-17SOUTH CHINA UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2026-04-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The Ni-based catalyst in traditional tubular solid oxide electrolyzers is prone to agglomeration, oxidation, and carbon deposition, resulting in insufficient battery stability and the need to introduce protective gas to maintain operation, which affects its application efficiency.

Method used

A high-efficiency tubular solid oxide electrolytic cell with high syngas yield was prepared by loading CeO2 onto a NiO/YSZ anode using an impregnation method and then performing multiple vacuum drying and calcination processes, thereby improving the ion and electron conduction capabilities of the electrode.

Benefits of technology

It achieves high syngas yield with low cost and low energy consumption, easy adjustment of battery composition, environmentally friendly preparation process, excellent catalytic activity, significantly improved CO2 and H2O co-electrolysis performance, low polarization impedance, and high syngas production rate and Faraday efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122406265A_ABST
    Figure CN122406265A_ABST
Patent Text Reader

Abstract

本发明公开了高效、高合成气产率管式固体氧化物电解池及制备与应用。本发明将CeO2浸渍液滴涂在管式电池的NiO / YSZ阳极上,煅烧后得到一种高效、高合成气产率管式固体氧化物电解池。本发明得到的高效、高合成气产率管式固体氧化物电解池在CO2 / H2O共电解中表现出显著的催化活性。在800℃下,1.4V的极化阻抗仅为0.17Ω·cm2,1.6V下的电流密度到达1.1A·cm‑2,合成气产速达到7.04mL·min‑1·cm‑2,法拉第效率接近100%。
Need to check novelty before this filing date? Find Prior Art