高级检索
无机材料学报

无机材料学报

• •    

一锅法合成高温氢燃料电池用高效无钴复合阴极

刘通1,2, 黄溯2, 朱诗悦3, 查方林4, 胡学雷1, 王瑶2   

  1. 1.武汉工程大学 化工与制药学院,磷矿及其共伴生资源绿色高效开发利用全国重点实验室,绿色化工过程教育部重点实验室,湖北省新型反应器与绿色化学工艺重点实验室,武汉 420205;
    2.武汉大学 动力与机械学院, 武汉 430072;
    3.淮南师范学院 低温共烧材料安徽省重点实验室, 淮南 232038;
    4.国网湖南省电力有限公司电力科学研究院, 长沙 410208
  • 收稿日期:2025-04-13 修回日期:2025-06-17
  • 作者简介:刘 通, 副教授. E-mail: liu_tong@wit.edu.cn
  • 基金资助:
    湖北省自然科学基金(2024AFB754); 武汉工程大学校内基金 (K202201); 国网湖南省电力有限公司科技项目(5216A5240007); 低温共烧材料安徽省重点实验室开放基金(2024LCA03)

Preparation of Cobalt-free Composite Cathode for Efficient High Temperature Hydrogen Fuel Cell via One-pot Synthesis Method

LIU Tong1,2, HUANG Su2, ZHU Shiyue3, ZHA Fanglin4, HU Xuelei1, WANG Yao2   

  1. 1. State Key Laboratory of Green and Efficient Development of Phosphorus Resources, Key Laboratory of Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China;
    2. School of Power and Mechanical Engineering, Wuhan University, Hubei 430072, China;
    3. Anhui Province Key Laboratory of Low-Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China;
    4. State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410208, China
  • Received:2025-04-13 Revised:2025-06-17
  • About author:LIU Tong, associate professor. E-mail: liu_tong@wit.edu.cn
  • Supported by:
    Natural Science Foundation of Hubei Province (2024AFB754); The Start-up Research Funds from Wuhan Institute of Technology (K202201); Science and Technology Project of State Grid Hunan Electric Power Co., Ltd. (5216A5240007); The Open Research Fund Program of Anhui Key Laboratory of Low Temperature Co-fired Materials (2024LCA03)

PDF (PC)

12

摘要： 高温氢燃料电池——固体氧化物燃料电池（SOFC）由于具有能量转换效率高、燃料适应性强、环境友好、全固态结构等优点被认为是实现“双碳”目标的一种有效的能量转换装置。但是SOFC的传统钴基阴极成本较高、易挥发、热膨胀系数高、易与电解质发生反应等问题,本研究采用一锅法制备了无钴复合阴极Sm0.6Sr0.4FeO3-δ-Ce0.8Sm0.2O1.9(O-SSF-SDC),其中钙钛矿型金属氧化物SSF 和萤石型氧化物SDC的质量分数分别为75%和25%。微观形貌和元素分布结果表明,与传统的机械混磨方法相比,一锅法制备的O-SSF-SDC复合阴极材料的颗粒尺寸更加均匀,可以为阴极的氧还原反应提供更多的反应活性位点,700 ℃空气气氛条件下O-SSF-SDC复合阴极对称电池的界面阻抗低至0.175 Ω·cm2,此时同时当O-SSF-SDC单电池的阴极和阳极分别暴露于空气和3% H2O湿润的氢气时电池的最大输出功率可达610 mW·cm-2,展示出与传统钴基阴极相当的电化学性能。这些结果表明一锅法可以制备高性能复合阴极,本研究可以为高性能高温氢燃料电池的研发提供借鉴。

关键词: 高温氢燃料电池, 固体氧化物燃料电池, 无钴阴极, 一锅法

Abstract: High-temperature hydrogen fuel cell, solid oxide fuel cell (SOFC), is regarded as an effective energy conversion device for achieving the "dual carbon" goals due to its advantages such as high energy conversion efficiency, strong fuel flexibility, environmental friendliness, and all-solid-state structure. To address the issues of high cost, volatility, high thermal expansion coefficient, and easy reaction with electrolyte of traditional cobalt-based cathodes, a cobalt-free composite cathode (O-SSF-SDC), consisting of 75%(in mass) perovskite oxide Sm0.6Sr0.4FeO3-δ (SSF) and 25%(in mass) fluorite structure Ce0.8Sm0.2O1.9 (SDC), was prepared by one-pot synthesis method for solid oxide fuel cell (SOFC) application. The morphological results and element mapping images demonstrated that the O-SSF-SDC composite cathode exhibited uniform particle size, which provide more active reaction sites for the oxygen reduction reaction in the cathode. The symmetrical cell with O-SSF-SDC cathode showed a relatively low electrode polarization resistance of 0.175 Ω·cm2 at 700 ℃ in air, while the maximum output power of the single cell equipped with O-SSF-SDC cathode reached 610 mW·cm-2 when exposing the anode and cathode to 3% H2O wet H2 and ambient air, respectively, demonstrating comparable electrochemical performance to traditional cobalt-based cathodes. This work can provide reference for the development of efficient high-temperature hydrogen fuel cells.

Key words: high temperature hydrogen fuel cell, solid oxide fuel cell, cobalt free cathode, one-pot method

中图分类号: