Ceramic Anode Materials for Solid Oxide Fuel Cells

固体氧化物燃料电池陶瓷阳极材料

• 批准号: 2275221
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2275221
• 关键词: Ceramic; Anode; Materials; Solid; Oxide

Solid oxide fuel cells (SOFCs) offer very high efficiency in the conversion of chemical energy in a fuel to electrical energy and can potentially run with a variety of readily available hydrocarbon fuels. SOFCs operate at high temperature (>750 oC), though there is considerable interest in decreasing the working temperature of SOFCs to reduce costs and aging. Unfortunately, SOFC performance decreases rapidly as the operating temperature is reduced. The issue that limits the current SOFC anode performance is the use of multi-component composite systems to meet the anode requirements. Conventional SOFC anode material suffer from serious drawbacks, such as carbon build-up (coking), sulfur poisoning and low tolerance to redox cycling.The proposed PhD project will focus on developing highly electronically conducting perovskite electrode materials that provide high performance with hydrocarbon and sulphur containing fuels in intermediate temperature (500-700 oC) solid oxide fuel cells (IT-SOFCs). The role of the PhD candidate will be to design new mixed ionic electronic conducting materials with high electrocatalytic activity for fuel oxidation. Within this area of research, you will master wet chemical methods, SOFC fabrication and measuring techniques. To gain insights into these materials advanced characterizations methods (i.e., XRD, SEM, TEM, XPS, etc.) will be applied for structural characterization of these anode materials.

固体氧化物燃料电池（sofc）在将燃料中的化学能转化为电能方面提供了非常高的效率，并且可能与各种现成的碳氢化合物燃料一起运行。sofc工作在高温下（约750℃），尽管人们对降低sofc的工作温度以降低成本和老化有相当大的兴趣。不幸的是，SOFC性能随着工作温度的降低而迅速下降。限制当前SOFC阳极性能的问题是使用多组分复合系统来满足阳极要求。传统的SOFC阳极材料存在严重的缺陷，如碳积聚（焦化）、硫中毒和对氧化还原循环的耐受性低。拟议的博士项目将专注于开发高导电性的钙钛矿电极材料，该材料可在中温（500-700℃）固体氧化物燃料电池（it - sofc）中为含碳氢化合物和含硫燃料提供高性能。博士候选人的角色将是设计具有高电催化活性的新型混合离子电子导电材料用于燃料氧化。在本研究领域，您将掌握湿化学方法，SOFC制造和测量技术。为了深入了解这些材料，将采用先进的表征方法（即XRD， SEM， TEM， XPS等）对这些阳极材料进行结构表征。