Investigation of ammonium polyphosphate metal oxide composite ceramics as electrolytes for fuel cells operating in the intermediate temperature regime

聚磷酸铵金属氧化物复合陶瓷作为中温燃料电池电解质的研究

• 批准号: 5418542
• 负责人: Professor Dr. Ulrich Stimming
• 金额: --
• 依托单位: Lehrstuhl für Funktionelle Materialien
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2004
• 资助国家: 德国
• 起止时间: 2003-12-31 至 2006-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5418542?language=en
• 关键词: Investigation; ammonium; polyphosphate; metal; oxide

Fuel cells are effective alternatives to combustion engines for electrical power generation because of their very high efficiencies and low pollution levels. The intermediate temperature fuel cells (200-500°C) are very attractive since they combine the advantages of PEMFCs and SOFCs. It would be desirable to develop such kinds of fuel cells. For this purpose, developing new electrolytes based on solid-state proton conducting materials is a promising approach. Primary studies at TUM have found that Ammonium polyphosphate (APP) composites combine the high protonic conductivity and mechanical stability and exhibit interesting properties as an electrolyte in the intermediate temperature fuel cells. The Chinese team USTC and the German team TUM propose a joint Sino-German project with the objective of the development of ceramic fuel cells based on APP composite electrolyte operating in the intermediate temperature range (200-500°C). The research efforts are concentrated on solving key problems in the development of the intermediate temperature ceramic fuel cells. The Chinese team USTC will contribute to development of non-platinum composite electrodes, fabrication of APP composite based membranes and single cells and characterization of single cells using hydrogen, methanol, or/and higher alcohols as fuels. The German team TUM will contribute by investigating the thermochemical stability and conductivity of APP composites, preparation and electrocatalytic studies of cermet electrodes based on APP composites and Pt, and characterisation of single cells using hydrogen, methanol, or/and higher alcohols as fuels. The Chinese team USTC has extensive experiences on membrane and thin film fabrication and corresponding equipment. The German team TUM specializes in development of APP composite as an electrolyte and electrocatalytic studies of electrodes, and has excellent equipment for electrochemical tests. The expertises of both teams complement each other very well. This collaboration can therefore contribute to the important advancement in the development of intermediate temperature fuel cells.

燃料电池是内燃机发电的有效替代品，因为它们具有非常高的效率和低污染水平。中温燃料电池（200-500°C）是非常有吸引力的，因为它们联合收割机了PEMFC和SOFC的优点。希望开发这种类型的燃料电池。为此，开发基于固态质子传导材料的新型电解质是一条很有前途的途径。TUM的初步研究发现，聚磷酸铵（APP）复合材料联合收割机结合了高质子导电性和机械稳定性，并显示出有趣的性能，作为中温燃料电池的电解质。中国团队USTC和德国团队TUM提出了一个中德联合项目，目标是开发在中温范围（200-500°C）工作的基于APP复合电解质的陶瓷燃料电池。研究工作集中在解决中温陶瓷燃料电池发展中的关键问题。中国团队USTC将致力于非铂复合电极的开发，APP复合膜和单电池的制造以及使用氢，甲醇或/和高级醇作为燃料的单电池的表征。德国团队TUM将通过研究APP复合材料的热化学稳定性和导电性、基于APP复合材料和Pt的金属陶瓷电极的制备和电催化研究以及使用氢、甲醇或/和高级醇作为燃料的单电池的表征做出贡献。中国团队中国科学技术大学在薄膜和薄膜制造以及相应设备方面拥有丰富的经验。德国团队TUM专门从事APP复合材料作为电解质的开发和电极的电催化研究，并拥有出色的电化学测试设备。两个团队的专业知识互补得很好。因此，这种合作有助于中温燃料电池开发的重要进展。