无CO2排放式共生电力与烯烃的固体氧化物燃料电池反应器阳极材料及电催化脱氢的研究

项目名称： 无CO2排放式共生电力与烯烃的固体氧化物燃料电池反应器阳极材料及电催化脱氢的研究

项目编号： No.21203236

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 物理化学

项目作者： 符显珠

作者单位： 中国科学院深圳先进技术研究院

项目金额： 25万元

中文摘要： 质子膜固体氧化物燃料电池（SOFC）由于阴极氧无法到达阳极氧化燃料，有望进行碳氢化合物无CO2排放地高效清洁发电。但这需要能催化脱氢提供质子的新型阳极而不是如传统氧离子SOFC中催化碳氢化合物完全氧化生成CO2。碳氢化合物烷烃在脱氢发电时则转化成高选择性增值烯烃而无现石化生产烯烃的高能耗与高CO2排放,SOFC同时就成了一个膜反应器。本研究工作将开发高性能低成本SOFC反应器新型脱氢阳极材料，优化阳极组成及电极三相反应界面微结构，组装质子膜SOFC反应器，使用烷烃如甲烷、乙烷等为燃料进行发电与共产烯烃；并利用电化学与谱学等方法结合探索烷烃高温电催化脱氢的影响因素与机制。无CO2排放的碳氢化合物质子膜SOFC反应器与脱氢阳极材料的研制能够高效清洁地利用化石燃料与生物质，具较高的经济与社会价值。高温电催化脱氢则是电化学与传统烷烃脱氢催化的新交叉结合，具有良好的基础研究意义。

中文关键词： 固体氧化物燃料电池；烷烃脱氢；电催化剂；质子导体；膜反应器

英文摘要： Proton ceramic membrane solid oxide fuel cells(SOFCs) might efficiently convert hydrocarbon into electrical energy without CO2 greenhouse gas emissions since oxygen in the cathode can not reach anode to oxidize fuels. Novel anode of dehydrogenation is necessary for production of protons from fuels via catalytical reaction. It is not like the conventioanl anode in oxygen ion SOFCs to completely oxidize hydrocarbons to form CO2. Value-added alkene with high selectivtiy is co-generated when the hydrocarbon is dehydrogenated in the SOFC membrane reactors to produce electricity. Co-production of alkene in SOFC reactors has no a large amounts of energy consumption and CO2 emission which in convnetional process for alkene production.Here we propose to develop new dehydrogenation anode materials with high performance and low cost for the SOFC reactors.The composition and thri-phase boundary microstucture of dehydrogenation anode will be optimized. Aklane such as methane and ethane will be used as fuels for the SOFC reactor to co-produce electricity and alkenes. The effects and mechanism of the electro-dehydrogenation of akanes will be investigated using electrochemical and spectroscopic methods. The proposed project has high economic and social significance since the SOFC reactors can utilize the fossil fuels and biomas

英文关键词： solid oxide fuel cells；alkane dehydrogenation；electrocatalysts；proton conductor；membrane reactors