采用简易方法合成直接乙醇固体氧化物燃料电池海胆状Pd催化层（英文）  

Facile synthesis of flower-like Pd catalyst for direct ethanol solid oxide fuel cell

作　　者：孙良良 刘丽丽 罗凌虹 吴也凡 石继军 程亮 徐序 郭友敏[2] 

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,江西景德镇333001 [2]安徽大学物理与材料学院,安徽合肥230601

出　　处：《燃料化学学报》2016年第5期607-612,共6页Journal of Fuel Chemistry and Technology

基　　金：supported by the National Nature Science Foundation of China(51302119,51162014 and 51462011);Anhui University personnel start-up funding(10117700069)~~

摘　　要：在室温下,通过电位置换反应在固体氧化物燃料电池的Ni-YSZ(钇掺杂氧化锆)阳极表面制备海胆状Pd催化层。该催化层的结构和性能通过SEM、XRD和电化学等表征手段进行表征。结果表明,三维纳米花状Pd催化剂是由在Ni-YSZ阳极表面形成的多条纳米棒有序的组合而成。通过在Ni/YSZ阳极表面引入该催化层,相比与传统Ni-YSZ阳极,燃料电池的最高功率和稳定性都获得了很大的提升。该研究表明,电位置换反应是一种很高效的在传统Ni-YSZ阳极表面制备纳米抗积炭的功能层的方法。A flower-like Pd layer was synthesized through galvanic displacement reaction on Ni-YSZ （ yttria-stabilized zirconia ） anode at room temperature. The morphology of as-prepared Pd catalyst was characterized by various techniques. It was shown that three-dimensional Pd nanoflowers were formed via nanorods on the Ni-YSZ anode. With Pd nanoflowers as a functional layer of the Ni-YSZ anode, the cell exhibited much higher peak power density and better operation stability in ethanol than that made with conventional Ni-YSZ anode. This study demonstrated that galvanic displacement reaction is a promising way to prepare nanostructured metal catalyst as a result of depressing the carbon deposition in Ni-based anode and improving its output in alcohol fuels.

关 键 词：固体氧化物燃料电池 电位置换反应 阳极 积炭 

分 类 号：TM911.44[电气工程—电力电子与电力传动]