纳米结构SOFC电极构筑及电催化活性表征
关键词 中温燃料电池 纳米阴极 离子浸渍 粒子修饰 电催化
毕业论文设计说明书外文摘要
Title Nanostructured SOFC electrode structure characterization
and electrocatalytic activity
Abstract
Solid oxide fuel cell (SOFC) is the hot spot of the current research in the field of energy, and the cathode materials of building is the key to the fuel cell. In this paper, by ion impregnation method to prepare nano composite electrode and to study impregnation, calcination temperature and other factors on nano electrode micro structure and electrochemical properties of the influence, finally puts forward a mature nano electrode construct method of preparation process of porous ceramic membrane.The main research contents are as follows:(1)LnBaFe2O5 nano powder was prepared by Sol-gel method.(2)the preparation of LBF-SDC composite cathode ion impregnation method.The XRD test, powder specific surface and with SDC or Pr6O11 nanoparticles modified SBF electrode surface after test performance.Preparation of SBF-SDC composite cathode by mechanical mixing method,to test its conductivity,electrochemical,impedance spectroscopy,polarization curves,XRD,electro catalytic activity etc.
Keywords Intermediate temperature solid oxide fuel cell; Nano cathode materials;
Ion impregnation;Modification of cathode particles;Electrocatalysis
目 次
1 绪论 1
1.1 引言 1
1.2 燃料电池简介 1
1.3 固体氧化物燃料电池 2
1.3.1 SOFC的工作原理 2
1.3.2 SOFC中各部件特性要求 3
1.4 现今SOFC的发展状况4
1.5 复合阴极5
1.5.1 复合电极一般特性5
1.5.2 掺杂氧化镨或SDC5
2 实验和表征 6
2.1 实验原料 6
2.2 实验仪器 7
2.3 材料合成处理与电极制备7
2.3.1 SmBaFe2O3(SBF）纳米粉体的制备7
2.3.2 电解质材料SDC的制备8
2.3.4 SBF-SDC复合阴极的制备9
2.4 表征方法与性能测试10
2.4.1 X射线衍射分析10
2.4.2 电导率测试10
2.4.3 热膨胀系数10
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