纳米结构SOFC电极构筑及电催化活性表征

摘要固体氧化物燃料电池（SOFC）是当今能源领域研究的热点，而其中阴极材料的构筑则是燃料电池的关键。本文论述了采用离子浸渍法以及机械混合法制备纳米复合电极，从而研究其浸渍量、煅烧温度等因素对纳米电极的微结构和电化学性能的影响，最终能提出一条成熟的纳米电极构筑方法制备多孔陶瓷薄膜的工艺路线。主要研究内容有：（1）采用溶胶-凝胶法制备SmBaFe2O5纳米粉体。（2）还采用了离子浸渍法制备SBF-SDC复合阴极，测试其XRD，电导率，热膨胀系数等。并用不同浸渍量的SDC和Pr6O11纳米粒子修饰SBF电极表面以及相同浸渍量下的不同烧结温度制成后的两类样品测试其电化学性能。最后得出SmBaFe2O3应用于阴极材料后，最佳的各项实验参数。33132
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 纳米结构SOFC电极构筑及电催化活性表征:http://www.751com.cn/cailiao/lunwen_30047.html