活性炭模板制备氧化还原催化剂LaMnO_(3)及其电化学性能研究

Preparation of REDOX Catalyst LaMnO_(3) by Activated Carbon Template and Its Electrochemical Properties

利用活性炭模板剂制备了氧化还原催化剂LaMnO_(3),采用X射线衍射、透射电子显微镜和比表面积分析仪(BET)等分析手段对催化剂进行了表征,通过循环伏安、线性扫描、蓝电测试等测试方法对LaMnO_(3)电化学性能进行了测试分析.实验结果表明:利用活性炭模板法所制备出的LaMnO_(3)-AC比表面积(20.561 m^(2)·g^(-1))远大于共沉淀法制备的LaMnO_(3)-G(8.486 m^(2)·g^(-1)),并且所制备出的LaMnO_(3)具有良好ORR催化活性.这为相关催化剂材料的设计和研究提供了实验依据和理论基础.

The REDOX catalyst LaMnO_(3) was prepared by using activated carbon template agent.The catalyst was characterized by X-ray diffraction,transmission electron microscope and BET,and the electrochemical performance of LaMnO_(3) was tested by cyclic voltammetry,linear scanning and blue electric test.The experimental results showed that the specific surface area of LAMNO_(3)-AC prepared by activated carbon template method(20.561 m^(2)/g)was much larger than that prepared by coprecipitation(8.486 m^(2)/g),and the prepared LaMnO_(3) had good ORR catalytic activity.This provides experimental and theoretical basis for the design and research of related catalyst materials.