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

作　　者：吴婷 陈璐 李永刚 沈庆峰[1] 俞小花[1] WU Ting;CHEN Lu;LI Yong-gang;SHEN Qing-feng;YU Xiao-hua(Faculty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Copper Co.,Ltd.,Kunming 650101,China)

机构地区：[1]昆明理工大学冶金与能源工程学院,云南昆明650093 [2]云南铜业科技发展股份有限公司,云南昆明650101

出　　处：《分子催化》2023年第5期492-497,I0003,共7页Journal of Molecular Catalysis(China)

基　　金：国家自然科学基金面上项目(No.51774160)。

摘　　要：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.

关 键 词：活性炭模板 LaMnO_(3) 氧化还原性 电化学性能 

分 类 号：O643.32[理学—物理化学]