Synthesis of three-dimensionally ordered porous perovskite type LaMnO_3 for Al-air battery  

作　　者：Fuwei Xiang Xiuhua Chen Jie Yu Wenhui Ma Yuping Li Ni Yang 

机构地区：[1]School of materials science and engineering, Yunnan University, Kunming 650091, China [2]National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093, China [3]Kunming Metallurgical Research Institute, Yunnan Province, Kunming 650031, China

出　　处：《Journal of Materials Science & Technology》2018年第9期1532-1537,共6页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. U1137601 and 51466005);the Science and Technology Program of Yunnan Province (Grant No.2014RD016);the Program for Innovative Research Team of Yunnan Province (Grant No. 2014HC013)

摘　　要：LaMnO3 catalysts with three-dimensionally ordered holes perovskite structure were prepared via closepacked SiO2 template synthesized by Stober-Frink method. SEM, XRD and BET were employed to characterize the microstructure, phases and specific surface area. CV method was used to the oxygen electrode beha-vior of catalysts. Diameter of the holes was about 330 nm, corresponding to the size of SiO2 template. Full-cell discharge tests were performed on aluminum-air battery fabricated by porous LaMnO3.Results showed that the discharge performance of porous LaMnO3 were 1.54 V, 1.42 V and 1.24 V respectively when the discharge currents were set at 5 mA/cm^2,10 mA/cm^2 and 20 mA/cm^2, respectively, which were higher than that of LaMnO3 prepared by coprecipitation method（1.33 V, 1.09 V, 0.63 V, respectively）.LaMnO3 catalysts with three-dimensionally ordered holes perovskite structure were prepared via closepacked SiO2 template synthesized by Stober-Frink method. SEM, XRD and BET were employed to characterize the microstructure, phases and specific surface area. CV method was used to the oxygen electrode beha-vior of catalysts. Diameter of the holes was about 330 nm, corresponding to the size of SiO2 template. Full-cell discharge tests were performed on aluminum-air battery fabricated by porous LaMnO3.Results showed that the discharge performance of porous LaMnO3 were 1.54 V, 1.42 V and 1.24 V respectively when the discharge currents were set at 5 mA/cm^2,10 mA/cm^2 and 20 mA/cm^2, respectively, which were higher than that of LaMnO3 prepared by coprecipitation method（1.33 V, 1.09 V, 0.63 V, respectively）.

关 键 词：SiO2 template Pervoskite Porous LaMnO3 Al-air battery 

分 类 号：TB2[一般工业技术—工程设计测绘]