Affiliation:
1. School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, P. R. China
2. School of Chemistry and Civil Engineering, Shaoguan University, Shaoguan, Guangdong, 512005, P. R. China
Abstract
La2Mo2O9 doped with cheap metal cations can further increase their conductivity. The transition metal element Mn and the rare-earth element Y co-doped La2Mo2O9-based electrolyte was used, and the sintered ceramic body La[Formula: see text]Y[Formula: see text]Mo [Formula: see text][Formula: see text]Mn[Formula: see text]O [Formula: see text][Formula: see text]([Formula: see text]= 0[Formula: see text]0.4) was prepared by the sol-gel method, sintering at 950°C. The results show that the samples can suppress the phase transition and retain the [Formula: see text]-phase of the structure of La2Mo2O9, due to doping, and it is a single pure phase, which has good sintering performance. Among them, La[Formula: see text]Y [Formula: see text]Mo[Formula: see text]Mn[Formula: see text]O[Formula: see text] reached the maximum ionic conductivity of 0.0292 S⋅cm[Formula: see text] at 800°C, and Ea is 0.425 eV, which can become a solid electrolyte material of IT-SOFC.
Funder
excellent young talents fund project in Universities of Anhui Province
Hefei University Quality Engineering Demonstration Experimental Training Center Project
Hefei University Provincial Quality Engineering Demonstration Chemical Experiment Training Center Project
Hefei University Undergraduate Quality Engineering Project
National Natural Science Foundation Project
Anhui Province key research and development program
Anhui Province Natural Science Foundation Project
Guangdong Provincial Ordinary University Characteristic Innovation Project
excellent scientific research and innovation team of colleges and universities in Anhui Province
Publisher
World Scientific Pub Co Pte Ltd
Subject
General Materials Science