大连工业大学学报2017，Vol.36Issue(3)：206-209,4.
溶胶凝胶法制备Ca3Co4O9及其性能分析
Preparation of Ca3Co4O9 thermoelectric materials by sol-gel method and its performance analysis
李佳书 1胡志强 1秦艺颖 1李亚玮1
作者信息
- 1. 大连工业大学纺织与材料工程学院, 辽宁大连 116034
- 折叠
摘要
Abstract
The thermoelectric material Ca3Co4O9 were calcined at different temperature by sol-gel method, and characterized by XRD, SEM, EDS, IR, and porosity measurement.The results showed that the optimum calcination temperature was 800 ℃.The XRD pattern was consistent with the standard JCPDS pattern calcined at 800 ℃ and sintered at 900 ℃, and no impurities were found.The structure was tight and had smaller pore, less water absorption, lower resistivity and higher Seebeck coefficient.The power factor could reach to 180 μW/mK2 at 1 050 K.关键词
Ca3Co4O9/热电材料/溶胶-凝胶法/电阻率/塞贝克系数Key words
Ca3Co4O9/thermoelectric material/sol-gel method/resistivity/Seebeck coefficient分类
化学化工引用本文复制引用
李佳书,胡志强,秦艺颖,李亚玮..溶胶凝胶法制备Ca3Co4O9及其性能分析[J].大连工业大学学报,2017,36(3):206-209,4.
