Preparation and characterization of provskite CaMnO3thermoelectric powder via citric acid sol-gel method - 文章详情页

作者：

Zhang, Fei-Peng (Zhang, Fei-Peng.) | Lu, Qing-Mei (Lu, Qing-Mei.) | Zhang, Jiu-Xing (Zhang, Jiu-Xing.) | Zhang, Bing-Xin (Zhang, Bing-Xin.)

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摘要：

n-type　CaMnO3oxide　with　perovskite　structure　is　one　kind　of　promising　thermoelectric　materials　which　can　be　applied　in　high　temperature　fields.　In　this　paper,　CaMnO3colloid　was　prepared　through　sol-gel　method　with　citric　acid　as　chelate,　deionized　water　and　ethylene　glycol　as　solvent　and,　Ca　(NO3)2·2H2O,　Mn　(NO3)2as　starting　materials.　Perovskite　polycrystaline　CaMnO3was　prepared　via　calcining　precursor　of　the　dry　gel.　In　the　end,　analyzed　properties　of　CaMnO3precursor　or　powder　with　TG-DTA,　XRD,　FT-IR　and　SEM,　the　results　indicated　that,　the　perovskite-structured　CaMnO3polycrystaline　could　be　formed　though　calcining　precursor　at　950°C　for　5　h.

关键词：

Manganese Organic solvents Perovskite Sol-gels Characterization Manganese removal (water treatment) Sol-gel process Citric acid Deionized water Ethylene glycol Ethylene Calcination Thermoelectricity

作者机构：

[ 1 ] [Zhang, Fei-Peng]The Key Laboratory of Advanced Functional Materials Ministry of Education, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Lu, Qing-Mei]The Key Laboratory of Advanced Functional Materials Ministry of Education, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhang, Jiu-Xing]The Key Laboratory of Advanced Functional Materials Ministry of Education, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhang, Bing-Xin]The Key Laboratory of Advanced Functional Materials Ministry of Education, Beijing University of Technology, Beijing 100124, China

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