摘要
采用溶胶-凝胶法、共沉淀法、非晶态配位法三种不同的方法制备了纳米级的钙钛矿型复合氧化物LaMnO3,并通过XRD、FT-IR、ICP实验技术对所制备的系列纳米催化剂进行了表征。结果表明:3种不同的方法所制备的复合氧化物均形成了ABO3型钙钛矿型结构,都属于纳米颗粒,初步考察了制备条件对复合氧化微粒的形成结构的影响,非晶态配位法制备的LaMnO3平均粒度最小,溶胶-凝胶法制备的样品浓度最高。
Sol-gel,coprecipitation,amorphous coordination act of three different methods prepare nanometer perovskite-type composite oxides LaMnO3, a series of nano-catalysts of the preparatior. were characterized by XRD,FT-IR and ICP complex oxides what three different methods experimental technology. The results showed that：the prepared are formed ABO3-perovskite-type structure,all belong to nanoparticles. It know that the conditions on the formation of complex oxide particles have a impact of the structure. Apreliminary inspection of conditions on the formation of composite particles of the impact of the structure,the average size of LaMnO3 what amorphous coordination act prepared is the smallest. Samples prepared by sol-gel has the highest concentration.
出处
《光谱实验室》
CAS
CSCD
2008年第4期530-533,共4页
Chinese Journal of Spectroscopy Laboratory
