聚吡咯/La_(0.3)Ca_(0.7)Ni_(0.25)Co_(0.75)O_3复合材料的制备、表征及性能  

Preparation,characterization and properties of polypyrrole/La_(0.3)Ca_(0.7)Ni_(0.25)Co_(0.75)O)3 composites

作　　者：林生岭[1] 郭寅丹[1] 储艳文[1] 曹旭[1] 龙丹[1] 万勇[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,镇江212003

出　　处：《化工新型材料》2011年第2期45-46,71,共3页New Chemical Materials

基　　金：国家自然科学基金(20704020);江苏科技大学博士启动基金(2006CL0035)资助

摘　　要：用甘氨酸-硝酸盐燃烧法和溶液原位合成法分别制备了钙钛矿型氧化物La0.3Ca0.7Ni0.25Co0.75O3粉末及其吡咯相对质量分数为60%和80%的聚吡咯/钙钛矿复合微粒PPY/La0.3Ca0.7Ni0.25Co0.75O3。用X射线衍射(XRD)、红外光谱(FTIR)对材料进行了表征。并用循环伏安曲线对复合材料在1mol.L-1的KOH电解质溶液中的氧化还原行为进行了初步研究。结果表明,吡咯含量为80%的PPY/La0.3Ca0.7Ni0.25Co0.75O3的电化学性能最好,阴极峰电位最大,且阳极峰电位最小。perovskite complex oxides La0.3Ca0.7Ni0.25Co0.75O3 and their polypyrrole composites PPY/La0.3Ca0.7Ni0.25Co0.75O3 with 60%and 80% pyrrole were prepared by a glycine-nitrate combustion synthetic method and an in situ polymerization method, respectively. The structure,morphologies properties of the samples were characterized by powder X-ray diffract meter（XRD）, Fourier transform infrared （FTIR） spectrometer. Cyclic voltammetry of PPY/La0.3Ca0.7Ni0.25Co0.75O3 was conducted in 1 mol · L-1 KOH solutions. It was found that PPY/La0.3Ca0.7Ni0.25Co0.75O3 with 800% pyrrole possessed maximum catholic peak potential and minimum anodic peak potential.

关 键 词：钙钛矿 聚吡咯 稀土 复合材料 

分 类 号：O633.5[理学—高分子化学]