| 镧掺杂钙锰氧体/聚吡咯复合物的制备、表征及其电化学性能 |
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| 引用本文： | 林生岭,曹旭,陈传祥,郭寅丹,储艳文,龙丹,万勇.镧掺杂钙锰氧体/聚吡咯复合物的制备、表征及其电化学性能[J].复合材料学报,2010,27(3):56-60. |
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| 作者姓名： | 林生岭 曹旭 陈传祥 郭寅丹 储艳文 龙丹 万勇 |
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| 作者单位： | 江苏科技大学,材料科学与工程学院,镇江,212003 |
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| 摘 要： | 采用甘氨酸-硝酸盐燃烧法和溶液原位复合技术分别制备了镧掺杂钙锰氧体(La1-xCaxMn0.7Co0.3O3,x=1.0,0.9,0.8,0.7,0.6)粉末及其聚吡咯(PPy)相对质量分数为60%和80%的钙锰氧体/聚吡咯复合物微粒La0.3Ca0.7Mn0.7Co0.3O3/PPy。借助FTIR、XRD、SEM和电化学测试等分析手段表征了钙锰氧体粉末及其复合材料的结构、形貌和电化学性能。结果表明,复合材料中包覆的聚吡咯外层和复合氧化物之间存在相互作用,PPy减少了纳米颗粒的团聚现象,La0.3Ca0.7Mn0.7Co0.3O3和La0.3Ca0.7Mn0.7Co0.3O3/PPy的粒径分别为46.2 nm和43.5 nm,并且复合物的氧化还原峰电流随吡咯含量的增加而变大。
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| 关 键 词： | 聚吡咯 钙钛矿 复合材料 掺杂 |
| 收稿时间： | 2009-06-04 |
| 修稿时间： | 2009-08-28 |
Preparation and characterization of La-doped Ca manganese oxide/polypyrrole composites and its electrochemical properties |
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| LIN Shengling,CAO Xu,CHEN Chuanxiang,GUO Yindan,CHU Yanwen,LONG Dan,WAN Yong.Preparation and characterization of La-doped Ca manganese oxide/polypyrrole composites and its electrochemical properties[J].Acta Materiae Compositae Sinica,2010,27(3):56-60. |
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| Authors: | LIN Shengling CAO Xu CHEN Chuanxiang GUO Yindan CHU Yanwen LONG Dan WAN Yong |
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| Affiliation: | ( Institute of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China) |
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| Abstract: | La-doped Ca manganese oxide powders ((La1- x Cax Mn0. 7Co0. 3O3, x = 1. 0, 0. 9, 0. 8 , 0. 7, 0.6) and their polypyrrole compositesLa0. 3Ca0.7Mn0. 7Co0. 3O3/PPy with 60 % and 80 % PPy were prepared by a glycine-nit rate combustion method and an as-polymerization method, respectively. The structure, morphologies and electrochemical properties of the samples were characterized by means of Fourier transform inf rared (FTIR) spectrometer, powder X-ray diff ractometer (XRD), scanning electron microscope (SEM) and electrochemical tests. The results indicate that interactions exist between polypyrrole and complex oxide. Furthermore, PPy reduces the reunion of the nano2particles, i. e. the particle sizes ofLa0. 3Ca0.7Mn0. 7Co0. 3O3 andLa0. 3Ca0.7Mn0. 7Co0. 3O3/PPy are 46. 2 nm and 43. 5 nm, respectively. The composite redox peak current becomes larger with increasing of pyrrole contents. |
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| Keywords: | polypyrrole perovskite composites doped |
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