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三维有序大孔钙钛矿材料的制备
  • ISSN号：0023-074X
  • 期刊名称：《科学通报》
  • 时间：0
  • 分类：TQ426.81[化学工程]
  • 作者机构：[1]南京理工大学动力工程学院,南京210094
  • 相关基金：国家自然科学基金资助项目（50936002）
作者： 方俊飞[1], 宣益民[1], 李强[1]
关键词： 聚苯乙烯微球, 胶晶模板法, 3DOM, 钙钛矿型材料, 热致变色材料
中文摘要：

以制备三维有序大孔（3DOM）La0.8Sr0.2MnO3和La0.7Ca0.2Sr0.1MnO3钙钛矿材料为例,研究3DOM钙钛矿热致变色材料的制备方法.采用自组装方法将粒径约为220nm的聚苯乙烯（PS）微球组装成三维有序排列的胶体晶体模板,以La（NO3）3·6H2O,Ca（NO3）2·4H2O,Sr（NO3）2,Mn（CH3COO）2·4H2O、乙醇等配制的混合金属硝酸盐溶液为前驱填充于PS胶晶模板间隙中,经干燥和煅烧除去微球模板后得到三维有序大孔（3DOM）La0.8Sr0.2MnO3和La0.7Ca0.2Sr0.1MnO3材料.结果表明,由于填充次数不同,得到3DOM材料的骨架厚度不同,其孔径收缩率也相差较大.同时,由于制备方法不同,3DOM和块体La0.8Sr0.2MnO3材料的居里温度也相差较大.

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期刊信息
  • 《科学通报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国科学院
  • 主编：周光召
  • 地址：北京东黄城根北街16号
  • 邮编：100717
  • 邮箱：csb@scichina.org
  • 电话：010-64036120 64012686
  • 国际标准刊号：ISSN：0023-074X
  • 国内统一刊号：ISSN：11-1784/N
  • 邮发代号:80-213
  • 获奖情况:
  • 首届国家期刊奖,中国期刊方阵“双高”期刊,第三届中国出版政府奖
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  • 被引量:81792