期刊文献+

纳米钛酸钡及其复合湿敏材料的IR与XPS谱分析

IR and XPS spectra analysis of nanocrystalline BaTiO_3 and its humidity sensing composites
下载PDF
导出
摘要 由纳米钛酸钡与高分子季胺盐型丙烯酸树脂(RMX)构成的复合材料的湿敏性能优于纳米钛酸钡.对纳米钛酸钡及其复合湿敏材料的红外光谱(IR)及光电子能谱(XPS)进行了分析和比较.复合材料的IR谱基本是钛酸钡和RMX的IR谱的结合.在XPS谱中,两类湿敏材料的O(1s)峰都是由晶格氧Ol和吸附氧Oa两峰构成.复合材料的Oa/Ol比大于纳米钛酸钡.在O(1s),Ba(3d)和Ti(2p)谱中,复合材料的主峰同纳米钛酸钡相比,向低结合能方向移动0.3-0.6eV.这是因为复合材料中纳米与有机材料边界区域的晶格结构产生畸变,使其结合能略有减弱. The humidity sensing composite material made of nano-BaTiO 3 and polymer RMX has better humidity sensitivity than nano-BaTiO 3 .IR and XPS spectra of the nano-BaTiO 3 and the corresponding com posite mate rial were compared and analyzed.The IR spectrum of the composite material looks like a combi nation of those of BaTiO 3 and RMX.In the XPS spectra,O (1s)peaks of the two materials are both composed of two peaks of the lattice oxygen Ol and the adsorption oxygen Oa.The O a /O l ratio of the composite ma terial is larger than that of Ba TiO 3 .The main peaks of the composite material in O(1s),Ba (3d)and Ti (2p)spectra shift0.3~0.6eV to the low combination energy direction com pared with BaTiO 3 .This is attributed to the small distortion of the lattice structure in the boundary range of the nanocrystalline Ba TiO 3 and RMX,which decreases the combination energy.
出处 《材料科学与工艺》 EI CAS CSCD 2002年第1期45-47,共3页 Materials Science and Technology
基金 国家自然科学基金资助项目(60074031)
关键词 湿敏材料 纳米复合材料 IR XPS 钛酸钡 季胺盐型丙烯酸树脂 Humidity sensing material nano-com posite IR XPS.
  • 引文网络
  • 相关文献

参考文献5

  • 1[1]Xi Li. Synthesis and humidity sensitive properties of nanocrystalline BaTiO3 thick films[J]. Mater Chem Phys, 1997, 50,227~232.
  • 2[2]WANG Jing. Influence of doping on humidity sensing properties of BaTiO3[J]. Mater Sci Lett, 1998, 17: 857~859.
  • 3[3]SAKAI Y. Humidity sensor using cross linked poly(chloremethly styrene)[J]. Sensors and Actuators B, 2000, 66: 135.
  • 4[4]WANG Jing. Humidity sensor of composite material of nanoBaTiO3 and polymer RMX[J]. J Mater Sci Lett, 1999, 18:1603~1 065.
  • 5[5]WANG Jing. Improvement of nanocrystal BaTiO3 humidity sensing properties[J]. Sensors and Actuators B, 2000, 66: 159~160.
;
使用帮助 返回顶部