物理化学学报 >> 1993, Vol. 9 >> Issue (04): 553-555.doi: 10.3866/PKU.WHXB19930424

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α-Fe2O3纳米微粒/硬脂酸交替L-B膜的结构表征

杨钧; 彭笑刚; 张岩; 李铁津   

  1. 吉林大学原子与分子物理研究所，化学系，长春 130023
  • 收稿日期:1992-03-20 修回日期:1992-06-13 发布日期:1993-08-15
  • 通讯作者: 杨钧

Structure Study on Nanoparticulate α-Fe2O3 Stearate Alternating Langmuir-Blodgett Films Using Ftir Spectra

Yang Jun; Peng Xiao-Gang; Zhang Yan; Li Tie-Jin   

  1. Institute of Atomic and Molecular Physics, Department of Chemistry, Jilin University, Changchun 130023
  • Received:1992-03-20 Revised:1992-06-13 Published:1993-08-15
  • Contact: Yang Jun

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关键词: 纳米微粒, α-Fe2O3, LB膜

Abstract: We reported in this paper FTIR linear diehroic spectroscopy and anisotropic properties of the nanoparticulate α-Fe_2O_3-stearate alternating Langmuir-Blodgett films (Fe_2O_3-St LB films) a new inorganic-organic quantum superlattice system. A new method fitted to inorganic-organic alternating films is used to study the molecular orientation and discuss the order arrangement of the nanopartieles in the films. The the results show that a configuration of stearate ions bound to the surface of the nano-particles: COO~- group are spherically bound to the surface of the nanoparticles; the hydrocarbon chains are almost perpendicular (31°±5°) to the substrate (7 nm-Fe_2O_3-St LB films). The orientation of hydrocarbon chains and CH_2 scissors vibration show the existence of trans-zigzag planar structure for C—C broken bone of the hy7drocarbon chains, which is related to high-order structure of the alternate films.

Key words: Nano-meter particle, α-Fe2O3, LB film