Si-OH、SiO2存在于硅及硅复合材料的表面,对硅及其复合材料的性能具有很大的影响。例如Si-OH存在于多孔硅的表面,对多孔硅的发光性能、多孔硅表面吸附爆炸等具有重要的意义;在硅器件中,硅片表面被氧化形成SiO2影响硅片表面薄膜的沉积,进而影响器件的性能。由于物质的微观结构决定了其各种物理化学性质,因此对硅及硅复合材...
FTIR absorption spectrometryOH-F substitutionamphiboleorder-disorderThe results of an infrared investigation are presented for the OH-stretching region in synthetic (OH,F) substituted Na- and K-richterites. All the synthesized amphiboles exhibit a "tremolite-type' ba...
实验光谱学和理论计算都发现,“重原子”能隔离分子中的某些振动能景,如SiH_4中Si—H振动泛频的“局域模”.Roger 等在研究F 原子与M(CH_2CH=CH_2)_4(M=Sn,Ge)的反应中,发现了Sn,Ge 对过剩能量转移到其它部分有强烈的阻碍作用(在中间态的寿命时间内).最近,在研究O(~1D)+M(CH_3)_4生成OH(v)反应...
矗蠢多享海毒舒i.OH、sio:结构的理论研究周明秀指导教师.擅l一盎.职称教授一摘要硅及多孔硅表面Si—OH、Si02结构的理论研究凝聚态物理专业研究生周明秀摘指导教师杨春要Si—OH、Si02存在于硅及硅复合材料的表面,对硅及其复合材料的性能具有很大的影响。例如Si—OH存在于多孔硅的表面,对多孔硅的发光性能、多孔...
Nyfeler, D., Hoffmann, C., Armbruster, T., Kunz, M., and Libowitzky, E. (1997) Or- thorhombic Jahn-Teller distortion and Si-OH in mozartite, CaMn3+O[SiO3OH]: A single-crystal X-ray, FTIR, and structure modeling study. American Min- eralogist, 82, 841-848....
Nyfeler, D., Hoffmann, C., Armbruster, T., Kunz, M., and Libowitzky, E. (1997) Orthorhombic Jahn-Teller distortion and Si-OH in mozartite, CaMn3ϩO[SiO3OH]: a single-crystal X-ray, FTIR, and structure mod- eling study. American Mineralogist, 82, 841-848....
The incorporation of hydrogen into wadsleyite (β-Mg2SiO4) was investigated using polarized FTIR spectroscopy and X-ray diffraction on oriented single crystals. The experiments were carried out with a new suite of samples containing between ~100 and ~10 000 ppm H2O by weight (wt ppm), ...
The incorporation of hydrogen into wadsleyite (beta-Mg2SiO4) was investigated using polarized FTIR spectroscopy and X-ray diffraction on oriented single crystals. The experiments were carried out with anew suite of samples containing between similar to100 and similar to10000 ppm H2O by weight (wt ...
Kung, "A Systematic Study of OH in Hydrous Wadsleyite from Polarized FTIR Spectroscopy and Single Crystal X Ray Diffraction: Oxygen Sites for Hydrogen Storage in Earth's Interior," Am. Mineral. 90 (1), 67-70 (2005).Jacobsen, S. D.; Demouchy, S.; Frost, D. J.; Ballaran, T. B....
The X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive analysis spectroscopy of X-rays (EDX), and Fourier-transform infrared spectroscopy (FTIR) have been carried out. Also, UV–Vis–NIR spectroscopy has been used to test the optical interpretation of the as-prepared...