Surface properties of rutile and its modified form - Part 1. Surface characteristics studied by means of inverse gas chromatography
Surface properties of rutile and its modified form - Part 1. Surface characteristics studied by means of inverse gas chromatography
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金红石及其改性形式的表面特性 - 第 1 部分：通过反气相色谱法研究表面特性
DOI：
10.1163/156856197x00417
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发表时间：
1997
影响因子：
2.3
通讯作者：
A. Voelkel
中科院分区：
文献类型：
--
作者：
V. Bogillo;A. Voelkel
用反相色谱方法测定了正构烷烃(C6-C10)和8种不同给体-受体性质的极性化合物在经无定形Al_2O_3(4%w/w)和SiO_2(2%w/w)连续包覆的二氧化钛(金红石型)和二氧化钛(2%w/w)表面的摩尔吸附自由能、吸附热焓和吸附熵。结果表明，金红石表面的改性导致表面自由能的色散分量增加，固体的给体和受主特性及其相对酸度增加。
Molar adsorption free energies, adsorption enthalpies, and entropies of n-alkanes (C6-C10) and eight polar compounds possessing different donor-acceptor properties on the surface of titanium dioxide (rutile form) and TiO2, modified by sequential coating with amorphous Al2O3 (4% w/w) and SiO2 (2% w/w) were measured by inverse gas chromatography. It has been established that modification of the rutile surface leads to an increase of the dispersive component of the surface free energy as well as of the donor and acceptor characteristics of the solid and its relative acidity.