Fluorination of the Hydroxylated α-Al2O3 (0001) and Its Implications for Water Adsorption: A Theoretical Study

Fluorination of the Hydroxylated α-Al2O3 (0001) and Its Implications for Water Adsorption: A Theoretical Study
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羟基α-Al2O3 (0001) 的氟化及其对水吸附的影响:理论研究

DOI:
10.1021/acs.jpcc.5b10975
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发表时间:
2016
影响因子:
3.7
通讯作者:
B. Paulus
B. Paulus
中科院分区:
化学3区
文献类型:
--
作者:
J. Wirth;J. Schacht;P. Saalfrank;B. Paulus

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用周期密度泛函理论计算方法研究了羟基α-Al_2O_3(0001)表面的氟化反应。在用氟原子取代表面羟基的假设反应的基础上,我们发现表面氟化是强烈的作用力,但受到动力学上的阻碍。与羟基化区域相比,氟化表面区域变得相当疏水,这表明氟化是调节氧化物表面性质(如亲水性)的潜在途径。
Fluorination of the hydroxylated α-Al2O3(0001) surface is studied using periodic density functional theory calculations. On the basis of a hypothetical reaction substituting surface hydroxyl groups with fluorine atoms, we find surface fluorination to be strongly exergonic but kinetically hindered. Fluorinated surface areas turn out to be rather hydrophobic as compared to hydroxylated areas, suggesting fluorination as a potential route for tuning oxide surface properties such as hydrophilicity.
DOI: 10.1021/jp502106t
发表时间: 2014
影响因子: 3.7
作者:
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通讯作者: R. K. Campen
DOI: 10.1063/1.3694102
发表时间: 2012-03
期刊: The Journal of chemical physics
影响因子: --
作者:
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通讯作者: Jie Quan;Botao Teng;X. Wen;Yue Zhao;Rui Liu;M. Luo
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DOI: --
发表时间: 2000
期刊:
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作者:
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