The Fluorite/Water Interfaces: Structure and Spectroscopy from First Principles Simulations
The Fluorite/Water Interfaces: Structure and Spectroscopy from First Principles Simulations
复制标题
萤石/水界面:第一原理模拟的结构和光谱
DOI:
10.1007/978-3-319-10810-0_13
复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
M Sulpizi
中科院分区:
文献类型:
--
作者:
R Khatib;M Sulpizi
Despite its relevance to industrial, environmental and medical application, the fluorite/water interface still lacks a microscopic/atomistic characterization. In this contribution we provide the first atomistic description of such interface usingfirst principlesmolecular dynamics simulations. Our models, which explore a wide range of pH, are able to provide a rational of the recent vibrational spectroscopy experiments. In particular we find that at neutral pH the water at the interface is disordered, in agreement with the experimental data, and explaining why no Vibrational Sum Frequency Generation (VSFG) signal is recorded. At high pH, OH groups which localize at the interface are responsible for the “free OH signal” recorded in the vibrational spectroscopy experiments. Finally we propose one possible model for the low pH condition where the F−vacancies induce a strong layering of the interfacial water.
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
中村賀美;竹内孝江
通讯作者:
竹内孝江
DOI:
--
发表时间:
1992
期刊:
Physical Review B (Condensed Matter)
影响因子:
--
作者:
Gonçalves;Bonadeo
通讯作者:
Bonadeo
影响因子:
2.9
作者:
Frigato, Tomaso;VandeVondele, Joost;Jungwirth, Pavel
通讯作者:
Jungwirth, Pavel