期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 122, 期 42, 页码 24025-24036出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.8b04035
关键词
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资金
- Croatian Science Foundation [IP-2014-09-6972]
- Czech Science Foundation [17-10734S]
In this complementary experimental and theoretical study, we employ surface and electrokinetic potential measurements and equilibrium molecular dynamics (MD) techniques to study the electrical interfacial layer between aqueous solutions of electrolytes and an oxide solid surface. More specifically, we investigate the behavior of a prototypical model system consisting of the (0001) quartz surface in contact with aqueous solutions of alkali metal salts under different conditions. The inner surface potential and electrokinetic zeta-potential were measured by means of single crystal electrodes and via streaming current measurements, respectively. Calculated zeta-potentials allowed us to benchmark MD simulations against experiments, thereby, on the one hand, verifying the validity of our strategy and, on the other hand, enabling a detailed molecular picture of the investigated phenomena and elucidating the role of both water and ions in the formation of the multilayered quartz/aqueous electrolyte interface.
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