The Electric Double Layer in an Ionic Liquid Incorporated with Water Molecules: Atomic Force Microscopy Force Curve Study
The Electric Double Layer in an Ionic Liquid Incorporated with Water Molecules: Atomic Force Microscopy Force Curve Study
复制标题
与水分子结合的离子液体中的双电层：原子力显微镜力曲线研究
DOI：
10.1002/celc.201600177
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发表时间：
2016-12
期刊：
影响因子：
4
通讯作者：
Mao Bingwei
中科院分区：
文献类型：
--
作者：
Zhong Yunxin;Yan Jiawei;Li Miangang;Chen Li;Mao Bingwei
电化学技术和基于电位控制下的力曲线测量的原子力显微镜相结合，研究了少量水对 Au(111)/1-丁基-1-甲基吡咯烷鎓双(三氟甲基磺酰基)酰胺 (BMPTFSA) 界面双电层结构的影响。在 Au(111)/BMPTFSA 界面处观察到三到五层结构，包括两个带电层，电位比零电荷点更负。随着水浓度的增加，第一层和第二层的刚度值均降低，这表明更多的水分子吸附在Au(111)表面或与离子液体相互作用，从而减弱了阳离子、阴离子和电极表面之间的相互作用，降低了层状结构的稳定性。带电内层（该系统中的第一层和第二层）的厚度随着水浓度的增加而增加，而中性外层（该系统中接下来的一到三层）的厚度几乎保持不变。界面第一层的结构随着水浓度的变化而发生显着变化。
Electrochemical techniques and atomic force microscopy based force curve measurements under potential control are combined to investigate the effect of small amounts of water on the structure of the electric double layer of an Au(111)/1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) interface. Three to five layering structures, including two charged layers, are observed at the Au(111)/BMPTFSA interface at potentials more negative than the point of zero charge. With an increase in the water concentration, the stiffness values for both the first and second layers decrease, which demonstrates that more water molecules adsorb on the Au(111) surface or interact with the ionic liquid, and thus weaken the interactions between cations, anions, and the electrode surface and lower the stability of the layering structures. The thicknesses of the charged interior layers (the first and second layers in this system) increase with an increase in the water concentration and the thicknesses of neutral exterior layers (the next one to three layers in this system) remain almost unchanged. The structure of the first layer of the interface varies dramatically with the change in the water concentration.
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影响因子：
4.9
作者：
X. Zhang;Yun-Xin Zhong;Jiawei Yan;Yu-Zhuan Su;Meng Zhang;B. Mao
通讯作者：
X. Zhang;Yun-Xin Zhong;Jiawei Yan;Yu-Zhuan Su;Meng Zhang;B. Mao
影响因子：
6.6
作者：
M. Xu;D. Ivey;Zhong Xie;W. Qu;E. Dy
通讯作者：
M. Xu;D. Ivey;Zhong Xie;W. Qu;E. Dy
影响因子：
17.1
作者：
Feng, Guang;Jiang, Xikai;Kornyshev, Alexei A.
通讯作者：
Kornyshev, Alexei A.
影响因子：
--
作者：
Rui Wen;Björn Rahn;Olaf M. Magnussen
通讯作者：
Rui Wen;Björn Rahn;Olaf M. Magnussen
DOI：
10.1002/(sici)1097-4660(199704)68:4
发表时间：
1997-04
影响因子：
3.4
作者：
K. R. Seddon
通讯作者：
K. R. Seddon