Water-solid interfaces probed by high-resolution atomic force microscopy

IF 8.2 1区 化学 Q1 CHEMISTRY, PHYSICAL
Jinbo Peng , Jing Guo , Runze Ma , Ying Jiang
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引用次数: 13

Abstract

Water-solid interfaces play important roles across a broad range of scientific and application fields. In the past decades, atomic force microscopy (AFM) has significantly deepened our understanding of water-solid interfaces at molecular scale. In this review, we describe the recent progresses on probing water-solid interfaces by noncontact AFM, highlighting the imaging of interfacial water with ultrahigh spatial resolution. In particular, the recent development of qPlus-based AFM with functionalized tips has made it possible to directly image the H-bonding skeleton of interfacial water under UHV environment. Based on high-order electrostatic forces, such a technique even enables submolecular-level imaging of weakly bonded water structures with negligible disturbance. In addition, the three-dimensional (3D) AFM using low-noise cantilever deflection sensors can achieve atomic resolution imaging at liquid/solid interfaces, which opens up the possibility of probing the hydration layer structures under realistic conditions. We then discuss the application of those AFM techniques to various interfacial water systems, including water clusters, ion hydrates, water chains, water monolayers/multilayers and bulk water/ice on different surfaces under UHV or ambient environments. Some important issues will be addressed, including the H-bonding topology, ice nucleation and growth, ion hydration and transport, dielectric properties of water, etc. In the end, we present an outlook on the directions of future AFM studies of water at interfaces and the challenges faced by this field, as well as the development of new AFM techniques.

高分辨率原子力显微镜探测的水-固界面
水-固界面在广泛的科学和应用领域中发挥着重要作用。在过去的几十年里,原子力显微镜(AFM)极大地加深了我们在分子尺度上对水-固界面的理解。本文综述了近年来非接触式原子力显微镜探测水-固界面的研究进展,重点介绍了超高空间分辨率的界面水成像技术。特别是最近基于qplus的带有功能化尖端的原子力显微镜的发展,使得在特高压环境下直接成像界面水的氢键骨架成为可能。基于高阶静电力,这种技术甚至可以在亚分子水平上对弱键水结构进行成像,而干扰可以忽略不计。此外,采用低噪声悬臂式偏转传感器的三维原子力显微镜(3D)可以在液/固界面上实现原子分辨率成像,这为在现实条件下探测水化层结构提供了可能。然后,我们讨论了这些AFM技术在各种界面水系统中的应用,包括在特高压或环境环境下不同表面上的水簇、离子水合物、水链、单层/多层水和散装水/冰。讨论了氢键拓扑结构、冰的成核与生长、离子的水化与输运、水的介电性质等重要问题。最后,展望了未来界面水原子力显微镜研究的方向和面临的挑战,以及新的原子力显微镜技术的发展。
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来源期刊
Surface Science Reports
Surface Science Reports 化学-物理:凝聚态物理
CiteScore
15.90
自引率
2.00%
发文量
9
审稿时长
178 days
期刊介绍: Surface Science Reports is a journal that specializes in invited review papers on experimental and theoretical studies in the physics, chemistry, and pioneering applications of surfaces, interfaces, and nanostructures. The topics covered in the journal aim to contribute to a better understanding of the fundamental phenomena that occur on surfaces and interfaces, as well as the application of this knowledge to the development of materials, processes, and devices. In this journal, the term "surfaces" encompasses all interfaces between solids, liquids, polymers, biomaterials, nanostructures, soft matter, gases, and vacuum. Additionally, the journal includes reviews of experimental techniques and methods used to characterize surfaces and surface processes, such as those based on the interactions of photons, electrons, and ions with surfaces.
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