Submolecular Insights into Interfacial Water by Hydrogen-Sensitive Scanning Probe Microscopy,Accounts of Chemical Research

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Submolecular Insights into Interfacial Water by Hydrogen-Sensitive Scanning Probe Microscopy
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2022-06-09 , DOI: 10.1021/acs.accounts.2c00111
Jing Guo ₁ , Ying Jiang _{2,

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Affiliation

Water–solid interfaces have attracted extensive attention because of their crucial roles in a wide range of chemical and physical processes, such as ice nucleation and growth, dissolution, corrosion, heterogeneous catalysis, and electrochemistry. To understand these processes, enormous efforts have been made to obtain a molecular-level understanding of the structure and dynamics of water on various solid surfaces. By the use of scanning probe microscopy (SPM), many remarkable structures of H-bonding networks have been directly visualized, significantly advancing our understanding of the delicate competition between water–water and water–solid interactions. Moreover, the detailed dynamics of water molecules, such as diffusion, clustering, dissociation, and intermolecular and intramolecular proton transfer, have been investigated in a well-controlled manner by tip manipulation. However, resolving the submolecular structure of surface water has remained a great challenge for a long time because of the small size and light mass of protons. Discerning the position of hydrogen in water is not only crucial for the accurate determination of the structure of H-bonding networks but also indispensable in probing the proton transfer dynamics and the quantum nature of protons.

中文翻译：

通过氢敏感扫描探针显微镜对界面水的亚分子洞察

水-固界面因其在冰的成核和生长、溶解、腐蚀、多相催化和电化学等广泛的化学和物理过程中的关键作用而引起了广泛的关注。为了理解这些过程，人们付出了巨大的努力来获得对各种固体表面上水的结构和动力学的分子水平的理解。通过使用扫描探针显微镜（SPM），许多显着的氢键网络结构被直接可视化，显着提高了我们对水-水和水-固相互作用之间微妙竞争的理解。此外，水分子的详细动力学，如扩散、聚集、解离以及分子间和分子内质子转移，已经通过尖端操作以良好控制的方式进行了研究。然而，由于质子体积小、质量轻，长期以来，解析地表水的亚分子结构一直是一个巨大的挑战。辨别氢在水中的位置不仅对于准确确定氢键网络的结构至关重要，而且对于探索质子转移动力学和质子的量子性质也是必不可少的。

更新日期：2022-06-09

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