Skin supersoliditymatters the performance and functionality of water droplets  

作　　者：Chang Q.Sun Yong Zhou Hengxin Fang Biao Wang 

机构地区：[1]RISE and School of Materials Science&Engineering,Dongguan University of Technology,Dongguan,China [2]School of Physics&Sino-French Institute of Nuclear Engineering&Technology,Sun Yat-Sen University,Guangzhou,China [3]Guangdong Provincial Key Laboratory of Extreme Conditions,Dongguan,China

出　　处：《Droplet》2024年第4期1-9,共9页液滴（英文）

基　　金：Natural Science Foundation of Guangdong Province,Grant/Award Number:2024A1515011094;National Natural Science Foundation of China,Grant/Award Numbers:12304243,12150100。

摘　　要：Even more fascinating than its bulk parent,a water droplet possesses extraordinary catalytic and hydro-voltaic capability,elastic adaptivity,hydrophobicity,sensitivity,thermal stability,etc.,but the underlying mechanism is still elusive.We emphasize herewith that the H‒O bond follows the universal bond order‒length‒strength cor-relation and nonbonding electron polarization regulation and the hydrogen bond cooperativity and polarizability notion regulates the performance of the coupling hydrogen bond(O:H‒O).Computational and spectrometric evidence consistently shows that molecular undercoordination shortens the intramolecular H‒O bond by up to 10%while lengthening the intermolecular O:H nonbond by 20%cooperatively with an association of electron polarization,making the 0.3-nm thick droplet skin of a supersolid phase of self-electrification.The supersolid skin dictates the performance and functionality of the droplet in chemical,dielectric,electrical,mechanical,optical,and thermal properties as well as the transport dynamics of electrons and phonons.The amplification of these findings could deepen our insight into the undercoordi-nated aqueous systems,including bubbles and molecular clusters,and promote deep engineering of water and ice.

关 键 词：PERFORMANCE SOLID BONDING 

分 类 号：O64[理学—物理化学]