Active Micelle Pumping Channel Triggers Nonequilibrium Surface Excess Aggregation

作者全名："Xue, Jie; Li, Yuzhou; Jiang, Min; Wu, Jiaye; Zhou, Huang; Zhang, Nannan; Yang, Sheng; Tao, Changyuan; Zhang, Wei; Fan, Xing"

作者地址："[Xue, Jie; Jiang, Min; Wu, Jiaye; Zhang, Nannan; Tao, Changyuan; Fan, Xing] Univ Chongqing, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China; [Li, Yuzhou; Yang, Sheng] Chongqing Med Univ, Stomatol Hosp, Chongqing 401147, Peoples R China; [Zhou, Huang] North Sichuan Med Coll, Sch Pharm, Dept Chem, Nanchong 637100, Peoples R China; [Zhang, Wei] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China"

通信作者："Fan, X (通讯作者)，Univ Chongqing, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China."

来源：LANGMUIR

ESI学科分类：CHEMISTRY

WOS号：WOS:001048103400001

JCR分区：Q2

影响因子：3.7

年份：2023

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期号：　

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文献类型：Article; Early Access

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摘要："Adsorbate transport during the electrochemical processmostly followsthe electric-field direction or the high-to-low direction along theconcentration gradient and thus often limits the reactant concentrationat the adsorption site and requires specific mechanical or chemicalbonds of adsorbates to trigger local excess aggregation for advancedframework structure assembly. Herein, we have discovered an activepumping channel during electrochemical adsorption of a manganese colloid,which follows a low-to-high direction inverse concentration gradient.It triggers surface excess micelle aggregation with even over 16-foldshigher concentration than that in bulk owing to hydrogen-bonding differenceof the micelle surface between in bulk and at the water surface. Micellesin the channel exhibit unique polymerization behaviors by directlypolymerizing monomer micelles to form highly catalytic MnO2 of dendritic frameworks, which can serve as a scalable thin-layeraqueous-phase reactor. It increases the understanding of the interface-dependentdynamic nature of micelle or more adsorbates and inspires transformativesynthesizing approaches for advanced oxide materials."

基金机构："National Natural Science Foundation of China [22178035, 21905034]; Chongqing Talents Program [CQYC201905041, cstc2021ycjh-bgzxm0335]"

基金资助正文：We thank the National Natural Science Foundation of China (grant nos 22178035 and 21905034) and the Chongqing Talents Program (grant nos CQYC201905041 and cstc2021ycjh-bgzxm0335) for financial support.