文献类型：期刊文献

英文题名：Nanomixing Effects in Glycerol/Dodecanol Pickering Emulsions for Interfacial Catalysis

作者：Zhao, Guolin[1,2,4];Li, Yao[1,2,4];Hong, Bing[4];Han, Xia[3];Zhao, Shuangliang[1,2];Pera-Titus, Marc[4];Liu, Honglai[3]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[4]CNRS Solvay, UMI 3464, Ecoefficient Prod & Proc Lab E2P2L, Shanghai 201108, Peoples R China

年份：2018

卷号：34

期号：50

起止页码：15587

外文期刊名：LANGMUIR

收录：;EI(收录号：20185106281065);WOS:【SCI-EXPANDED(收录号:WOS:000454183500053)】；

基金：This work was supported by the National Natural Science Foundation of China (Nos. 91534103, U1707602, and 21878078) and the 111 Project of China (No. B08021). S.Z. acknowledges the support of Fok Ying Tong Education Foundation (151069). CNRS and Solvay are also acknowledged for funding.

语种：英文

外文关键词：Glycerol - Ostwald ripening - Emulsification - Dissipative particle dynamics

摘要：Pickering emulsions offer a promising platform for conducting interfacial reactions between immiscible reagents. Despite the significant progress in the engineering of amphiphilic catalysts for such reactions, the mechanism behind their enhanced activity is still poorly understood. Herein, using the glycerol/dodecanol system as a case study, we conducted a combined meso- and microscale study of Pickering emulsions stabilized by amphiphilic silica nanoparticles bearing acid centers by marrying dissipative particle dynamics simulations with emulsification experiments. The optimal surface properties of the silica particles in terms of length and density of alkyl chains were identified, matching the experimental results. The local distribution of glycerol and dodecanol near the acid centers was ascertained, unraveling potential reactivity zones near the catalytic acid centers due to an enhanced nanomixing between glycerol and dodecanol.