Tuning the Three-Phase Microenvironment Geometry Promotes Phase Formation
Tuning the Three-Phase Microenvironment Geometry Promotes Phase Formation
复制标题
调整三相微环境几何形状促进相形成
DOI:
10.1021/acs.jpcc.2c03973
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Dick, Jeffrey E.
中科院分区:
文献类型:
--
作者:
Colón-Quintana, Guillermo S.;Vannoy, Kathryn J.;Renault, Christophe;Voci, Silvia;Dick, Jeffrey E.
Nature builds multiphase environments to drive specific reactivity across boundaries. Multiphase systems present an opportunity to drive reactions that would otherwise not occur in bulk, continuous phases. Here, we demonstrate preferential nucleation near the three-phase boundary as a function of its geometry. A submicroliter water droplet deposited on an electrode immersed in a continuous 1,2-dichloroethane (DCE) phase is used to fabricate a three-phase junction (water|DCE|electrode). Adjusting the angle of the three-phase junction by changing the hydrophilicity of the electrode can lead to precipitation of ferrocenemethanol (FcMeOH) at the three-phase boundary only. Analysis by cyclic voltammetry coupled to numerical simulations provides insight into the physicochemical origin of the precipitation depending on the three-phase boundary angle. This finding offers a convenient means to control the local reactivity at three-phase boundaries.
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DOI:
--
发表时间:
2009
期刊:
影响因子:
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期刊:
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