期刊
PHYSICAL REVIEW LETTERS
卷 120, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.264502
关键词
-
资金
- Dutch Ministry of Education, Culture and Science (OCW)
- Industrial Partnership Program of the Netherlands Organization for Scientific Research (NWO) through FOM Concept [FOM-15-0521]
- Exploratory Research (ExploRe) programme of BP plc
- European Union's Horizon 2020 programme under the Marie Sklodowska-Curie Grant [795377]
- Marie Curie Actions (MSCA) [795377] Funding Source: Marie Curie Actions (MSCA)
We theoretically study the electrokinetic problem of a pressure-induced liquid flow through a narrow long channel with charged walls, going beyond the classical Helmholtz-Schmolukowski picture by considering the surprisingly strong combined effect of (i) Stern-layer conductance and (ii) dynamic charge-regulating rather than fixed surface charges. We find that the water flow induces, apart from the well-known streaming potential, also a strongly heterogeneous surface charge and zeta potential on chemically homogeneous channel walls. Moreover, we identify a novel steady state with a nontrivial 3D electric flux with 2D surface charges acting as sources and sinks. For a pulsed pressure drop our findings also provide a first-principles explanation for ill-understood experiments on the effect of flow on interfacial chemistry.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据