Electroosmotic flow in nanoporous membranes in the region of electric double layer overlap

被引：13

作者：

Leese, Hannah ^{[1
]}

Mattia, Davide ^{[1
]}

机构：

[1] Univ Bath, Dept Chem Engn, Bath BA1 7AY, Avon, England

来源：

MICROFLUIDICS AND NANOFLUIDICS | 2014年 / 16卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

Electroosmosis; Electric double layer; Electroosmotic mobility; Concentration polarization; Borate buffer; ANODIC ALUMINA MEMBRANES; CONCENTRATION POLARIZATION; PUMP; PROPAGATION; SELECTIVITY; FABRICATION; TRANSPORT; POROSITY; DEVICES;

D O I：

10.1007/s10404-013-1255-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study investigates electroosmotic flow (EOF) with sodium tetraborate buffer in nanoporous anodized alumina membranes. Membranes with pore diameters ranging from 8 to 100 nm have been fabricated with narrow pore size distributions to systematically investigate the effect of pore diameter on the electroosmosis (EO) pumping down to the electric double layer overlap region. EOF was observed in membranes with pore diameters in and below this region, along with evidence of concentration polarization (CP), which resulted in a significant reduction in flux. The initial flux, though, could be fully recovered by temporarily reversing the flow and dislodging the accumulated ion layer from the feed side of the membrane. Stable pumping for up to 2 h was obtained before any flux reduction caused by CP was observed.

引用

页码：711 / 719

页数：9

共 50 条

[41] Time-resolved pressure-induced electric potential in nanoporous membranes: Measurement and mechanistic interpretation [J].

Apel, Pavel ;

Koter, Stanislaw ;

Yaroshchuk, Andriy .

JOURNAL OF MEMBRANE SCIENCE, 2022, 653

[42] Effect of charge density distribution of polyelectrolyte layer on electroosmotic flow and ion selectivity in a conical soft nanochannel [J].

Seifollahi, Zahra ;

Ashrafizadeh, Seyed Nezameddin .

CHEMICAL ENGINEERING SCIENCE, 2022, 261

[43] Beyond the single-layer limit for desalination based on conical channels of multilayer nanoporous graphene membranes [J].

Liu, Deren ;

Wang, Jing ;

Gao, Haiqi ;

Liu, Yuzhen ;

Lu, Ruifeng .

JOURNAL OF MEMBRANE SCIENCE, 2024, 695

[44] Electronic structure related electric-double-layer effects on heterogeneous ET kinetics on graphene electrode [J].

Liu, Yuwen ;

Chen, Shengli .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2015, 753 :3-8

[45] Joule heating in nanofluidic membranes: Influence of soft surface layer charge distribution and implications for ion selectivity, ionic current rectification and electroosmotic flow [J].

Shahhoseini, Parmida ;

Khatibi, Mahdi ;

Ashrafizadeh, Seyed Nezameddin ;

Duval, Jerome F. L. .

ELECTROCHIMICA ACTA, 2025, 536

[46] Two-layer nanofluid flow and heat transfer in a horizontal microchannel with electric double layer effects and magnetic field [J].

Zhao, Qingkai ;

Xu, Hang ;

Tao, Longbin .

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2021, 31 (07) :2347-2372

[47] Direct measurement of electric double layer in a nanochannel by electrical impedance spectroscopy [J].

Hatsuki, Ryuji ;

Yujiro, Fuchigami ;

Yamamoto, Takatoki .

MICROFLUIDICS AND NANOFLUIDICS, 2013, 14 (06) :983-988

[48] Interfacial transport theory for electrochemical phenomena with application to electric double layer [J].

Boyd, JG ;

Ambati, M .

SMART STRUCTURES AND MATERIALS 2003: ELECTROACTIVE POLYMER ACTUATORS AND DEVICES (EAPAD), 2003, 5051 :112-124

[49] Dynamics of ion transport and electric double layer in single conical nanopores [J].

Wang, Dengchao ;

Wang, Gangli .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2016, 779 :39-46

[50] Physical interpretation of cyclic voltammetry for measuring electric double layer capacitances [J].

Wang, Hainan ;

Pilon, Laurent .

ELECTROCHIMICA ACTA, 2012, 64 :130-139

← 1 2 3 4 5 →