Publication

Thermal gate, a new tool for ionic transport control inside nanochannels

Philippe Renaud, Arnaud Bertsch, Mojtaba Taghipoor
2015
Conference Papers

Abstract

Transport of ionic species solvated in electrolytes depends on temperature. This dependence is much stronger in nanofluidics than large scale since the surface charge also varies with temperature. In this work, we introduce a new tool for the modulation of ionic transport inside nanochannels based on the effect of temperature. This effect can be used in the gating of nanochannels with comparable effectiveness as other gating mechanisms.

Official source

https://infoscience.epfl.ch/entities/publication/ccc81efb-e043-4876-a8de-39abd54eba6f

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Philippe Renaud, Arnaud Bertsch, Mojtaba Taghipoor
2015
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ccc81efb-e043-4876-a8de-39abd54eba6f

About this result

Related concepts (23)

Electrolytic capacitor

An electrolytic capacitor is a polarized capacitor whose anode or positive plate is made of a metal that forms an insulating oxide layer through anodization. This oxide layer acts as the dielectric of the capacitor. A solid, liquid, or gel electrolyte covers the surface of this oxide layer, serving as the cathode or negative plate of the capacitor. Because of their very thin dielectric oxide layer and enlarged anode surface, electrolytic capacitors have a much higher capacitance-voltage (CV) product per unit volume than ceramic capacitors or film capacitors, and so can have large capacitance values.

Aluminum electrolytic capacitor

Aluminum electrolytic capacitors are polarized electrolytic capacitors whose anode electrode (+) is made of a pure aluminum foil with an etched surface. The aluminum forms a very thin insulating layer of aluminum oxide by anodization that acts as the dielectric of the capacitor. A non-solid electrolyte covers the rough surface of the oxide layer, serving in principle as the second electrode (cathode) (-) of the capacitor. A second aluminum foil called “cathode foil” contacts the electrolyte and serves as the electrical connection to the negative terminal of the capacitor.

Ion

An ion (ˈaɪ.ɒn,_-ən) is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convention. The net charge of an ion is not zero because its total number of electrons is unequal to its total number of protons. A cation is a positively charged ion with fewer electrons than protons while an anion is a negatively charged ion with more electrons than protons.

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Thermal gate, a new tool for ionic transport control inside nanochannels

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