scholarly journals Biomolecular Sensing by Modulated Ion Transport Through Ion Conducting Polymeric Nanopores

2019 ◽  
Author(s):  
Wolfgang Ensinger
Keyword(s):  
Ion Transport ◽  
Biomolecular Sensing ◽  
Ion Conducting

scholarly journals Structural, Electrical and Electrochemical Properties of Glycerolized Biopolymers Based on Chitosan (CS): Methylcellulose (MC) for Energy Storage Application

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1183
Author(s):  
Shujahadeen B. Aziz ◽  
Ahmad S. F. M. Asnawi ◽  
Mohd Fakhrul Zamani Kadir ◽  
Saad M. Alshehri ◽  
Tansir Ahamad ◽  
...  
Keyword(s):  
Energy Storage ◽  
Ion Transport ◽  
Ammonium Thiocyanate ◽  
Transference Number ◽  
Ionic Mobility ◽  
Transport Parameters ◽  
Ionic Transference Number ◽  
Energy Storage Application ◽  
Electrochemical Double Layer ◽  
Ion Conducting

In this work, a pair of biopolymer materials has been used to prepare high ion-conducting electrolytes for energy storage application (ESA). The chitosan:methylcellulose (CS:MC) blend was selected as a host for the ammonium thiocyanate NH4SCN dopant salt. Three different concentrations of glycerol was successfully incorporated as a plasticizer into the CS–MC–NH4SCN electrolyte system. The structural, electrical, and ion transport properties were investigated. The highest conductivity of 2.29 × 10−4 S cm−1 is recorded for the electrolyte incorporated 42 wt.% of plasticizer. The complexation and interaction of polymer electrolyte components are studied using the FTIR spectra. The deconvolution (DVN) of FTIR peaks as a sensitive method was used to calculate ion transport parameters. The percentage of free ions is found to influence the transport parameters of number density (n), ionic mobility (µ), and diffusion coefficient (D). All electrolytes in this work obey the non-Debye behavior. The highest conductivity electrolyte exhibits the dominancy of ions, where the ionic transference number, tion value of (0.976) is near to infinity with a voltage of breakdown of 2.11 V. The fabricated electrochemical double-layer capacitor (EDLC) achieves the highest specific capacitance, Cs of 98.08 F/g at 10 mV/s by using the cyclic voltammetry (CV) technique.

Bombardment Induced Ion Transport through Ion Conducting Glasses

2016 ◽  
Vol 6 ◽  
pp. 107-143 ◽  
Author(s):  
Karl Michael Weitzel
Keyword(s):  
Ion Transport ◽  
Diffusion Coefficients ◽  
Particle Density ◽  
Ion Beam ◽  
Ionic Conductivities ◽  
Metal Electrode ◽  
Theoretical Modelling ◽  
Concentration Profiles ◽  
Surface Particle ◽  
Ion Conducting

The recently developed bombardment induced ion transport (BIIT) technique is reviewed. BIIT is based on shining an energy-selected alkali ion beam at the surface of a sample of interest. Attachment of these ions leads to the build-up of a surface potential and a surface particle density. This in turn generates the corresponding gradients which induce ion transport towards a single metal electrode connected to the backside of the sample where it is detected as a neutralization current. Two different versions of BIIT are presented, i.) the native ion BIIT and ii.) the foreign ion BIIT. The former is demonstrated to provide access to absolute ionic conductivities and activation energies, the latter leads to the generation of electrodiffusion profiles. Theoretical modelling of these concentration profiles by means of the Nernst-Planck-Poisson theory allows to deduce the concentration dependence of diffusion coefficients.

scholarly journals Effect of Lithium-Ion Concentration on Morphology and Ion Transport in Single-Ion-Conducting Block Copolymer Electrolytes

2015 ◽  
Vol 48 (18) ◽  
pp. 6589-6595 ◽  
Author(s):  
Adriana A. Rojas ◽  
Sebnem Inceoglu ◽  
Nikolaus G. Mackay ◽  
Jacob L. Thelen ◽  
Didier Devaux ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Ion Transport ◽  
Lithium Ion ◽  
Ion Concentration ◽  
Block Copolymer Electrolytes ◽  
Ion Conducting

Study of ion transport and materials properties of K+-ion conducting solid polymer electrolyte (SPE): [(1-x) PEO: xCH3COOK]

Ionics ◽  
2016 ◽  
Vol 23 (10) ◽  
pp. 2823-2827
Author(s):  
Priyanka Kesharwani ◽  
Dinesh K. Sahu ◽  
Manju Sahu ◽  
Tripti bala Sahu ◽  
R. C. Agrawal
Keyword(s):  
Ion Transport ◽  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Solid Polymer ◽  
Materials Properties ◽  
Ion Conducting
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