scholarly journals Role of thickness and density on the ionic conductivity of fuel cell membrane prepared with supramolecular structure

2016 ◽  
Author(s):  
Sunit Hendrana ◽  
Sri Pudjiastuti ◽  
Elsy Rahimi Chaldun ◽  
Henry Widodo ◽  
Achmad Rochliadi ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Ionic Conductivity ◽  
Cell Membrane ◽  
Supramolecular Structure

Fabrication of Conducting Nanochannels Using Accelerator for Fuel Cell Membrane and Removal of Radionuclides: Role of Nanoparticles

2020 ◽  
Vol 12 (15) ◽  
pp. 17628-17640
Author(s):  
Om Prakash ◽  
Amol M. Mhatre ◽  
Rahul Tripathi ◽  
Ashok K. Pandey ◽  
Pravesh Kumar Yadav ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Cell Membrane

The role of (bio)surfactant sorption in promoting the bioavailability of nutrients localized at the solid-water interface

1999 ◽  
Vol 39 (7) ◽  
pp. 91-98 ◽  
Author(s):  
Ryan N. Jordan ◽  
Eric P. Nichols ◽  
Alfred B. Cunningham
Keyword(s):  
Mass Transfer ◽  
Cell Membrane ◽  
Substrate Concentration ◽  
Water Interface ◽  
Industrial Systems ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Surfactant Sorption

Bioavailability is herein defined as the accessibility of a substrate by a microorganism. Further, bioavailability is governed by (1) the substrate concentration that the cell membrane “sees,” (i.e., the “directly bioavailable” pool) as well as (2) the rate of mass transfer from potentially bioavailable (e.g., nonaqueous) phases to the directly bioavailable (e.g., aqueous) phase. Mechanisms by which sorbed (bio)surfactants influence these two processes are discussed. We propose the hypothesis that the sorption of (bio)surfactants at the solid-liquid interface is partially responsible for the increased bioavailability of surface-bound nutrients, and offer this as a basis for suggesting the development of engineered in-situ bioremediation technologies that take advantage of low (bio)surfactant concentrations. In addition, other industrial systems where bioavailability phenomena should be considered are addressed.

The role of ion exchange membrane in vanadium oxygen fuel cell

2021 ◽  
Vol 629 ◽  
pp. 119271
Author(s):  
Jiří Charvát ◽  
Petr Mazúr ◽  
Martin Paidar ◽  
Jaromír Pocedič ◽  
Jiří Vrána ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Exchange Membrane ◽  
Oxygen Fuel

scholarly journals Morphological effect of side chain on H3O+ transfer inside polymer electrolyte membranes across polymeric chain via molecular dynamics simulation

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
JinHyeok Cha
Keyword(s):  
Fuel Cell ◽  
Ionic Conductivity ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Dynamics Simulation ◽  
Polymeric Chain ◽  
Side Chains ◽  
Dynamic Simulations ◽  
Morphological Effect ◽  
Electrolyte Membrane

AbstractPerformance and durability of polymer electrolyte membrane are critical to fuel cell quality. As fuel cell vehicles become increasingly popular, membrane fundamentals must be understood in detail. Here, this study used molecular dynamic simulations to explore the morphological effects of perfluorosulfonic acid (PFSA)-based membranes on ionic conductivity. In particular, I developed an intuitive quantitative approach focusing principally on hydronium adsorbing to, and desorbing from, negatively charged sulfonate groups, while conventional ionic conductivity calculations featured the use of mean square displacements that included natural atomic vibrations. The results revealed that shorter side-chains caused more hydroniums to enter the conductive state, associated with higher ion conductivity. In addition, the hydronium path tracking showed that shorter side-chains allowed hydroniums to move among host groups, facilitating chain adsorption, in agreement with a mechanism suggested in earlier studies.

scholarly journals Ionic conductivity in oxide heterostructures: the role of interfaces

2010 ◽  
Vol 11 (5) ◽  
pp. 054503 ◽  
Author(s):  
Emiliana Fabbri ◽  
Daniele Pergolesi ◽  
Enrico Traversa
Keyword(s):  
Ionic Conductivity ◽  
Oxide Heterostructures

Ionic transport of alkali in borosilicate glass. Role of alkali nature on glass structure and on ionic conductivity at the glassy state

2015 ◽  
Vol 410 ◽  
pp. 74-81 ◽  
Author(s):  
Muriel Neyret ◽  
Marion Lenoir ◽  
Agnès Grandjean ◽  
Nicolas Massoni ◽  
Bruno Penelon ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Borosilicate Glass ◽  
Glassy State ◽  
Glass Structure ◽  
Ionic Transport
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