A zeolite ion exchange membrane for redox flow batteries

2014 ◽  
Vol 50 (19) ◽  
pp. 2416 ◽  
Author(s):  
Zhi Xu ◽  
Ioannis Michos ◽  
Xuerui Wang ◽  
Ruidong Yang ◽  
Xuehong Gu ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Exchange Membrane

A novel amphoteric ion-exchange membrane prepared by the pore-filling technique for vanadium redox flow batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 63023-63029 ◽  
Author(s):  
M. S. Lee ◽  
H. G. Kang ◽  
J. D. Jeon ◽  
Y. W. Choi ◽  
Y. G. Yoon
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Pore Filling ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox

A novel amphoteric ion-exchange membrane (AIEM) was prepared through the pore-filling technique, for vanadium redox flow battery (VRBs) applications.

scholarly journals Preparation and properties of amphoteric ion exchange membrane for all vanadium redox flow batteries

2019 ◽  
Vol 14 ◽  
pp. 102373 ◽  
Author(s):  
Jianjun Zhang ◽  
Xiaohua Chen ◽  
Rui Long ◽  
Jianlong Si ◽  
Chun Liu ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox

A multiple ion-exchange membrane design for redox flow batteries

2014 ◽  
Vol 7 (9) ◽  
pp. 2986-2998 ◽  
Author(s):  
Shuang Gu ◽  
Ke Gong ◽  
Emily Z. Yan ◽  
Yushan Yan
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Cell Design ◽  
Ion Exchange Membranes ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Battery Cell ◽  
Redox Flow Batteries ◽  
Membrane Design ◽  
Exchange Membrane

A redox-flow-battery cell design with multiple ion-exchange membranes is provided to enable combinations of any redox pairs and supporting electrolytes.

Hierarchical structural designs of ion exchange membranes for flow batteries

2019 ◽  
Vol 7 (10) ◽  
pp. 5794-5802 ◽  
Author(s):  
Xiujun Yue ◽  
Qian He ◽  
Hee-Dae Lim ◽  
Ping Liu
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Membrane ◽  
Ion Exchange Membranes ◽  
Trade Off ◽  
Flow Batteries ◽  
Exchange Membrane

A hierarchically structured composite ion exchange membrane is developed to solve the trade-off between conductivity and selectivity.

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 Vanadium Redox Flow Batteries: A Review Oriented to Fluid-Dynamic Optimization

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 176
Author(s):  
Iñigo Aramendia ◽  
Unai Fernandez-Gamiz ◽  
Adrian Martinez-San-Vicente ◽  
Ekaitz Zulueta ◽  
Jose Manuel Lopez-Guede
Keyword(s):  
Large Scale ◽  
Numerical Models ◽  
Fluid Dynamic ◽  
Renewable Energy Sources ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Batteries ◽  
Design Flexibility ◽  
Flow Batteries ◽  
Exchange Membrane ◽  
Vanadium Redox

Large-scale energy storage systems (ESS) are nowadays growing in popularity due to the increase in the energy production by renewable energy sources, which in general have a random intermittent nature. Currently, several redox flow batteries have been presented as an alternative of the classical ESS; the scalability, design flexibility and long life cycle of the vanadium redox flow battery (VRFB) have made it to stand out. In a VRFB cell, which consists of two electrodes and an ion exchange membrane, the electrolyte flows through the electrodes where the electrochemical reactions take place. Computational Fluid Dynamics (CFD) simulations are a very powerful tool to develop feasible numerical models to enhance the performance and lifetime of VRFBs. This review aims to present and discuss the numerical models developed in this field and, particularly, to analyze different types of flow fields and patterns that can be found in the literature. The numerical studies presented in this review are a helpful tool to evaluate several key parameters important to optimize the energy systems based on redox flow technologies.

scholarly journals Transparent Ion-Exchange Membrane Exhibiting Intense Emission under a Specific pH Condition Based on Polypyridyl Ruthenium(II) Complex with Two Imidazophenanthroline Groups

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 400
Author(s):  
Hajime Kamebuchi ◽  
Satoshi Tamaki ◽  
Atsushi Okazawa ◽  
Norimichi Kojima
Keyword(s):  
Ion Exchange ◽  
Emission Intensity ◽  
Density Functional ◽  
Emission Spectra ◽  
Density Functional Theory Calculations ◽  
Ion Exchange Membrane ◽  
Quantum Yields ◽  
Relative Emission Intensity ◽  
Nafion Film ◽  
Exchange Membrane

The development and the photophysical behavior of a transparent ion-exchange membrane based on a pH-sensitive polypyridyl ruthenium(II) complex, [(bpy)2RuII(H2bpib)RuII(bpy)2](ClO4)4 (bpy = 2,2′-bipyridine, H2bpib = 1,4-bis([1,10]phenanthroline[5,6-d]-imidazol-2-yl)benzene), are experimentally and theoretically reported. The emission spectra of [(bpy)2RuII(H2bpib)RuII(bpy)2]@Nafion film were observed between pH 2 and pH 11 and showed the highest relative emission intensity at pH 5 (λmaxem = 594.4 nm). The relative emission intensity of the film significantly decreased down to 75% at pH 2 and 11 compared to that of pH 5. The quantum yields (Φ) and lifetimes (τ) showed similar correlations with respect to pH, Φ = 0.13 and τ = 1237 ns at pH 5, and Φ = 0.087 and τ = 1014 ns and Φ = 0.069 and τ = 954 ns at pH 2 and pH 11, respectively. These photophysical data are overall considerably superior to those of the solution, with the radiative- (kr) and non-radiative rate constants (knr) at pH 5 estimated to be kr = 1.06 × 105 s−1 and knr = 7.03 × 105 s−1. Density functional theory calculations suggested the contribution of ligand-to-ligand- and intraligand charge transfer to the imidazolium moiety in Ru-H3bpib species, implying that the positive charge on the H3bpib ligand works as a quencher. The Ru-Hbpib species seems to enhance non-radiative deactivation by reducing the energy of the upper-lying metal-centered excited state. These would be responsible for the pH-dependent “off-on-off” emission behavior.

scholarly journals Fabrication of a lead ion selective membrane based on a polycarbazole Sn(iv) arsenotungstate nanocomposite and its ion exchange membrane (IEM) kinetic studies

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 4210-4220
Author(s):  
Mohd. Zeeshan ◽  
Rais Ahmad ◽  
Asif Ali Khan ◽  
Aftab Aslam Parwaz Khan ◽  
Guillermo C. Bazan ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Polyvinyl Chloride ◽  
Cation Exchanger ◽  
Kinetic Studies ◽  
Ion Exchange Membrane ◽  
Lead Ion ◽  
Solution Technique ◽  
Casting Solution ◽  
Selective Membrane ◽  
Exchange Membrane

A polycarbazole-Sn(iv) arsenotungstate (Pcz-SnAT) nanocomposite cation exchanger membrane (CEM) was prepared via the casting solution technique utilizing polycarbazole-Sn(iv) arsenotungstate and PVC (polyvinyl chloride) as a binder.

Synthesis of ion exchange membrane by radiation grafting of acrylic acid onto polyethylene

1981 ◽  
Vol 18 (5-6) ◽  
pp. 899-905 ◽  
Author(s):  
I. Ishigaki ◽  
T. Sugo ◽  
K. Senoo ◽  
T. Takayama ◽  
S. Machi ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Acrylic Acid ◽  
Ion Exchange Membrane ◽  
Radiation Grafting ◽  
Exchange Membrane
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