In‐situ interfacial polymerization endows surface enrichment of  COOH groups on anion exchange membranes for efficient Cl − / SO 4 2 − separation

2021 ◽  
Author(s):  
Noor Ul Afsar ◽  
Xingya Li ◽  
Yanran Zhu ◽  
Zijuan Ge ◽  
Yue Zhou ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Interfacial Polymerization ◽  
Anion Exchange Membranes ◽  
Surface Enrichment

In situ construction of interconnected ion transfer channels in anion-exchange membranes for fuel cell application

2017 ◽  
Vol 5 (8) ◽  
pp. 4003-4010 ◽  
Author(s):  
Jiangju Si ◽  
Haining Wang ◽  
Shanfu Lu ◽  
Xin Xu ◽  
Sikan Peng ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Ion Transfer ◽  
Trade Off ◽  
Fuel Cell Application ◽  
Transfer Channels

By modulating the amphiphilic architectures, 3D well-connected nano-channels are constructed and a trade-off between conductivity and stability in AEMs is achieved.

Constructing efficient ion nanochannels in alkaline anion exchange membranes by the in situ assembly of a poly(ionic liquid) in metal–organic frameworks

2016 ◽  
Vol 4 (6) ◽  
pp. 2340-2348 ◽  
Author(s):  
Zhen Li ◽  
Wenyu Wang ◽  
Yijing Chen ◽  
Chuanye Xiong ◽  
Guangwei He ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Anion Exchange ◽  
Metal Organic Frameworks ◽  
Anion Exchange Membranes ◽  
Metal Organic ◽  
Poly Ionic Liquid ◽  
Interconnected Pores

Construction of ion nanochannels by entrapping an in situ assembled ion-conductive poly(ionic liquid) in the highly ordered interconnected pores of MOFs.

A sustainable and efficient process for the preparation of polyethylene–polystyrene interpolymer based anion exchange membranes by in situ chloromethylation for electrodialytic applications

2017 ◽  
Vol 1 (3) ◽  
pp. 583-592 ◽  
Author(s):  
Vaibhavee Bhadja ◽  
Souradeep Chakraborty ◽  
Sandip Pal ◽  
Rakhi Mondal ◽  
B. S. Makwana ◽  
...  
Keyword(s):  
Present Article ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Efficient Process ◽  
Stable Anion

The present article describes the preparation of efficient and stable anion exchange membranes (AEMs) from the inter-polymer of polyethylene and polystyrene-co-polydivinylbenzene.

scholarly journals Systematic Characterization of Degraded Anion Exchange Membranes Retrieved from Vanadium Redox Flow Battery Field Tests

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 469
Author(s):  
Elke Herrmann ◽  
Nico Dingenouts ◽  
Christina Roth ◽  
Frieder Scheiba ◽  
Helmut Ehrenberg
Keyword(s):  
Ion Exchange ◽  
Anion Exchange ◽  
Field Tests ◽  
Exchange Capacity ◽  
Vanadium Redox Flow Battery ◽  
Ex Situ ◽  
Anion Exchange Membranes ◽  
Ion Exchange Capacity ◽  
Swelling Power

Commercially available anion exchange membranes were retrieved from VRFB field tests and their degradation due to the various operation conditions is analyzed by in-situ and ex-situ measurements. Ion exchange capacity, permeability and swelling power are used as direct criteria for irreversible changes. Small-angle X-ray scattering (SAXS) and Differential scanning calorimetry (DSC) analyses are used as fingerprint methods and provide information about the morphology and change of the structural properties. A decrease in crystallinity can be detected due to membrane degradation, and, in addition, an indication of reduced polymer chain length is found. While the proton diffusion either increase or decline significantly, the ion exchange capacity and swelling power both are reduced. The observed extent of changes was in good agreement with in-situ measurements in a test cell, where the coulombic and voltage efficiencies are reduced compared to a pristine reference material due to the degradation process.

Preparation of composite anion exchange membranes based on in‐situ copolymerization of N‐vinyl formamide and divinylbenzene in porous PTFE

2020 ◽  
Vol 138 (8) ◽  
pp. 49872
Author(s):  
Wanjie Luo ◽  
Lulu Wang ◽  
Ruijiang Feng ◽  
Chongfeng Zhao ◽  
Jilin Wang ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
In Situ Copolymerization

Polymeric materials as anion-exchange membranes for alkaline fuel cells

2011 ◽  
Vol 36 (11) ◽  
pp. 1521-1557 ◽  
Author(s):  
Guillaume Couture ◽  
Ali Alaaeddine ◽  
Frédéric Boschet ◽  
Bruno Ameduri
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Polymeric Materials ◽  
Anion Exchange Membranes ◽  
Alkaline Fuel Cells
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