نتایج جستجو برای: anion exchange membrane

تعداد نتایج: 589151  

Journal: :Energy technology 2021

Herein, a unique anion-exchange membrane fuel cell (AEMFC) containing only affordable and abundant materials is presented: NiFe hydrogen oxidation reaction (HOR) nitrogen-doped carbon oxygen reduction (ORR) electrocatalysts. AEMFCs are an attractive alternative to proton-exchange cells. They can run under alkaline conditions, allowing the use of platinum group metal (PGM)-free Yet, same conditi...

Journal: :The Journal of General Physiology 1977
P A Knauf G F Fuhrmann S Rothstein A Rothstein

The conductive (net) anion permeability of human red blood cells was determined from net KCl or K2SO4 effluxes into low K+ media at high valinomycin concentrations, conditions under which the salt efflux is limited primarily by the net anion permeability. Disulfonic stilbenes, inhibitors of anion exchange, also inhibited KCl or K2SO4 efflux under these conditions, but were less effective at low...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2000
V M Rajendran J Black T A Ardito P Sangan S L Alper C Schweinfest M Kashgarian H J Binder

Two distinct Cl/anion exchange activities (Cl/HCO(3) and Cl/OH) identified in apical membranes of rat distal colon are distributed in cell type-specific patterns. Cl/HCO(3) exchange is expressed only in surface cells, whereas Cl/OH exchange is localized in surface and crypt cells. Dietary Na depletion substantially inhibits Cl/HCO(3) but not Cl/OH exchange. We determined whether anion exchange ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
hossein faghihian mohammad hadi mohammadi

nitrate is an anion of major importance particularly in biological areas. excessive amounts in water supplies indicate pollution from sewage or agricultural effluents. the effects of excessive quantities of nitrate in water are well known. in this research structural modification of natural clinoptilolite by isomorphic substitution was performed. isomorphously substituted zeolite was prepared u...

2001
Xu Tongwen Yang Weihua

Chemical cross-linking anion exchange series membranes were prepared from linear engineering plastics poly(2,6-dimethyl1,4-phenylene oxide) (PPO) by conducting the processes of bromination and amination at both benzyl and aryl positions. Compared with the traditional technologies, the membrane route described in this paper has cancelled the chloromethylation process and thus, given up the use o...

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