How does a cation exchange membrane work?

How does a cation exchange membrane work?

Basically, cation exchange membranes perform as a separator and solid electrolyte in a variety of electrochemical cells that require the membrane to selectively transport cations across the cell junction. The polymer is chemically resistant and durable.

What is cation-exchange resin used for?

Cation-exchange resins are used to treat hyperkalaemia by accelerating potassium loss through the gut, especially in the context of poor urine output or before dialysis (the most effective means of treating hyperkalaemia).

What is cation selective membrane?

Cation-selective membranes are polyelectrolytes with the negatively charged matter, which rejects negatively charged ions and allows positively charged ions to flow through. Cation-selective membranes consist of sulfonated polystyrene, while anion-selective membranes consist of polystyrene with quaternary ammonia.

What is bipolar membrane electrodialysis?

Electrodialysis with bipolar membranes (EDBM) is a kind of technology that integrates solvent and salt dissociation. It can realize salt conversion without second salt pollution or provide H+ and OH-/alkoxide ions in situ without salt introduction. Thus, it inherently possesses economical and environmental benefits.

How do you activate cation resin?

The resin can be recharged by washing it with a solution containing a high concentration of sodium ions (e.g. it has large amounts of common salt (NaCl) dissolved in it). The calcium and magnesium ions migrate from the resin, being replaced by sodium ions from the solution until a new equilibrium is reached.

What principle is used in electrodialysis?

1. What principle is used in electrodialysis? Explanation: An electric field and ion selective membranes is used for separating an electrolyte feed in an dilute and concentrated desalted water. 2.

What is a high performance fuel cell membrane?

The high performance membranes are the heart of a protonexchange membrane (PEM) fuel cell stack. FUMATECH produces and develops polyelectrolytes (fumion® ionomers), proton conductive membranes (fumapem® membranes) andseparation membranes (fumasep® membranes) based on proprietary technology and designed for high precision mass manufacturing.

What is fumatech BWT GmbH?

The name FUMATECH BWT GmbH stands for “Functional Membranes and Plant Technology”. The company, situated in Bietigheim-Bissingen (Baden-Württemberg), is engaged in membrane manufacture and plant construction in the field of fuel cell and membrane technology for the treatment of water and process solutions.

What are the characteristics of fumapem fuel cell membranes?

All fumapem fuel cell’s membranes comply well with most common membrane-electrode-assembly techniques, such as hot pressing of membrane with GDE or transferring the electrode by decal method onto membrane’s surface or direct coating of membrane by catalytic ink. Selected properties of PEMFC membranes are summarized in the table below

What are the applications of PFSA fumapem membranes?

Some naval and aerospace applications are utilizing the PFSA fumapem membranes in thickness 80 – 120 µm since high reliability is required. The system runs on pure Hydrogen and Oxygen and the fuel cell unit is operated at increased pressure on cathode side.