Gas Diffusion Electrode X-Ray Diffraction Electrochemical Cell

Gas Diffusion Electrode X-Ray Diffraction Electrochemical Cell

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This is a horizontally mounted, multi-purpose electrochemical cell for Gas Diffusion Electrode (GDE), designed to be used with X-Ray Diffractometry. The cell consists of two individual compartments: the liquid flow chamber and the gas chamber, which are placed on opposing faces of a GDE. Both compartments are held in place by magnetic/screw mount, providing a leakage-free O-Ring seal. The liquid chamber can be filled with an electrolyte using a syringe or an electrolyte can continuously flow through it using an external reservoir and peristaltic pump (both not included). The dry chamber is gas-tight enabling continuous flow of a gas carrier and evacuation of the gas products for sampling using standard analytical instruments such as a residual gas analyzer. Both compartments are made of a polyether ether ketone (PEEK) material. It well fits aqueous (EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The cell is meant to be used with standard reference electrode having 6 mm in diameter and counter electrode in the form of a rod/helix with 6 mm in diameter and 15 mm active.

Application note

GDE XRD Electrochemical Cell is used to effectively screen and validate GDEs for metal-air batteries, water electrolyzes, and alkaline fuel cells. It also enables in-situ X-Ray Diffraction acquisition. It is used as an air-breathing, thermodynamically referenced electroanalytical cell that allows to mimic the Janus arrangement of the GDE in a metal–air cell: one face freely exposed to gases, the other wetted by electrolyte.

Specification:

Nominal exposure area: 1 cm² (other values on request)
Electrolyte thickness: 12 mm
Liquid flow chamber volume: 1.75 mL
Maximum GDE thickness: 4 mm
Minimum GDE size: 17 mm x 25 mm
Recommended GDE size: 25 mm x 25 mm
Electrode plug diameter: 6 mm

Product Includes

1 x gas/liquid chamber
1 x flow chamber
2 x window holder - 0042PSSMA
2 x set of screws – 0032PNYCM
1 x plug
1 x Manfrotto PIXI table tripod – 0028PHYCM
1 x XS Bendy Flexible Tripod - 0043PHYCM

Setup Includes:

Gde Xrd Ec 1.75 ml - Gas Diffusion Electrode X-Ray Diffraction Electrochemical Cell 1.75 ml, Magnetic Mount, Screw Mount
Metal Wire Auxiliary Electrode - 35Hx15 0.6/235 mm, Platinum (99,9%), 1 mm Dia. Gold Plated Pin
Silver / Silver Chloride Reference Electrode - Ag/Agcl 30 mm, Non-Aqueous Silver - Ag/Ag+ 30 mm