Gas Dispersion Tube

Gas Bubbler with a Sintered Porous Glass Frit Maintain reproducible reaction conditions in either gas reduction or evolution reactions, or remove the dissolved oxygen before sensitive experiments Specifications | Gallery | Pricing | Related Products | Technical Support A gas dispersion tube or a bubbler is a slender tube fitted with a sintered glass frit at the tip, used to introduce and disperse gas into the electrolyte as a fine stream of bubbles. The frit breaks the gas flow into small, evenly distributed bubbles, maximising gas-liquid contact area and improving mass transport to and from the electrolyte. The dispersion tube supports three distinct functions, depending on the experiment: Purging: Remove dissolved gases (typically oxygen) from the electrolyte before an experiment begins, using an inert gas such as N₂ or Ar. This is standard practice before HER and OER studies, where dissolved O₂ can interfere with electrode kinetics or introduce background reduction currents. Saturation: Pre-equilibrate the electrolyte with a specific reactant gas so its dissolved concentration reaches a known, stable value before measurement begins. This is essential for CO₂RR, where the electrolyte must be CO₂-saturated, and NRR, where N₂ saturation defines the available nitrogen feedstock. Similarly for ORR, where the electrolyte must be O₂-saturated. Sparging: A continuous gas flow is maintained throughout the experiment, replenishing gas consumed at the electrode surface and holding a steady dissolved gas concentration during extended CO₂RR, ORR or NRR testing. Available in two lengths, 45 mm and 60 mm, to accommodate different cell depths and electrode configurations compatible with Ossila Electrochemical Cells and similar products. Please select the Dispersion Tube length according to your specific cell model. The frit disperses gas but does not prevent reverse flow. To avoid electrolyte suck-back into gas supply lines, use a suitable trap or check valve, particularly when gas flow is paused or pressure fluctuates. Also, even it's not the primary purpose, if the frit positioned above the electrolyte in the headspace, it can act as a splash/aerosol guard for gas collection applications. Efficient Gas Dispersion Disperse gas into the electrolyte as a fine stream of bubbles Three Functions Supports purging, saturation, and sparging workflows Reaction Reproducibility Help to maintain repeatability across reduction and evolution reactions Flexibility Available in 45 mm and 60 mm lengths to suit different cell geometries Specifications Product Name Gas Dispersion Tube (45mm) Gas Dispersion Tube (60mm) SKU C2047B1 C2047D1 Length 45 mm 60mm Material Borosilicate Glass Borosilicate Glass Tip/Frit Material Glass Glass Tip/Frit Diameter 5 mm 5 mm Outer Diameter 7 mm 7 mm Electrolyte Compatibility Not recommend for strongly acidic or alkaline or molten salt electrolytes Not recommend for strongly acidic or alkaline or molten salt electrolytes Diagram of 45 mm and 60 mm Gas Dispersion Tube Gas Dispersion Tube Gallery Previous Next Pricing and Options Product Name Product Code Price Gas Dispersion Tube (45 mm) C2047B1 £25 Gas Dispersion Tube (45 mm)- Pack of 5 C2047B1-5 £110 Gas Dispersion Tube (60 mm) C2047D1 £25 Gas Dispersion Tube (60 mm)- Pack of 5 C2047D1-5 £110 Related Products Electrochemical Cells Photoelectrochemical Cells Electrodes