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Application of process intensification to water electrolysis

Lookup NU author(s): Dr Hua Cheng, Emeritus Professor Keith Scott, Professor Colin Ramshaw


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The operation of water electrochemical cells in centrifugal fields is demonstrated. Data for water electrolysis in acid, neutral and highly alkaline electrolyte is obtained using linear sweep voltammetry. A cell voltage reduction of up to 700 mV, an anode potential reduction of up to 500 mV, and a cathode potential reduction of up to 350 mV at 3 kA m-2 are achieved at 190 G and 80 °C, compared to those in stationary conditions. The saving in energy are significantly larger than the small amount required to rotate the cells. The relationship between the cell performance, applied `G' value, electrode material, and electrolyte concentration is reported.

Publication metadata

Author(s): Cheng H, Scott K, Ramshaw C

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 5th European Symposium on Electrical Engineering

Year of Conference: 1999

Pages: 291-298

ISSN: 0307-0492

Publisher: Institution of Chemical Engineers (IChemE)