Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 39, Issue 9, Pages 4468-4482Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.01.026
Keywords
PEM electrolyser; Electrochemical impedance spectroscopy; Two-phase flow; Bubble formation; Thermal imaging; Printed circuit board
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Funding
- EPSRC [EP/G060991/1]
- EPSRC [EP/G060991/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1010994, EP/G060991/1] Funding Source: researchfish
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An optically transparent polymer electrolyte membrane (PEM) water electrolysis cell was studied using a high-speed camera, thermal imaging and electrochemical impedance spectroscopy to examine the relationship between flow and electrochemical performance. The flow regime spans bubble and slug flow, depending on the rate of gas formation (current density) and water feed rate. Electrochemical impedance spectroscopy (EIS) shows that there is a reduction in mass transport limitation associated with the transition to slug flow. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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