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The course of characterisation methods for describing the behaviour of fuel cells and water electrolysers covers the main aspects of construction and operation. The methods range from characterising constituent materials used to make components and single cells, to short stacks and finally through to full stacks and systems. The need to address lifetime degradation and operational changes is achieved by treating characterisation before, during and after operation, in other words both spatial and temporal considerations are explained. Last update: Paidar Martin (07.11.2022)
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The outcomes of the module will provide understanding and competence in the following areas- • Inspect and appraise the performance of fuel cells in terms of stability, power output, longevity; • Plan and design experimental procedures to critically evaluate the operation of fuel cells, catalyst utilisation, electrochemically active catalyst surface area and poisoning; • Assess and evaluate the different electrochemical concepts including cyclic voltammetry, electrochemical impedance spectroscopy, chronoamperometry to study fuel cells components; • Compare, differentiate and analyse different material characterisation techniques; • Evaluate different material properties and requirements (morphology, conductivity, water retention etc) for electrocatalysts, catalyst supports, conducting membranes and other fuel cell components by combining electrochemical and material characterisation. Last update: Paidar Martin (07.11.2022)
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Completing a course is an oral exam. The requirement for an oral exam is a graduation project defence. Last update: Paidar Martin (07.11.2022)
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BARD, Allen J. a Larry R. FAULKNER. Electrochemical methods : fundamentals and applications. 2nd ed. New York: John Wiley & Sons, 2001. xxi, 833. ISBN 0471043729. W.Vielstich/A.Lamm/H.Gasteiger (Eds.): Handbook of Fuel Cells, 6 Volumes (Wiley, 2003, ISBN 0-471-49926-9 ff.) Orazem, Mark E. ,Electrochemical Impedance Spectroscopy Wiley-Interscience (2008) ISBN 10: 0470041404 Last update: Paidar Martin (07.11.2022)
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General Introduction to characterisation methods Electrochemical methods for cell testing during operation- including determination of IV characteristics and EIS responses Stack electrochemical characterisation during operation – including IV characteristics, EIS resposes and power performace characteristics Fuel cell single cell characterisation and electrolysis characterisation, including half-cell measurements Stack degradation characterisation during operation Components, cell and stack degradation post-operation characterisation Short stack characterisation Quality control on components and cells, pre-operation Quality control on stack and systems, pre-operation and during operation Flow fields and current collection Characterisation of components, pre- and during operation Characterisation of materials used to make cells and stacks Last update: Paidar Martin (07.11.2022)
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