Senior Lecturer (Department of Mechanical Engineering)
Dr. Ishanka Dedigama holds a MEng in Chemical Engineering and a PhD in Electrochemical Engineering from University College London (UCL), UK. She is an expert in hydrogen energy devices having completed her PhD in Diagnostics and Modeling of Polymer Electrolyte Membrane water electrolysers. She has published extensively in high-quality scientific journals and is the most published female academic in the UK in water electrolysis. Dr. Dedigama has worked as a Senior Policy Advisor for the UK Government developing cyber security policies for their energy sector with a special focus on the smart energy grid and renewable energies. She is a Director of Lanka Electricity Company Pvt. Ltd (LECO) and the founder of Green Hydrogen Innovation Lab at the Faculty of Engineering, University of Sri Jayewardenepura. She is truly passionate about preparing for a zero emission future and dedicates her research efforts towards developing green hydrogen technologies.
PhD Thesis (2014), University College London (UCL), UK: Diagnostics and Modeling of Polymer Electrolyte Membrane Water Electrolysers
Journal Papers
Jude O Majasan, Francesco Iacoviello, Jason IS Cho, Maximilian Maier, Xuekun Lu, Tobias P Neville, Ishanka Dedigama, Paul R Shearing, Daniel JL Brett. Correlative study of microstructure and performance for porous transport layers in polymer electrolyte membrane water electrolysers by X-ray computed tomography and electrochemical characterization. International Journal of Hydrogen Energy. 2019;44:19519-32.
Jude O Majasan, Jason IS Cho, Ishanka Dedigama, Dimitrios Tsaoulidis, Paul Shearing, Dan JL Brett. Two-phase flow behaviour and performance of polymer electrolyte membrane electrolysers: Electrochemical and optical characterisation. International journal of hydrogen energy. 2018;43:15659-72.
M Maier, Q Meyer, J Majasan, C Tan, I Dedigama, J Robinson, J Dodwell, Y Wu, L Castanheira, G Hinds, PR Shearing, DJL Brett. Operando flow regime diagnosis using acoustic emission in a polymer electrolyte membrane water electrolyser. Journal of Power Sources. 2019;424:138-149.
Ana Belen Jorge, Ishanka Dedigama, Thomas S Miller, Paul Shearing, Daniel JL Brett, Paul F McMillan. Carbon nitride materials as efficient catalyst supports for proton exchange membrane water electrolyzers. Nanomaterials. 2018;8:432.
Farid Aubras, J Deseure, J-JA Kadjo, I Dedigama, J Majasan, Brigitte Grondin-Perez, J-P Chabriat, DJL Brett. Two-dimensional model of low-pressure PEM electrolyser: Two-phase flow regime, electrochemical modelling and experimental validation. International journal of hydrogen energy. 2017;42:26203-16.
Noramalina Mansor, Thomas S Miller, Ishanka Dedigama, Ana Belen Jorge, Jingjing Jia, Veronika Brázdová, Cecilia Mattevi, Chris Gibbs, David Hodgson, Paul R Shearing, Christopher A Howard, Furio Corà, Milo Shaffer, Daniel JL Brett, Paul F McMillan. Graphitic carbon nitride as a catalyst support in fuel cells and electrolyzers. Electrochimica Acta. 2016;222:44-57.
N Mansor, TS Miller, I Dedigama, AB Jorge, J Jia, V Brázdová, C Mattevi, C Gibbs, D Hodgson, PR Shearing, CA Howard, F Cora. Graphitic Carbon Nitride as a Catalyst Support in Fuel Cells and Electrolyzers. Electrochimica Acta. 2016;222:44-57.
Dedigama I, Angeli P, Ayers K, Robinson JB, Shearing PR, Tsaoulidis D, Brett DJL. In situ diagnostic techniques for characterisation of polymer electrolyte membrane water electrolysers–Flow visualisation and electrochemical impedance spectroscopy. International Journal of Hydrogen Energy. 2014;39:4468-82
Ishanka Dedigama, Pangiota Angeli, Nicholas van Dijk, Jason Millichamp, Dimitrios Tsaoulidis, Paul R Shearing, Daniel JL Brett. Current density mapping and optical flow visualisation of a polymer electrolyte membrane water electrolyser. Journal of Power Sources. 2014;265:97-103.
Ishanka Dedigama, Kathy Ayers, Paul R Shearing, Daniel JL Brett. An experimentally validated steady state polymer electrolyte membrane water electrolyser model. International Journal of Electrochemical Science. 2014;9:2662-81.
Conference Proceedings
Jude Olaoluwa Majasan, Jason IS Cho, Maximilian Maier, Ishanka Dedigama, Paul R Shearing, Daniel JL Brett. Effect of anode flow channel depth on the performance of polymer electrolyte membrane water electrolyser. ECS transactions. 2018;85:1593.
Ishanka Dedigama, Daniel JL Brett, Thomas J Mason, Jason Millichamp, Paul R Shearing, Katherine E Ayers. An electrochemical impedance spectroscopy study and two phase flow analysis of the anode of polymer electrolyte membrane water electrolyser. ECS Transactions. 2015;68:117.
Ana Belen Jorge Sobrido, I Dedigama, Noramalina Mansor, Rhodri Jervis, TS Miller, Furio Corà, P Shearing, Christopher Gibbs, Paul F McMillan, Dan J Brett. Graphitic carbon nitride materials for energy applications. ECS Transactions. 2015;64:13.
Patents
Daniel John Leslie Brett, Leon Brown, Thomas James Mason, Ishanka Dedigama, Anthony Robert John Kucernak. Flow batteries with current collectors having a dielectric coating. 2022. US/ 11387479.
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Project |
Affiliation |
Student Name |
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Mathematical Modeling of PEM Water Electrolysers for the Production of Green Hydrogen in Sri Lanka |
MPhil- Faculty of Engineering, University of Sri Jayewardenepural |
Mr. Uvindu Thilakarathne |
Phone: Ext. –
E-mail: ishankadedigama@sjp.ac.lk