1. Department of Energy, Chemical, and Mechanical Technology, ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n, 28933 Móstoles, Madrid, Spain
2. Energy and Power Theme, School of Water, Energy and Environment, Cranfield University, Bedford, Bedfordshire, MK43 0AL, UK
3. Energy Policy Research Group, Judge Business School, University of Cambridge, Trumpington Street, Cambridge, CB2 1AG, UK
4. Materials, Concepts and Reaction Engineering (MatCoRE) Research Group, School of Engineering, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
5. Centre for Energy, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK