Department of Chemistry, University College London, London WC1E 6BT, UK.
Research Interests: catalysis; surface reactions of oxides.

Department of Chemical Engineering, Universitat Politècnica de Catalunya, EEBE, Eduard Maristany 16, Barcelona, Spain.
Research Interests: catalysts; energy; environment; fuels; hydrogen.

Surface Science and Advanced Characterization, SABIC-CRD at KAUST, Thuwal 23955, Saudi Arabia.
Research Interests: solar H2 production; surface science & industrial catalysis; electrochemistry & PV-electrolysis.
