1. Max Planck Centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
2. HarwellXPS, Research Complex at Harwell (RCaH), Didcot, OX11 OFA, UK
3. Dŵr Cymru Welsh Water, Pentwyn Road, Nelson, Treharris, CF46 6LY, UK