Affiliation: | a University of Strathclyde, Department of Pure and Applied Chemistry, Thomas Graham Building, 295 Cathedral Street, Glagow G1 1XL, UK * University of Durham Industrial Research Laboratories, South Road, Durham DH1 3LE, UK † Institute Nacional del Carbon y sus Derivados (C.S.I.C.), Apartado 73, 33080, Oviedo, Spain |