1. Univ. Lille, CNRS, ENSCL, Centrale Lille, Univ. Artois, UMR 8181 – UCCS –Unité de Catalyse et Chimie du Solide 59000 Lille France
2. “Gheorghe Asachi” Technical University of IasiFaculty of Chemical Engineering and Environmental Protection 73 D. Mangeron Bvd. 700050 Iasi Romania