1. Instituto de Tecnologı́a Quı́mica UPV-CSIC, Avda. de los Naranjos s/n, 46022 Valencia, Spain
2. Laboratory
of Molecular Sieves-LABPEMOL, Institute of Chemistry, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho 3000, Lagoa Nova, Natal, Rio Grande do Norte 59072-970, Brazil