Study of secondary porosity by SAXS and N2 adsorption in composite materials obtained from a Cuban natural clinoptilolite - Andrade-Ferreira, André; Costa-Marrero, Yailen; Autié-Castro, Giselle; Farias, Tania; Duque-Rodríguez, Julio; Costa, Maria José Fonseca; Ellena, Javier; Mascarenhas, Yvonne Primerano (Surface and Interface Analysis, 2020)