Accessibility and strength of H-acceptor hydroxyls of ordered mesoporous silicas probed by pyridine donor - Alves, Mayara R.; Paiva, Mateus Freitas; Campos, Pablo T. A.; Freitas, Elon Ferreira de; Clemente, Maria Clara Hortencio; Martins, Gesley Alex Veloso; Silveira Jr., Alceu T.; Silva, Luis; Fantini, Márcia Carvalho de Abreu; Dias, Silvia; Dias, José Alves (Journal of Porous Materials, 2020)