Authors: de Sousa, EMB Guimaraes, AP Mohallem, NDS Lago, RM

Citation: Emb. De Sousa et al., The effect of thermal treatment on the properties of sol-gel copper-silicacatalysts, APPL SURF S, 183(3-4), 2001, pp. 216-222

Authors: de Sousa, EMB Porto, AO Schilling, PJ Alves, MCM Mohallem, NDS

Citation: Emb. De Sousa et al., Study of the structural evolution of copper-doped porous silica gels, J PHYS CH S, 61(6), 2000, pp. 853-861

Authors: de Sousa, EMB de Magalhaes, WF Mohallem, NDS

Citation: Emb. De Sousa et al., Characterization of silica nanocomposites obtained by sol-gel process using positron annihilation spectroscopy, J PHYS CH S, 60(2), 1999, pp. 211-221