Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ces.2004.09.048
Title: Highly dispersed zinc phosphate microdomains in mesoporous silica
Authors: Bhaumik, A.
Samanta, S.
Mal, N.K.
Kumar, P.
Manna, A. 
Keywords: Immobilization
Mesoporous silica
Microstructure
Zeolites
Zinc phosphate
Issue Date: Feb-2005
Source: Bhaumik, A., Samanta, S., Mal, N.K., Kumar, P., Manna, A. (2005-02). Highly dispersed zinc phosphate microdomains in mesoporous silica. Chemical Engineering Science 60 (3) : 839-843. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ces.2004.09.048
Abstract: In situ immobilization of crystalline zinc phosphate nuclei in the mesoporous silica material resulted in a highly ordered 2D-hexagonal mesoporous material with evenly dispersed crystalline NaZnPO 4 microdomains in its matrix using the self-assembly of cationic surfactant under hydrothermal synthesis condition. Four samples with different Si:Zn:P:Na mole ratios have been prepared. X-ray diffraction (XRD) patterns of the as-synthesized as well as template-free samples indicated the presence of mesophase in each case. N 2 adsorption data indicated mesoporosity in the samples together with the existence of crystalline NaZnPO 4 phase for the materials synthesized with Si/Zn mole ratio 5-12. 29Si MAS NMR results showed high value of the Q 4/Q 3 ratio in these materials suggesting highly crosslinked structure. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Chemical Engineering Science
URI: http://scholarbank.nus.edu.sg/handle/10635/132712
ISSN: 00092509
DOI: 10.1016/j.ces.2004.09.048
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