Synthesis and characterization of Co - Hydrotalcite - Like compounds

M. Hesiquio-Garduño, B. Zeifert, J. Salmones, H. Reza

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

Co-Hydrotalcite-like compounds (Co-HTlcs), as precursors of mixed oxides, were synthesized by coprecipitation technique from Mg(NO3) 2·6H2O, Al(NO3) 3·9H2O and Co(NO3) 2·6H2O, with a constant molar ratio Mg/Al of 1.6 and a variable molar ratio Co/Mg from 0.01 to 0.1. The pH was controlled around 10. It is shown by XRD results, processed with the Winplotr software, that the "c" lattice parameter increases with an increasing of Co/Mg ratio and there is no change on the "a" lattice parameter. This behaviour is discussed and it was attributed to the substitution between the Mg and Co atoms in the hydrotalcite structure. Moreover, the microstructural parameters (crystallite size and strain) were analyzed by XRD, using the Williamson-Hall plot and the Two Stages Approach. It was observed that the crystal perfection is increased as the Co content increases. The morphology and layers size were studied by SEM and it was observed that the particles are stacked and formed by several layers, which causes porosity into the particles.
Original languageAmerican English
Pages257-262
Number of pages230
DOIs
StatePublished - 1 Jan 2004
EventJournal of Metastable and Nanocrystalline Materials -
Duration: 1 Jan 2004 → …

Conference

ConferenceJournal of Metastable and Nanocrystalline Materials
Period1/01/04 → …

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hydrotalcite
Porosity
Oxides
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Hesiquio-Garduño, M., Zeifert, B., Salmones, J., & Reza, H. (2004). Synthesis and characterization of Co - Hydrotalcite - Like compounds. 257-262. Paper presented at Journal of Metastable and Nanocrystalline Materials, . https://doi.org/10.4028/www.scientific.net/JMNM.20-21.257
Hesiquio-Garduño, M. ; Zeifert, B. ; Salmones, J. ; Reza, H. / Synthesis and characterization of Co - Hydrotalcite - Like compounds. Paper presented at Journal of Metastable and Nanocrystalline Materials, .230 p.
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Hesiquio-Garduño, M, Zeifert, B, Salmones, J & Reza, H 2004, 'Synthesis and characterization of Co - Hydrotalcite - Like compounds', Paper presented at Journal of Metastable and Nanocrystalline Materials, 1/01/04 pp. 257-262. https://doi.org/10.4028/www.scientific.net/JMNM.20-21.257

Synthesis and characterization of Co - Hydrotalcite - Like compounds. / Hesiquio-Garduño, M.; Zeifert, B.; Salmones, J.; Reza, H.

2004. 257-262 Paper presented at Journal of Metastable and Nanocrystalline Materials, .

Research output: Contribution to conferencePaper

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Hesiquio-Garduño M, Zeifert B, Salmones J, Reza H. Synthesis and characterization of Co - Hydrotalcite - Like compounds. 2004. Paper presented at Journal of Metastable and Nanocrystalline Materials, . https://doi.org/10.4028/www.scientific.net/JMNM.20-21.257