TY - JOUR
T1 - Sol-gel synthesis of hydrotalcite - Like compounds
AU - Paredes, S. P.
AU - Fetter, G.
AU - Bosch, P.
AU - Bulbulian, S.
N1 - Funding Information:
The authors acknowledge the CONACYT for financial support (project 44253-Q) and the X-ray diffraction work of Leticia Baños is gratefully recognized.
PY - 2006/6
Y1 - 2006/6
N2 - Sol-gel hydrotalcite-like compounds were prepared using two different magnesium precursors, on the one hand magnesium ethoxide and on the other magnesium acetylacetonate. The aluminum precursor was always aluminum acetylacetonate. The resulting interlayer anions were ethoxide-acetylacetonate and acetylacetonate, respectively. Instead of the conventionally accepted thermal autoclave treatment, a new gelling and crystallization method is proposed using microwave irradiation. The solids were characterized by X-ray diffraction, nitrogen physisorption, thermogravimetric analysis, infrared spectroscopy and transmission electron microscopy. It is found that the acetylacetonate precursors determine surface area and crystallinity. Microwave irradiation guarantees a high surface area for an irradiation time as low as 10 min.
AB - Sol-gel hydrotalcite-like compounds were prepared using two different magnesium precursors, on the one hand magnesium ethoxide and on the other magnesium acetylacetonate. The aluminum precursor was always aluminum acetylacetonate. The resulting interlayer anions were ethoxide-acetylacetonate and acetylacetonate, respectively. Instead of the conventionally accepted thermal autoclave treatment, a new gelling and crystallization method is proposed using microwave irradiation. The solids were characterized by X-ray diffraction, nitrogen physisorption, thermogravimetric analysis, infrared spectroscopy and transmission electron microscopy. It is found that the acetylacetonate precursors determine surface area and crystallinity. Microwave irradiation guarantees a high surface area for an irradiation time as low as 10 min.
UR - http://www.scopus.com/inward/record.url?scp=33745725973&partnerID=8YFLogxK
U2 - 10.1007/s10853-005-5347-4
DO - 10.1007/s10853-005-5347-4
M3 - Artículo
AN - SCOPUS:33745725973
SN - 0022-2461
VL - 41
SP - 3377
EP - 3382
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 11
ER -