Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/4216
Title: Preparo de óxido de nióbio suportado em alumina por deposição química em fase vapor: caracterização por espectroscopia vibracional e termogravimetria
Keywords: niobium
alumina
chemical vapor deposition
Issue Date: 30-May-2013
Publisher: Sociedade Brasileira de Química
Description: Alumina supported niobium oxide was prepared by chemical vapor deposition (CVD) of NbCl5. The alumina was calcined and pretreated at differents temperatures in order to vary the density of OH groups on the surface which was determined by thermogravimetric analysis. A good correlation was found between the amount of anchored niobium and the total number of anionic sites (oxide and hydroxyl groups) on the surface of the alumina. The infrared spectra on the OH stretching region indicate that OH groups coordinated to at least one tetrahedral aluminum were more reactive towards NbCl5.
URI: http://koha.mediu.edu.my:8181/jspui/handle/123456789/4216
Other Identifiers: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000200010
http://www.doaj.org/doaj?func=openurl&genre=article&issn=01004042&date=1998&volume=21&issue=2&spage=157
Appears in Collections:Chemistry

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