Far infrared spectroscopy of alumina phases
Ruan, Huada, Frost, Ray L., Kloprogge, J. Theo, & Duong, Loc (2002) Far infrared spectroscopy of alumina phases. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 58(2), pp. 265-272.
Far-infrared spectroscopy (FIR) has been used to distinguish alumina phases boehmite, diaspore, gibbsite and bayerite. The pellets of samples were prepared by mixing alumina phases with polyethylene at a ratio of 1:50, and the spectra were recorded between 50 and 400 cm−1. The spectrum of boehmite resembles that of diaspore in the 300–400 cm−1 region. Boehmite has two characteristic FIR bands at 366 and 323 cm−1, while diaspore has five at 354, 331, 250, 199 and 158 cm−1. The spectrum of gibbsite resembles that of bayerite in the 230–300 cm−1 region. Gibbsite shows three characteristic FIR bands at 371, 279 and 246 cm−1, whereas bayerite shows six at 383, 345, 326, 296, 252 and 62 cm−1. The overlapping bands were resolved, and the spectra were manipulated appropriately using band analysis techniques. The FIR spectra are in harmony with the FT-Raman spectra. Far-infrared spectroscopy allows the study and differentiation of the stretching of AlO4 units to characterize these four alumina phases. Far-IR spectroscopy complements the mid-IR and near-IR for distinguishing alumina phases in bauxites.
Citation countsare sourced monthly fromand citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ANALYTICAL CHEMISTRY (030100)|
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2002 Elsevier|
|Deposited On:||17 Jun 2009 23:17|
|Last Modified:||03 Sep 2009 09:58|
Repository Staff Only: item control page