QUT ePrints

Synthesis and infrared spectroscopic characterization of selected layered double hydroxides containing divalent Ni and Co

Tao, Qi, Reddy, B. Jagannadha, He, Hongping, Frost, Ray L., Yuan, Peng, & Zhu, Jianxi (2008) Synthesis and infrared spectroscopic characterization of selected layered double hydroxides containing divalent Ni and Co. Materials Chemistry and Physics, 112(3), pp. 869-875.

View at publisher

Abstract

Two new materials based upon layered double hydroxides with nickel and cobalt in the brucite like layer with and without an anionic surfactant dodecylsulfonate (DS) have been synthesized and characterized by both near-infrared and infrared spectroscopy. This work shows that large anionic surfactants can be incorporated into the interlayer of the LDHs. The presence of the carbonate anions in the interlayer and the hydroxyl surface are readily analyzed by these techniques. The two materials of Ni3 and Co3Al-layered double hydroxides show different behaviour in the near-infrared and FTIR spectra both in terms of position and band intensity. This is an indirect indication of the incorporation transition metal ions into the brucite like layers. The nature of the observed reflectance bands in the near-infrared spectral region 12000-8000 cm-1 is explained in terms of the d-d electronic transitions within the divalent nickel and cobalt brucite layers. The crystal field strengths of octahedral Ni2+ and Co2+ in the synthesised layered double hydroxides are close to but smaller than those in Ni-and Co-bearing carbonate minerals. The analysis of CO32- vibrational modes v1, v2, v3 and v4 in FTIR spectra at 1045, 885, 1350 and 760 cm-1 reveals the presence of carbonate ion in the synthetic layered double hydroxides.

Impact and interest:

15 citations in Scopus
Search Google Scholar™
13 citations in Web of Science®

Citation countsare sourced monthly from Scopus and Web of Science® 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 the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

1,008 since deposited on 18 Nov 2008
422 in the past twelve months

Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 15655
Item Type: Journal Article
Keywords: A, Inorganic compounds, B, Chemical synthesis, C, NIR and FTIR spectroscopy, D, Optical properties
DOI: 10.1016/j.matchemphys.2008.06.060
ISSN: 0254-0584
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2008 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 18 Nov 2008
Last Modified: 29 Feb 2012 23:46

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page