Authors:
Sara Palmer Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences 2 George Street GPO Box 2434 Brisbane Queensland 4001 Australia

Search for other papers by Sara Palmer in
Current site
Google Scholar
PubMed
Close
,
J. Kristóf University of Pannonia Department of Analytical Chemistry 8201 Veszprém PO Box 158 Pannonia Hungary

Search for other papers by J. Kristóf in
Current site
Google Scholar
PubMed
Close
,
Veronika Vágvölgyi University of Pannonia Department of Analytical Chemistry 8201 Veszprém PO Box 158 Pannonia Hungary

Search for other papers by Veronika Vágvölgyi in
Current site
Google Scholar
PubMed
Close
,
Erzsébet Horváth University of Pannonia Department of Environmental Engineering and Chemical Technology 8201 Veszprém PO Box 158 Pannonia Hungary

Search for other papers by Erzsébet Horváth in
Current site
Google Scholar
PubMed
Close
, and
R. Frost Queensland University of Technology Inorganic Materials Research Program, School of Physical and Chemical Sciences 2 George Street GPO Box 2434 Brisbane Queensland 4001 Australia

Search for other papers by R. Frost in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract  

The mechanism for the decomposition of hydrotalcite remains unsolved. Controlled rate thermal analysis enables this decomposition pathway to be explored. The thermal decomposition of hydrotalcites with hexacyanoferrate(II) and hexacyanoferrate(III) in the interlayer has been studied using controlled rate thermal analysis technology. X-ray diffraction shows the hydrotalcites have a d(003) spacing of 10.9 and 11.1 Å which compares with a d-spacing of 7.9 and 7.98 Å for the hydrotalcite with carbonate or sulphate in the interlayer. Calculations show dehydration with a total loss of 7 moles of water proving the formula of hexacyanoferrate(II) intercalated hydrotalcite is Mg6Al2(OH)16[Fe(CN)6]0.5·7H2O and 9.0 moles for the hexacyanoferrate(III) intercalated hydrotalcite with the formula of Mg6Al2(OH)16[Fe(CN)6]0.66·9H2O. CRTA technology indicates the partial collapse of the dehydrated mineral. Dehydroxylation combined with CN unit loss occurs in two isothermal stages at 377 and 390°C for the hexacyanoferrate(III) and in a single isothermal process at 374°C for the hexacyanoferrate(III) hydrotalcite.

  • Collapse
  • Expand

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

For subscription options, please visit the website of Springer Nature.

Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Oct 2023 0 2 0
Nov 2023 1 2 0
Dec 2023 13 0 0
Jan 2024 3 1 0
Feb 2024 3 0 0
Mar 2024 3 0 0
Apr 2024 3 0 0