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BentoniteIron Oxide Composites: Preparation and Characterization by Hyperfine Methods
Joint Authors
Křišťan, Petr
Chlan, Vojtěch
Štěpánková, Helena
Řezníček, Richard
Kouřil, Karel
Štěpánek, Josef
Poláková, Kateřina
Procházka, Vít
Čuda, Jan
Medřík, Ivo
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-16
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Bentonite/iron oxide system is prepared by isothermal calcination of powder composed of bentonite clay and precursor containing ferric acetate.
This preparation technique enables one to get the composite material directly, that is, iron oxide particles embedded in a bentonite matrix.
Calcination temperature Tcalc is varied from 320°C to 700°C.
The resulting series of samples is characterized by local methods based on hyperfine interactions: 57Fe nuclear magnetic resonance (NMR) and the Mössbauer spectroscopy.
The results show that the phase composition changes significantly in dependence on calcination temperature.
The amount of maghemite phase rapidly increases up to Tcalc=420°C and decreases abruptly for Tcalc higher than 460°C.
American Psychological Association (APA)
Křišťan, Petr& Chlan, Vojtěch& Štěpánková, Helena& Řezníček, Richard& Kouřil, Karel& Štěpánek, Josef…[et al.]. 2013. BentoniteIron Oxide Composites: Preparation and Characterization by Hyperfine Methods. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-1007339
Modern Language Association (MLA)
Křišťan, Petr…[et al.]. BentoniteIron Oxide Composites: Preparation and Characterization by Hyperfine Methods. Journal of Nanomaterials No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-1007339
American Medical Association (AMA)
Křišťan, Petr& Chlan, Vojtěch& Štěpánková, Helena& Řezníček, Richard& Kouřil, Karel& Štěpánek, Josef…[et al.]. BentoniteIron Oxide Composites: Preparation and Characterization by Hyperfine Methods. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-1007339
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1007339