Email this article Magnetic properties of composite materials based on plant- or mineral-derived amorphous silica
- Authors: Panasenko A.E.1,2, Tkachenko I.A.1, Kvach A.A.1, Zemnukhova L.A.1,2
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Affiliations:
- Institute of Chemistry, Far-East Branch
- Far-East Federal University
- Issue: Vol 62, No 7 (2017)
- Pages: 971-975
- Section: Physical Methods of Investigation
- URL: https://journals.rcsi.science/0036-0236/article/view/167871
- DOI: https://doi.org/10.1134/S0036023617070166
- ID: 167871
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Abstract
Fex(O, OH)y–SiO2 composite samples are prepared. The composite matrix is amorphous silica prepared by controlled precipitation from silicate solutions or silica derived from rice husks. The iron is shown to exist in the form of acagenite β-FeO(OH) or hematite α-Fe2O3. The magnetic properties of the composites are studied at temperatures in the range 2–300 K and fields in the range ±5 T. The composite samples exhibit superparamagnetic properties.
About the authors
A. E. Panasenko
Institute of Chemistry, Far-East Branch; Far-East Federal University
Email: skulini_86@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; Ayaks vil. 10, Vladivostok, 690000
I. A. Tkachenko
Institute of Chemistry, Far-East Branch
Email: skulini_86@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022
A. A. Kvach
Institute of Chemistry, Far-East Branch
Author for correspondence.
Email: skulini_86@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022
L. A. Zemnukhova
Institute of Chemistry, Far-East Branch; Far-East Federal University
Email: skulini_86@mail.ru
Russian Federation, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022; Ayaks vil. 10, Vladivostok, 690000
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