Superparamagnetic γ-Fe2O3 nanoclusters in silicate matrices View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2006-04

AUTHORS

Yu. V. Maksimov, I. P. Suzdalev, V. N. Ikorskii, O. G. Ellert, V. M. Novotortsev, M. V. Tsodikov, J. A. Navio

ABSTRACT

Superparamagnetic γ-Fe2O3 nanoclusters have been synthesized on the surfaces of activated layered silica (ALS) and activated mesoporous silica gel (AMS). According to 300-K Mössbauer spectroscopy data and magnetization measurements between 2 and 300 K, the size of the γ-Fe2O3 nanoclusters increases from 2–3 to s~6–8 nm as the Fe content of ALS increases from 2.5 and 4.5 to 18.5 wt %. The 2.5 wt % Fe/ALS sample contains superparamagnetic γ-Fe2O3 nanoclusters uniform in size and magnetic properties. The nanoclusters produced on the AMS surface are larger and are nonuniform in magnetic properties. More... »

PAGES

377-380

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s002016850604008x

DOI

http://dx.doi.org/10.1134/s002016850604008x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1035355837


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