Preparation of PVP (Polyvinyl Pyrrolidone)/Ba-Sr hexaferrites via gel to crystalline method
2012 (English)In: Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry, ISSN 1553-3174, Vol. 42, no 10, 1390-1397 p.Article in journal (Refereed) Published
Ba-M- and Sr-M-type hexagonal ferrites have been prepared via a sol-gel route, and the effects of adding different amounts of polyvinyl pyrrolidone (PVP) into the sol solutions. The average crystallite, size, D and σ, was obtained as for Z13 = 22 ± 2 nm and Z13-2 = 16 ± 3 nm and for Z16 = 18 ± 7 nm and Z16-2 = 17 ± 5 nm by XRD. FT-IR and TG analysis were used to prove the presence of PVP on BaFe12O19 and SrFe12O19. Based on the TGA curves the mass losses of the samples are assessed as follows: Z13 ̃15%, Z13-2 ̃25%, Z16 ̃5%, and Z16-2 ̃10%.
Place, publisher, year, edition, pages
2012. Vol. 42, no 10, 1390-1397 p.
Hexaferrites, Magnetic nanomaterials, Magnetization, SEM, XRD
Other Chemistry Topics
IdentifiersURN: urn:nbn:se:kth:diva-116651DOI: 10.1080/15533174.2012.680150ISI: 000313950100009ScopusID: 2-s2.0-84871255015OAI: oai:DiVA.org:kth-116651DiVA: diva2:600034
QC 201301232013-01-232013-01-222013-03-18Bibliographically approved