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- Muscas, GiuseppeUppsala universitet,Materialfysik (author)
Tuning the Size and Shape of Oxide Nanoparticles by Controlling Oxygen Content in the Reaction Environment : Morphological Analysis by Aspect Maps
- Article/chapterEnglish2015
Publisher, publication year, extent ...
- 2015-03-06
- American Chemical Society (ACS),2015
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:uu-252227
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252227URI
- https://doi.org/10.1021/cm5038815DOI
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- Language:English
- Summary in:English
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- The thermal decomposition of acetylacetonate precursors is one of the most employed syntheses to prepare high quality colloidal magnetic nanopartides. In this paper, an advanced version of this synthetic approach was developed to prepare cobalt ferrite nanopartides, introducing for the first time a rigorous control on one commonly neglected reaction parameter, that is, the residual oxygen content in the reaction environment. A new concept derived from the statistical analysis of S(T)EM images, i.e., the so-called aspects maps, was introduced: this tool has allowed us to clearly identify the optimal value of pressure to produce particles with an average size,similar to 19 nm and with a very narrow size distribution (polydispersity 0.4 nm(-1)). The magnetic properties of this sample were also analyzed, and a strong improvement of the magnetization reversal mechanism, which is a critical issue for several technological applications, was observed.
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Engineering Science with specialization in Solid State Physics
Added entries (persons, corporate bodies, meetings, titles ...)
- Singh, G. (author)
- Glomm, W. R. (author)
- Mathieu, RolandUppsala universitet,Fasta tillståndets fysik(Swepub:uu)rma26208 (author)
- Kumar Puri, AnilUppsala universitet,Fasta tillståndets fysik(Swepub:uu)anipu979 (author)
- Concas, G. (author)
- Agostinelli, E. (author)
- Peddis, D. (author)
- Uppsala universitetMaterialfysik (creator_code:org_t)
Related titles
- In:Chemistry of Materials: American Chemical Society (ACS)27:6, s. 1982-19900897-47561520-5002
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