Synthesis of high specific surface area Cr
            <sub>2</sub>
            O
            <sub>3</sub>
            nanopowder

Kakaei-Lafdani, M.H.; Khafri, Soraya

doi:10.1049/mnl.2012.0647

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Introduction: Nanoparticles Of Cr 2 O 3 (Chromia and Eskolaite)1

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Cited by 4 publications

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“…The maximum surface area that has been reported for producing chromic oxide nanopowder without using templates is 39.3 m 2 /g [14]. However, a high specific area of 102.7 m 2 /g was reported using ethylenediaminetetraacetic acid as a chelating agent [12].…”

Section: Resultsmentioning

confidence: 99%

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Producing Cr ₂ O ₃ nanooxide from chromite concentrates

Aghaie-Khafri¹,

Navazany²

2014

Micro & Nano Letters

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High-purity (99.9+%) nanosize Cr 2 O 3 was produced from chromite concentrates. Sodium dichromate was produced from an alkaline melt of chromite ore and then nanosize Cr 2 O 3 was obtained by reaction between sodium dichromate and sulphur. Nanooxides were investigated by scanning electron microscopy, transmission electron microscopy and X-ray diffraction analysis. The size of particles was 50-148 nm. The nanoparticles show a loosely agglomerated structure. The presented method is simple and economical.

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Section: Resultsmentioning

confidence: 99%

“…Consequently, new methods for preparation need to be discovered. Alkaline melt is a typical way to prepare chromium oxides [9,10], but until now, the sizes of final particles that have been produced by this method are greater than 600 nm [11,12].…”

Section: Introduction: Nanoparticles Of Cr 2 O 3 (Chromia and Eskolaite)mentioning

confidence: 99%