Title :
Synthesis of high specific surface area Cr2O3 nanopowder
Author :
Kakaei-Lafdani, M.H. ; Aghaie-Khafri, Mehrdad
Author_Institution :
Fac. of Mech. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran
fDate :
10/1/2012 12:00:00 AM
Abstract :
Chromium oxide (Cr2O3) nanopowder was successfully synthesised in aqueous and non-aqueous medium using ethylenediaminetetraacetic acid (EDTA) as a chelating agent. The highest specific surface area of 102.7 m2/g was obtained in an aqueous medium at [EDTA]/[Cr+3] ratios of 1. The effects of reactant concentration, aqueous medium and reflux time were studied. Cr2O3 nanopowders were characterised by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller surface area measurements.
Keywords :
X-ray diffraction; chromium compounds; nanofabrication; nanoparticles; powder technology; scanning electron microscopy; transmission electron microscopy; Brunauer-Emmett-Teller surface area measurement; Cr2O3; X-ray diffraction; aqueous medium; chelating agent; chromium oxide; ethylenediaminetetraacetic acid; nanopowder synthesis; nonaqueous medium; reactant concentration; reflux time; scanning electron microscopy; specific surface area; transmission electron microscopy;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2012.0647
