2010-Sol–gel synthesis of forsterite nanopowders with narrow particle size distribution.pdfVIP

Journal of Alloys and Compounds 495 (2010) 113–115 Contents lists available at ScienceDirect Journal of Alloys and Compounds j o u rn al h omepage: w w w. elsev /locate/jallcom Sol–gel synthesis of forsterite nanopowders with narrow particle size distribution K.P. Sanosh a,b , A. Balakrishnan a,b , L. Francis c , T.N. Kim a,∗ a Department of Information and Electronic Materials Engineering, College of Engineering, Paichai University, Daejeon, 302-735, Republic of Korea b Division of Metrology for Emerging Technology, Korea Research Institute of Standards and Science, 1 Doryong-Dong, Yuseong-Gu, Daejeon 305-340, Republic of Korea c University of Genova, Department of Chemistry and Industrial Chemistry, via Dodecaneso 31, 16146, Genova, Italy a r t i c l e i n f o a b s t r a c t Article history: Forsterite (FS) nanopowders (∼27 nm) were synthesized using a sol–gel route with magnesium nitrate Received 24 August 2009 hexahydrate and tetra ethyl ortho-silicate as magnesium and silicon precursors, respectively. Nitric acid Received in revised form 19 January 2010 was used as a catalyst. After aging, the FS gel was calcined at 800 ◦ C for 30 min. The calcined powders Accepted 21 January 2010 were characterized for phase composition using X-ray diffractrometry and fourier transform-infrared Available online 1 February 2010 spectroscopy. The particle size and morphology was studied using transmission electron microscopy. The particle size distribut