Mechanochemical synthesis of nanocrystalline titanium monoxide

Nanocrystalline cubic titanium monoxide, TiOx (0.92bxb1.19), with mean crystallite size of ≈6 nm, was synthesized by mechanochemical treatmentofTiandTiO2(rutile)powder mixtures withmolarratiosof1:1,1.10:1and1.25:1.Themechanochemicalsolidstatereactioninahigh-energy planetaryball millwas completed for2 h in eitherair orargon atmosphere. Duringheating invacuum at 900 and1000 °C for 24h, nanocrystalline TiOx transforms to a well-crystallized, cubic or monoclinic TiOx. The materials prepared were characterized by XRPD, TGA/DSC and SEM/EDS analysis. © 2008 Elsevier B.V. All rights reserved.

[1]  A. Rempel,et al.  Observation of structural vacancies in titanium monoxide using transmission electron microscopy , 2003 .

[2]  A. Kurlov,et al.  Determination of the particle sizes, microstrains, and degree of inhomogeneity in nanostructured materials from X-ray diffraction data , 2007 .

[3]  P. Billik,et al.  Mechanochemical synthesis of anatase and rutile nanopowders from TiOSO4 , 2007 .

[4]  O. Terasaki,et al.  The Ordered Structure of TiO1.25 , 1968 .

[5]  H. Okamoto,et al.  The Al−Au (Aluminum-gold) system , 1987 .

[6]  J. Schoen,et al.  Band Structure, Physical Properties, and Stability of TiO by the Augmented-Plane-Wave Virtual-Crystal Approximation , 1969 .

[7]  A. Rempel,et al.  Ordering of Cubic Titanium Monoxide into Monoclinic Ti5O5 , 2001 .

[8]  L. Alexander,et al.  X-ray diffraction procedures , 1954 .

[9]  A. Rempel,et al.  Preparation of disordered and ordered highly nonstoichiometric carbides and evaluation of their homogeneity , 2000 .

[10]  N. Karlsson.  Metallic Oxides with the Structure of High-speed Steel Carbide , 1951, Nature.

[11]  A. Magnéli,et al.  A NEW MODIFICATION OF TITANIUM MONOXIDE , 1956 .

[12]  A. Rempel,et al.  Structure and Specific Heat of Disordered and Ordered Titanium Monoxide TiOy , 2003 .

[13]  A. Malin,et al.  The ordered structure of TiO , 1967 .

[14]  A. Gusev,et al.  The influence of imperfection of the crystal lattice on the electrokinetic and magnetic properties of disordered titanium monoxide , 2003 .