Development Of Novel Chemical Synthetic Routes For Nanocrystalline VN, Mo2N, And W2N Nitride Materials

In this study, novel synthetic routes for the synthesis of VN, Mo2N and W2N binary nitrides have been presented. We have synthesized new precursors, i.e. V2O5 from citric acid based sol-gel method and Mo, W based ethylenediamine complex which are used for the nitridation experiments using solid urea (NH2CONH2) or ammonia (NH3(g)). We have successfully prepared phase pure nano-dimensional nitride materials. The estimated crystallite sizes and SEM particle sizes were found in the range of 4-16 nm and 111-870 nm, respectively. VN, Mo2N and W2N nitrides crystallize in fcc-cubic structures with the values of lattice parameters; 4.128, 4.165 and 4.175 angstrom for urea route and 4.112, 4.196 and 4.150 angstrom for ammonia route, respectively.