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In this study, the synthesis of nanostructured particles of nitrides (Cr 2 N, Co 2 N, Fe 4 N, Cu 3 N, Ni 3 N), metal (Cu) and oxides (Al 2 O 3 , TiO 2 , Ga 2 O 3 ) by using supercritical ammonia in the reaction medium is described. The elaboration process is based on the thermal decomposition of metal precursors in a supercritical ammonia-methanol mixture at a range of temperatures between 170 and 290 °C at about 16 MPa. Nitrides are obtained at relatively low temperatures in comparison withdoi:10.1039/b310806f fatcat:li2ocjhrcjenjga4245ha47vmu