A facile route to VN and V2O3 nanocrystals from single precursor NH4VO3

Synthesis of VN nanopowders by thermal nitridation of the precursor and their characterization

“…As is usual with nitrides, after exposure to the air the VN particle or film is unavoidably covered with an oxidized surface layer [27]. Similar results have been obtained in the literature [19]. Fig.…”

“…Rodríguez et al [18] have successfully synthesized vanadium nitride and carbide by the temperatureprogrammed reaction of ammonium vanadate (NH 4 VO 3 ) with pure NH 3 and 20% CH 4 in H 2 , respectively. Yang et al [19] have successfully synthesized V 2 O 3 and VN nanocrystals by the decomposition of the precursor NH 4 VO 3 and following nitridation in an autoclave with metallic Na flux at 450-600 • C. Yong et al [14] have directly prepared VN nanopowders via decomposition of gas-phase vanadium oxytrichloride (VOCl 3 ) in N 2 /Ar/H 2 microwave plasma generated at the atmospheric pressure. Bang et al [20] have successfully synthesized VN nanoparticles via decomposition of gas-phase starting materials (VCl 4 ) by an atmospheric microwave plasma torch, and so on.…”

Controlled synthesis of Fe3O4 nanosheets via one-step pyrolysis of EDTA ferric sodium salt

“…From the crystallographic viewpoint and growth mechanism, solid-state thermal decomposition method has been regarded as one of reasonable and in situ approaches due to its simple and facile processing, short reaction time, and homogeneous products [16][17][18][19]. However, conventional solid-state thermal decomposition synthesis of metal oxide nanostructures faces two difficulties: inhibiting particulate agglomeration and promoting phase formation [20,21].…”

Synthesis and characterization of V2O3 nanocrystals by plasma hydrogen reduction

“…Recently, much attention has been paid to the fabrication of V 2 O 3 nanocrystals and nanostructures due to their novel and interesting non-bulk like properties and phenomena [17,[27][28][29][30][31][32][33][34][35][36]. Different methods have been reported to synthesize V 2 O 3 nanocrystals such as thermal reduction [30,32,37], thermal decomposition [29,36,38,39] and hydrothermal synthesis [23,28,33].…”

“…Different methods have been reported to synthesize V 2 O 3 nanocrystals such as thermal reduction [30,32,37], thermal decomposition [29,36,38,39] and hydrothermal synthesis [23,28,33]. However, those techniques have different disadvantages, such as complicated process, unavailable to disperse nanoparticles, and expensive costs.…”