A route to prepare nitrides, such as GaN, VN, and other nitrides, is reported. The reaction pathway involves a two-step process by using the as-synthesized a-C3N3.69 as precursor. The route is so potent that a series of nitrides can be directly synthesized from their oxides at moderate temperatures. A striking feature of this method lies in that a-C3N3.69 is found to play double roles as both c...

Ultra-fine Ta 4 HfC 5 and TaHfC 2 powders were prepared through the pyrolysis of a precursor synthesised by using facile one-pot reaction. HfCl , TaCl phenolic resins used as sources hafnium (Hf), tantalum (Ta), carbon (C), respectively. The as-synthesised precursors further utilised to prepare - -modified carbon/carbon (C/C-Ta C/C-TaHfC ) composites infiltration pyrolysis. transformation into ...