Crystalline vanadium nitride foam

摘要

An ultralight, crystalline vanadium nitride foam was formed by bubbling up oxygen gas generated spontaneously through a viscous, pasty vanadium nitride gel. The foam made of 0.5 g vanadium nitride gets bulky gradually, reaching 0.31 within 5 min after mixing the ingredients. The resultant product is a crystalline material with vanadium nitride immersed in organic surfactant. The foam-making process can be used for other metal nitrides in synthesis of new inorganic-organic frameworks.