Hollow, porous, spherical metal-carbon composite particles, having nanostructures, are prepared from suitable precursor solutions containing metal-organic ligand coordination complexes with template. Such precursors may be made for each elemental metal to be in the spherical particles. The precursor solution is atomized as an aerosol in an inert gas stream and the aerosol stream heated to decompose the organic ligand portion of the precursor leaving the spherical metal-carbon composite or metal alloy-carbon composite particles. The organic ligand serves as a structure directing agent in the shaping of the spherical particles after the ligand has been removed. Other materials may also be used as permanent or removed templates. The morphology of the particles may be altered for an application by varying the preparation and composition of the metal precursor material, and the optional use of a template.
制备具有纳米结构的中空、多孔、球形
金属-碳复合颗粒,从含有
金属有机配位配合物和模板的适当前体溶液中制备。这样的前体可以为要制备的每种元素
金属制备。前体溶液在惰性气体流中雾化成气溶胶,气溶胶流加热以分解前体的有机
配体部分,留下球形
金属-碳复合或
金属合
金-碳复合颗粒。有机
配体在去除后,在球形颗粒的成型中作为结构定向剂。其他材料也可以用作永久或去除的模板。通过改变
金属前体材料的制备和组成,以及可选使用模板,可以改变颗粒的形态以适用于不同的应用。