A flame metal combustion method for production of nanoparticles

We propose a flame metal combustion method for continuously synthesizing metal oxide nanoparticles. Micro-sized metal powder precursors were injected into a hydrogen–oxygen flame through a newly designed feeder system in order to be completely converted into metal oxide nanoparticles with good crystallinity. There is no limitation in the selection of precursors including metal, metal chloride and metal organic powders to synthesize nanoparticles. Various oxides such as magnesia, iron oxides and zinc oxide were demonstrated to be successfully generated by using this method. The sizes of oxide nanoparticles were controlled by varying flame temperatures and residence times.

We propose a flame metal combustion method for continuously synthesizing metal oxide nanoparticles. Micro-sized metal powders were injected into a hydrogen–oxygen flame through a newly designed feeder system to be completely converted into metal oxide nanoparticles with good crystallinity. The sizes of oxide nanoparticles were controlled by varying flame temperatures and residence times.Figure optionsDownload as PowerPoint slide