A Cheap Gas–Liquid–Solid Method for Nanodeposition of Iron on the Surface of Flaky Graphite Powder.

A cheap gas–liquid–solid method to prepare a nanodeposition of iron on the surface of a micrometer-size flaky graphite powder is described. This method is suited not only for spherical, but also nonspherical small substrates. The method is only a one-step process, in which decomposition of iron pentacarbonyl is induced by nitrogen gas in a 90 °C reactor. This synthetic route simplifies the operation procedure and manufacturing equipment, and decreases the reaction temperature, compared with conventional liquid–solid-phase methods and gas–solid-phase methods. [ABSTRACT FROM AUTHOR]