title: Wet chemical synthesis and a combined X-ray and Mössbauer study of the formation of FeSb2 nanoparticles.
abstract: Understanding how solids form is a challenging task, and few strategies allow for elucidation of reaction pathways that are useful for designing the synthesis of solids. Here, we report a powerful solution-mediated approach for formation of nanocrystals of the thermoelectrically promising FeSb(2) that uses activated metal nanoparticles as precursors. The small particle size of the reactants ensures minimum diffusion paths, low activation barriers, and low reaction temperatures, thereby eliminating solid-solid diffusion as the rate-limiting step in conventional bulk-scale solid-state synthesis. A time- and temperature-dependent study of formation of nanoparticular FeSb(2) by X-ray powder diffraction and iron-57 Mössbauer spectroscopy showed the incipient formation of the binary phase in the temperature range of 200-250 °C.
authors: Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55099 Mainz, Germany.
authors: Christina S
authors: CS
authors: Birkel
authors: Gregor
authors: G
authors: Kieslich
authors: Dimitrios
authors: D
authors: Bessas
authors: Tania
authors: T
authors: Claudio
authors: Robert
authors: R
authors: Branscheid
authors: Ute
authors: U
authors: Kolb
authors: Martin
authors: M
authors: Panthöfer
authors: Raphaël P
authors: RP
authors: Hermann
authors: Wolfgang
authors: W
authors: Tremel