%0 Journal Article
%A Birkel, C. S.
%A Kieslich, G.
%A Bessas, D.
%A Claudio, T.
%A Branscheid, R.
%A Kolb, U.
%A Panthöfer, M.
%A Hermann, R.
%A Tremel, W.
%T Wet chemical synthesis and a combined x-ray and Mössbauer study of the formation of FeSb2 nanoparticles
%J Inorganic chemistry
%V 50
%@ 0020-1669
%C Washington, DC
%I American Chemical Society
%M PreJuSER-18811
%P 11807 - 11812
%D 2011
%Z The DFG priority program SPP1386 "Nanostructured Thermoelectrics" is acknowledged for support of this study. C.S.B. and G.K. are recipients of a fellowship from MATCOR, the Graduate School of Excellence of the State of Rhineland-Palatinate. G.K. is a recipient of a fellowship from the Konrad Adenauer Stiftung. R. H. acknowledges support for the Helmholtz-University Young Investigator Group "Lattices Dynamics in Emerging Functional Materials".
%X 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.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:22004092
%U <Go to ISI:>//WOS:000296830400064
%R 10.1021/ic201940r
%U https://juser.fz-juelich.de/record/18811