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Simple vapor-solid synthesis of Zn-based intermetallic compounds

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Burkhardt,  Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Neumann,  Matthias
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Ivarsson, D. C. A., Burkhardt, U., Richter, K. W., Kriegel, R., Rossner, L., Neumann, M., et al. (2018). Simple vapor-solid synthesis of Zn-based intermetallic compounds. Journal of Alloys and Compounds, 743, 155-162. doi:10.1016/j.jallcom.2018.01.385.


Cite as: http://hdl.handle.net/21.11116/0000-0001-2286-1
Abstract
A synthesis route to ZnPd, ZnPt and Cu5Zn8 based on a vapor-solid reaction of stoichiometric amounts of the elements is presented. The high vapor pressure of zinc, usually hindering a controlled synthesis, forms part of the developed synthesis strategy with a focus on the catalytically active intermetallic compound ZnPd. The method provides excellent compositional control of better than 0.1 at% and results in dense samples without requiring detailed knowledge of the corresponding thermodynamics. Utilizing the well-defined ZnPd samples, the bulk defect model as well as the reducibility of surface oxides was clarified. The well-controlled synthesis route creates new opportunities for exploring the reaction kinetics and formation processes of intermetallic compounds. (c) 2018 Elsevier B.V. All rights reserved.