The reduction behaviour and the phase composition of platinum-chromium samples (unsupported and on alumina carrier) were investigated with the help of temperature-programmed reduction (TPR), X-ray diffraction, ferromagnetic resonance (FMR) spectroscopy and ethane hydrogenolysis. Co-reduction and the formation of alloys was found to occur when H2PtCl6 and (CrO3)x were used as starting materials. Annealing of the samples above 500°C led to the formation of a ferromagnetic Pt3Cr superlattice. Addition of chromium to platinum/alumina attenuates the hydrogenolysis activity; annealing results in an additional strong decrease of this demanding reaction. © 1989.
CITATION STYLE
Engels, S., Lausch, H., Peplinski, B., Wilde, M., Mörke, W., & Kraak, P. (1989). The state of metallic phase in alumina-supported platinum-chromium catalysts. Applied Catalysis, 55(1), 93–107. https://doi.org/10.1016/S0166-9834(00)82320-9
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