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Structural and electrochemical properties of Ti–Ru–Fe–O alloys prepared by high energy ball-milling

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Abstract

The structural and electrochemical properties of the Ti–Ru–Fe–O system have been studied over the whole ternary metal compositional range, keeping constant the oxygen content at 30 at.%. The phase diagram was explored systematically by varying the composition of the material along one of the following axes: (i) constant Ru content of 16 at. %; (ii) constant Ti/Ru ratio of 2; (iii) constant Ti/Fe ratio of 1.6. For O/Ti ratios equal or below unity, the most prominent peaks observed in the x-ray diffraction patterns belong to a B2 structure. For O/Ti ratio larger than unity, stable titanium oxide phases are formed, which coexist with a cubic Fe-like or hcp-Ru like phases depending on the Fe/Ru ratio. Powder compositions with stoichiometry close to Ti2RuFeO2 are of interest due to good electrocatalytic properties, long-term stability, and low Ru content.

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Authors and Affiliations

  1. INRS-Énergie et Matériaux, 1650 Blvd. Lionel-Boulet, Varennes, Québec, J3X 1S2, Canada

    S-H. Yip & D. Guay

  2. Department of Mining and Metallurgy, Laval University, Ste-Foy, Québec, G1K 7P4, Canada

    S. Jin, E. Ghali & A. Van Neste

  3. Technologie des Matériaux, Institut de recherche d’Hydro-Québec, 1800 Blvd. Lionel-Boulet, Varennes, Québec, J3X 1S1, Canada

    R. Schulz

Authors
  1. S-H. Yip
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  2. D. Guay
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  3. S. Jin
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  4. E. Ghali
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  5. A. Van Neste
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  6. R. Schulz
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Yip, SH., Guay, D., Jin, S. et al. Structural and electrochemical properties of Ti–Ru–Fe–O alloys prepared by high energy ball-milling. Journal of Materials Research 13, 1171–1176 (1998). https://doi.org/10.1557/JMR.1998.0167

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  • DOI: https://doi.org/10.1557/JMR.1998.0167

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