4.6 Article

High catalytic performance of Al-Pd-(Ru, Fe) icosahedral approximants for acetylene semi-hydrogenation

Journal

RSC ADVANCES
Volume 11, Issue 25, Pages 15296-15300

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ra01958a

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Funding

  1. JSPS KAKENHI [JP19H05819, JP19H05821]

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The three cubic crystalline icosahedral approximants in the Al-Pd-(Ru, Fe) systems exhibit high ethylene selectivity and catalytic performance for hydrogenating acetylene, showing promise as a novel class of alloy catalysts.
Three cubic crystalline icosahedral approximants (C phase: Al72.0Pd16.4Fe11.6, P-40 phase: Al72.0Pd16.4Ru11.6, P-20 phase: Al70.0Pd22.3Ru7.7) exhibit high ethylene selectivity of over 90% for hydrogenating acetylene at 150 degrees C. Moreover, the powdered P-20 also demonstrates a high catalytic performance under an industry-like ethylene feed containing 0.5% acetylene as an impurity. Overall, icosahedral approximants in the Al-Pd-(Ru, Fe) systems are promising as a novel class of alloy catalysts.

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