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

Three cubic crystalline icosahedral approximants (C phase: Al 72.0 Pd 16.4 Fe 11.6 , P 40 phase: Al 72.0 Pd 16.4 Ru 11.6 , P 20 phase: Al 70.0 Pd 22.3 Ru 7.7 ) exhibit high ethylene selectivity of over 90% for hydrogenating acetylene at 150 °C. Moreover, the powdered P 20 also demonstrates a high ca...

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Bibliographic Details
Published in:RSC advances 2021-04, Vol.11 (25), p.15296-153
Main Authors: Abe, Keishi, Tsukuda, Ryota, Fujita, Nobuhisa, Kameoka, Satoshi
Format: Article
Language:English
Subjects:
Acetylene
Chemistry
Ethylene
Icosahedral phase
Iron
Ruthenium
Selectivity
Shells
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Summary:Three cubic crystalline icosahedral approximants (C phase: Al 72.0 Pd 16.4 Fe 11.6 , P 40 phase: Al 72.0 Pd 16.4 Ru 11.6 , P 20 phase: Al 70.0 Pd 22.3 Ru 7.7 ) exhibit high ethylene selectivity of over 90% for hydrogenating acetylene at 150 °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. The Al-Pd-(Ru, Fe) icosahedral approximants exhibited high catalytic ethylene selectivity and stability for semi-hydrogenation of acetylene.
ISSN:2046-2069
2046-2069
DOI:10.1039/d1ra01958a