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

Keishi Abe; Ryota Tsukuda; Nobuhisa Fujita; Satoshi Kameoka

doi:10.1039/d1ra01958a

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

RSC Adv. 2021 Apr 23;11(25):15296-15300. doi: 10.1039/d1ra01958a. eCollection 2021 Apr 21.

Authors

Keishi Abe^{1

2}, Ryota Tsukuda^{1

2}, Nobuhisa Fujita², Satoshi Kameoka²

Affiliations

¹ Department of Materials Processing, Graduate School of Engineering, Tohoku University Sendai 980-8579 Japan.
² Institute of Multidisciplinary Research for Advanced Materials, Tohoku University Sendai 980-8577 Japan satoshi.kameoka.b4@tohoku.ac.jp.

Abstract

Three cubic crystalline icosahedral approximants (C phase: Al_72.0Pd_16.4Fe_11.6, P₄₀ phase: Al_72.0Pd_16.4Ru_11.6, P₂₀ phase: Al_70.0Pd_22.3Ru_7.7) exhibit high ethylene selectivity of over 90% for hydrogenating acetylene at 150 °C. Moreover, the powdered P₂₀ 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.