ao6b00299_si_001.pdf (1.59 MB)
Heusler Alloys: A Group of Novel Catalysts
journal contribution
posted on 2017-01-31, 00:00 authored by Takayuki Kojima, Satoshi Kameoka, An-Pang TsaiIn
this study, we investigated the catalytic properties of various
Heusler alloys for the hydrogenation of propyne and the oxidation
of carbon monoxide. For propyne hydrogenation, Co2FeGe
alloy showed a higher activity than that of elemental Co, where neither
Fe nor Ge showed any activity. This clearly indicates an alloying
effect. For the oxidation of carbon monoxide, although most alloys
showed a significant change in catalytic activity during measurement
due to an irreversible oxidation of the alloy, Co2TiSn
alloy showed a very small change. The results indicate that the catalytic
activity and stability of a Heusler alloy can be tuned by employing
an appropriate set of elements.