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首页> 外文期刊>Catalysis science & technology >Locating Fe dopants in catalytic PtPd nanoparticles on γ-alumina using X-ray absorption spectroscopy
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Locating Fe dopants in catalytic PtPd nanoparticles on γ-alumina using X-ray absorption spectroscopy

机译:在催化PtPd定位铁掺杂物纳米粒子在γ氧化铝使用x射线吸收光谱学

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摘要

Addition of Fe to PtPd nanoparticles on γ-alumina is known to increase catalytic activity. This is shown to stem from increased Pt–Pd coordination during thermal aging which induces microstrain. X-ray absorption spectroscopy analysis reveals that the Fe dopant atoms are incorporated into the alumina surface, which fine tunes the electronic state and provides greater oxidation resistance to Pt.
机译:增加铁PtPd纳米颗粒在γ氧化铝众所周知,增加催化活性。源于Pt-Pd增加协调在热老化导致微应变。x光吸收光谱分析显示铁掺杂剂原子被纳入氧化铝表面,好音乐电子态,并提供更大的氧化抵抗Pt。

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