引用本文:
姚凯文, 范以宁, 匡文兴, 陈懿. 钴系非晶合金超细微粒金属微观状态的研究[J]. 物理化学学报,
1996, 12(10): 954-956.
doi:
10.3866/PKU.WHXB19961021
Citation: Yao Kai-Wen, Fan Yi-Ning, Kuang Wen-Xing, Chen Yi. Study on Metallic States of Co-based Ultrafine Amorphous Alloy Particles[J]. Acta Physico-Chimica Sinica, 1996, 12(10): 954-956. doi: 10.3866/PKU.WHXB19961021
Citation: Yao Kai-Wen, Fan Yi-Ning, Kuang Wen-Xing, Chen Yi. Study on Metallic States of Co-based Ultrafine Amorphous Alloy Particles[J]. Acta Physico-Chimica Sinica, 1996, 12(10): 954-956. doi: 10.3866/PKU.WHXB19961021
English
Study on Metallic States of Co-based Ultrafine Amorphous Alloy Particles
Abstract:
The metallic states of ultrafine amorphous alloy particles CoB, CoPB and Co metal were studied by using ICP, XPS and ethylene hydrogenation reaction test. It is shown that Co component on surface of CoB and CoPB amorphous alloy particles is in electron-deficient state, which leads to the increase of irreversible absorption of ethylene, and results in the decrease of the active site number. Hence the catalytic activity of CoB and CoPB catalysts for ethylene hydrogenation is lower than that of metallic Co.
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Key words:
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Ultrafine particles
- / Amorphous state
- / Co-based alloy
- / Ethylene hydrogenation
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