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Citation: Zhang Xiao-Xin, Ma Ai-Zeng, Mu Xu-Hong, Min En-Ze, Huang Xiao-Xi, Wang Rong. Structure Characterization of the Supported Amorphous Ni-B/SiO₂ Catalysts[J]. Acta Physico-Chimica Sinica, ;2000, 16(02): 180-183. doi: 10.3866/PKU.WHXB20000216 shu

Structure Characterization of the Supported Amorphous Ni-B/SiO₂ Catalysts

1.
Research Institute of Petroleum Processing,Beijing 100083;University of Science Technology Beijing,Beijing 100083

Received Date: 29 March 1999
Available Online: 15 February 2000

Amorphous Ni-B/SiO2 catalysts were prepared by chemical reduction of Ni2＋with KBH4. ICP was used to analyze the composition of alloys. XRD,TEM,SAED and HREM were used to examine the structures of samples fresh and after thermal treatment in different atmospheres. The results indicated that the supported NiB has a higher structural stability than ultrafine NiB amorphous alloy. Low temperature pretreatment in hydrogen can reduce nickel oxide on the surface of catalysts. However, treatment in hydrogen is more favorable than in atmosphere and nitrogen for keeping it in stable state.
- Ni-B amorphous catalyst,
- Crystallization,
- Structure characterization
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沈阳化工大学材料科学与工程学院沈阳 110142

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Structure Characterization of the Supported Amorphous Ni-B/SiO2 Catalysts

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通讯作者: 陈斌, bchen63@163.com

Structure Characterization of the Supported Amorphous Ni-B/SiO₂ Catalysts