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Citation: Sheng Chun, Zhou Shi-Yao, Li He-Xing, Deng Jing-Fa. The Crystallization Process and the Hydrogenation Activity of Ni-P/SiO₂ Catalyst[J]. Acta Physico-Chimica Sinica, ;1998, 14(02): 164-168. doi: 10.3866/PKU.WHXB19980213 shu

The Crystallization Process and the Hydrogenation Activity of Ni-P/SiO₂ Catalyst

1.
Experimental Center,Shanghai Normal University,Shanghai 200234

Received Date: 3 June 1997
Available Online: 15 February 1998

The Ni-P amorphous alloy support on SiO2 (Ni-P/SiO2) was prepared by chemical reduction with NaH2PO2. The amorphous structure of the as-prepared sample was determined by XRD in which a broad peak around 2θ= 45℃ was observed. It's crystallization process was carried out by heating the sample at 350℃ and 600℃ in N2 flow for 2 hours, respectively. The as-prepared catalyst before and after crystallization was characterized by ICP, BET, XRD, XPS and SEM. The change of its catalytic activity before and after crystallization was measured through the liquid benzaldehyde(BA ) hydrogenation in term of the hydrogen uptake rate per gram or per area of nickel or the conversion of BA and TOF values. The change was discussed according to the above characterizations.
- Ni-P/SiO₂ amorphous catalyst,
- Benzaldehyde,
- Catalytic hydrogenation,
- Crystallization
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The Crystallization Process and the Hydrogenation Activity of Ni-P/SiO2 Catalyst

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通讯作者: 陈斌, bchen63@163.com

The Crystallization Process and the Hydrogenation Activity of Ni-P/SiO₂ Catalyst