The Active Sites of the Reference Phase of SmVO4 as Catalyst for Propane Oxidative Dehydrogenation

Chemical Research in Chinese Universities ›› 1998, Vol. 14 ›› Issue (3): 294-296.

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The Active Sites of the Reference Phase of SmVO₄ as Catalyst for Propane Oxidative Dehydrogenation

ZHANG Wei-de¹, AU Chak-tong², LI Ji-tao¹, WAN Hui-lin¹

1. Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005;
2. Department of Chemistry, Hong Kong Baptist Univer

Received:1996-05-27 Online:1998-08-24 Published:2011-08-17
Supported by:
Supportedbythe National Nature Sciences Foundationo f China.

Abstract

Abstract: The active sites of samarium orthovanadate(SmVO₄) were studied by means of ESR, NO TPD and temperature programmed ¹⁸O ₂-isotope exchange(TPIE) methods. The results of ESR and NO-TPD confirm the presence of V⁴⁺ in the catalyst. The TPIE revealed that the ¹⁸O ₂-isotope exchange was carried out through a single exchange procedure. The V⁴⁺ species associated with oxygen vacancies are the sites for O₂ activation.

Key words: Samarium orthovanadate, Active site, V⁴⁺ species, Oxidative dehydrogenation

ZHANG Wei-de, AU Chak-tong, LI Ji-tao, WAN Hui-lin . The Active Sites of the Reference Phase of SmVO₄ as Catalyst for Propane Oxidative Dehydrogenation[J]. Chemical Research in Chinese Universities, 1998, 14(3): 294-296.

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The Active Sites of the Reference Phase of SmVO₄ as Catalyst for Propane Oxidative Dehydrogenation

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