Yap, Taufiq Yun Hin and Goh, Chee Keong and Yuichi, Kamiya (2007) Physico-chemicals and catalytic properties of manganese-promoted vanadium phosphate (VPO) catalyst. Reaction Kinetics and Catalysis Letters, 92 (2). pp. 275-284. ISSN 0133-1736
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Official URL: http://dx.doi.org/10.1007/s11144-007-5191-4
Abstract
The addition of 1% Mn promoter to vanadium phosphate catalyst led to doubling of the specific surface area from 20.3 (unpromoted) to 39.4 m2 g−1. The XRD pattern of the Mn-promoted catalyst gave only the characteristics of the (VO)2P2O7 phase, indicating that the Mn was incorporated into the crystal lattice of the catalyst. The Mn-promoted catalyst was also twice as active in removing the total amount of oxygen. However, since the only oxygen species related to V4+ being removed and no oxygen species associated with V5+ was observed, the n-butane conversion was not much improved as compared to the unpromoted counterpart. A necessary amount and distribution of the V5+ phase in a well crystalline V4+ phase is essential in order to enhance the catalytic performance in the mild oxidation of n-butane to maleic anhydride.
| Item Type: | Article |
|---|---|
| Keyword: | Vanadium phosphate, Mn, butane oxidation, maleic anhydride |
| Faculty or Institute: | Faculty of Environmental Studies |
| Publisher: | Springerlink |
| DOI Number: | 10.1007/s11144-007-5191-4 |
| ID Code: | 7854 |
| Deposited By: | Erni Suraya Abdul Aziz |
| Deposited On: | 22 Sep 2010 16:14 |
| Last Modified: | 22 Sep 2010 16:21 |
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