Abstract
A series of ceria supported vanadium incorporated ammonium salt of 12-molybdophosphoric acid (AMPV) catalysts were synthesized in a single-step by generating Keggin structure in situ. These catalysts were characterized by X-ray diffraction, FT-infrared, BET surface area, thermal analysis (TG/DTA) temperature programed reaction and acidity by potentiometric titration. The catalytic activities of these catalysts were tested for the vapor phase ammoxidation of 2-methylpyrazine to 2-cyanopyrazine. The CeO2 supported AMPV catalysts are more active and selective compared to other supports. The high activity and selectivity of these catalysts are related to the presence of both redox vanadium and oxygen storage release function of ceria.
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Acknowledgments
KMR thanks to CSIR, New Delhi for the SRF fellowship. The authors acknowledged to DST, New Delhi, for the financial support under their SERC scheme, DST No. SP/S1/H-25/2001.
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Mohan Reddy, K., Lingaiah, N., Rao, P.S.N. et al. Studies on Ceria Supported Vanadium Incorporated Ammonium Salt of 12-Molybdophosphoric Acid Catalysts. Catal Lett 130, 154–160 (2009). https://doi.org/10.1007/s10562-009-9842-0
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DOI: https://doi.org/10.1007/s10562-009-9842-0