Abstract
Bulk and silica supported vanadium–chromium oxide (VCrO) catalysts with different VCrO loadings were prepared and their catalytic activity was evaluated in the ammoxidation of 3-picoline to nicotinonitrile. The silica supported catalysts had larger surface area and different active phases compared with the bulk catalyst. These differences varied the acidity and reducibility of the catalysts and finally resulted in distinction in catalytic properties. The high selectivity was confirmed to be related to the low surface density of acid sites, and the high activity coincided with the high surface area and reducibility.
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The authors thank the Natural Science Foundation of China (Nos. 21076044 and 21276050) for financial supports.
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Jiang, F., Xu, W., Niu, L. et al. Performance of Bulk and Silica Supported Vanadium–Chromium Catalysts in the Ammoxidation of 3-Picoline. Catal Lett 143, 1200–1206 (2013). https://doi.org/10.1007/s10562-013-1058-7
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DOI: https://doi.org/10.1007/s10562-013-1058-7