Abstract
Abstract Mn x Co 3 − x O 4 solid solution was synthesized by co-precipitation method and tested for the first time for oxidation of HCHO. The formation of Mn x Co 3 − x O 4 solid solution was confirmed by XRD, H 2 -TPR, XPS studies. It was observed that complete conversion of HCHO occurred at 75 °C (GHSV = 60,000 h − 1 , relative humidity = 50% (25 °C)), and remained unchanged within 50 h. Such high activity can be ascribed to the large amount of surface oxygen available on Mn x Co 3 − x O 4 . According to the results of in situ DRIFTs, we proposed a reaction pathway for HCHO oxidation over Mn x Co 3 − x O 4 catalyst.
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