Abstract
A series of Co3O4–CeO2 supported Ag catalysts were prepared by different methods and the catalytic properties of these catalysts were investigated for the catalytic removal of formaldehyde (HCHO). The Ag/Co3O4–CeO2–H catalyst calcined in a O2/N2 flow and then reduced in a H2/N2 stream exhibited excellent catalytic activity, over which 100% HCHO conversion was achieved at a temperature as low as 60 °C. In addition, the Ag/Co3O4–CeO2–H catalyst also displayed high stability in lifetime testing. Based on a variety of physical–chemical characterization results, it is demonstrated that the larger specific area, easier reducibility and abundant active surface oxygen species served as essential roles in the catalytic removal of HCHO for Ag/Co3O4–CeO2–H catalyst.
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This work was sponsored financially by the College Students’ Innovative Entrepreneurial Training Program of Xi’an Shiyou University and Shaan xi Province (No. 201610705027 and 2017107051486), the Science & Technology Plan Project of Xi’an City (No. 2017081CG/RC044 (XASY006)), the Special Scientific Research of Shaan xi Educational Committee (No. 17JK0608) and the National Nature Science Foundation of China (No. 21606177).
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Lu, S., Chen, C., Wang, X. et al. Efficient Catalytic Removal of Formaldehyde over Ag/Co3O4–CeO2 Prepared by Different Method. Catal Surv Asia 22, 63–71 (2018). https://doi.org/10.1007/s10563-018-9240-y
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DOI: https://doi.org/10.1007/s10563-018-9240-y