Efficient Formaldehyde Elimination Over Ag/MnO2 Nanorods: Influence of the Ag Loading
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A series of Ag/MnO2 nanorods with various loading amounts of Ag were fabricated and used for formaldehyde (HCHO) elimination. The obtained catalysts were characterized by means of N2 adsorption–desorption, SEM, TEM, XRD, H2-TPR, O2-TPD and XPS. As the optimal loading amount of Ag was 0.1%, the Ag/MnO2-r exhibited a superior catalytic performance for HCHO oxidation, on which the 100% conversion of HCHO was achieved at 80 °C. It has observed that the remarkable catalytic activity of 0.1% Ag/MnO2-r was mainly due to the better low-temperature reducibility and more abundant surface active oxygen species resulting from the strong metal-support interaction between Ag and MnO2.
KeywordsFormaldehyde Catalytic oxidation Ag Nanorod MnO2
This work was sponsored financially by the College Students’ Innovative Entrepreneurial Training Program of Xi’an Shiyou University and Shaan xi Province (Nos. YCS17221013 and 2017107051486), the Science & Technology Plan Project of Xi’an City (No. 2017081CG/RC044 (XASY006)), Scientific Research Program Funded by Shaanxi Provincial Education Department (No. 17JK0608), Young Talent fund of University Association for Science and Technology in Shaanxi (20180604) and the National Nature Science Foundation of China (No. 21606177).
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