| Title: | Fabrication of highly dispersed Pd-Mn(3)O(4) catalyst for efficient catalytic propane total oxidation |
| Author(s): | Feng C; Wang Y; Chen C; Fu X; Pan Y; Xin H; Wang Z; Lu Y; Li X; Zhang R; Liu Y; |
| Address: | "State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266580, China; Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China. Electronic address: fengchao@qibebt.ac.cn. State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266580, China. Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China. State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266580, China. Electronic address: panyuan@upc.edu.cn. State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China. State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266580, China. Electronic address: liuyq@upc.edu.cn" |
| DOI: | 10.1016/j.jcis.2023.07.076 |
| ISSN/ISBN: | 1095-7103 (Electronic) 0021-9797 (Linking) |
| Abstract: | "Adjusting the interaction between dual active components for enhancing volatile organic compounds (VOCs) degradation is an effective but still challenging means of air pollution control. Herein, a limited pyrolysis oxidation strategy was adopted to prepare Pd-Mn(3)O(4) spinel catalysts with uniform morphology and active component dispersion. Among these, 1.08Pd-Mn(3)O(4) presented the highest catalytic efficiency with a T(90) value of 240 degrees C, which was 94 degrees C lower than that of Mn(3)O(4). Characterization and density functional theory (DFT) calculation results revealed that the strong metal-support interaction (SMSI) effect between Pd and Mn(3)O(4) promoted the redistribution of surface charges, thus strengthening the oxidation-reduction ability of the active sites. Moreover, the SMSI effect led to a better migration of surface oxygen species, and boosted the generation of active surface oxygen species. Simultaneously, the Pd catalyst further reduced the energy barrier in the initial stage of the dehydrogenation of propane. Overall, this study provided a novel design strategy for dual active components catalysts with SMSI effect and extended the application of these catalysts in the important field of VOCs elimination" |
| Keywords: | Highly distribution Oxygen vacancy Pd-Mn(3)O(4) Propane oxidation Strong metal-support interaction; |
| Notes: | "PubMed-not-MEDLINEFeng, Chao Wang, Yunxia Chen, Chong Fu, Xueqing Pan, Yuan Xin, Hongchuan Wang, Zhong Lu, Yukun Li, Xuebing Zhang, Runduo Liu, Yunqi eng 2023/07/18 J Colloid Interface Sci. 2023 Nov 15; 650(Pt B):1415-1423. doi: 10.1016/j.jcis.2023.07.076. Epub 2023 Jul 16" |
