| Title: | Boosting Toluene Combustion by Tuning Electronic Metal-Support Interactions in In Situ Grown Pt@Co(3)O(4) Catalysts |
| Author(s): | Xiao M; Yu X; Guo Y; Ge M; |
| Address: | "State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China. University of Chinese Academy of Sciences, Beijing 100049, P. R. China. Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, P. R. China" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "Electronic metal-support interaction (EMSI) has attracted great attention in volatile organic compound (VOC) abatement. Herein, Pt@Co(3)O(4) catalysts were prepared via a metal-organic framework (MOF) in situ growth approach to boost toluene degradation. The partial electron transfer from Co(3)O(4) to Pt species was induced by the EMSI effect to generate the electron-rich Pt and Co(3+) species. The electrophilic O(2) molecules could be activated by picking up the electrons from electron-rich Pt species to form nucleophilic oxygen species, which is conducive to attack C-H bonds in toluene. The redox ability and surface oxygen species activity of catalysts were improved due to strong EMSI. As expected, the excellent toluene activity was achieved, meanwhile exhibiting satisfactory water resistance and long-term stability for toluene combustion. In situ diffuse reflectance infrared Fourier transform spectroscopy results elucidated that surface lattice oxygen species should deeply participate in toluene degradation, which could be efficiently replenished by gaseous oxygen. This work may provide a new idea for exploring the relationship between the electron transfer effect and efficient catalytic performance of VOCs" |
| Keywords: | catalytic combustion electron transfer electronic metal-support interaction nucleophilic oxygen; |
| Notes: | "PubMed-not-MEDLINEXiao, Menglan Yu, Xiaolin Guo, Yucong Ge, Maofa eng Research Support, Non-U.S. Gov't 2021/12/24 Environ Sci Technol. 2022 Jan 18; 56(2):1376-1385. doi: 10.1021/acs.est.1c07016. Epub 2021 Dec 23" |
