| Title: | Engineering the Nucleophilic Active Oxygen Species in CuTiO(x) for Efficient Low-Temperature Propene Combustion |
| Author(s): | Fang Y; Li L; Yang J; Hoang S; Wang L; Xu J; Yang W; Pan C; Zhu Y; Deng H; Luo Z; Sun C; Gao D; Li Z; Guo Y; |
| Address: | "Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China. CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China. College of Chemistry, Chemical Engineering and Materials Science, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P. R. China. Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000 Gansu, P. R. China. National Engineering Laboratory for Mobile Source Emission Control Technology, China Automotive Technology & Research Center Co., Ltd, Tianjin 300300, China" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "Industrialization has resulted in the rapid increase of volatile organic compound (VOC) emissions, which have caused serious issues to human health and the environment. In this study, an extensive Cu incorporating TiO(2) induced nucleophilic oxygen structure was constructed in the CuTiO(x) catalyst, which exhibited superior low-temperature catalytic activity for C(3)H(6) combustion. Thorough structural, surface characterization and density functional theory (DFT) calculations revealed that the Cu-O-Ti hybridization induced nucleophilic oxygen initiates C(3)H(6) combustion by abstracting the C-H bond. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) results indicated that incorporated copper species acted as the major adsorbent site for the propene molecule. In combination of the DRIFTS and DFT results, the promotion effect of the nucleophilic O on the C-H bond abstraction and CO(2) formation pathway was proposed. The surface doping induced nucleophilic oxygen as strong Bronsted basic sites for low-temperature propene combustion exemplified an efficient strategy for rational design of next-generation environmental catalysts" |
| Keywords: | Alkenes Catalysis Humans Oxidation-Reduction *Reactive Oxygen Species Temperature C3H6 combustion Cu-O-Ti hybridization H abstraction nucleophilic O; |
| Notes: | "MedlineFang, Yarong Li, Li Yang, Ji Hoang, Son Wang, Liming Xu, Jue Yang, Weiwei Pan, Chuanqi Zhu, Yuhua Deng, Hongtao Luo, Zhu Sun, Chuanzhi Gao, Daqiang Li, Zhenguo Guo, Yanbing eng Research Support, Non-U.S. Gov't 2020/11/07 Environ Sci Technol. 2020 Dec 1; 54(23):15476-15488. doi: 10.1021/acs.est.0c05845. Epub 2020 Nov 6" |
