TY  - JOUR
AU  - Tang, Tian
AU  - Ye, Lyumeng
AU  - Chen, Yanrong
AU  - Xue, Jingyu
AU  - Shen, Xiaoqiang
AU  - Chen, Jinfei
AU  - Quarcoo, Fiona Hammond
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Li, Xinbao
AU  - Du, Xuesen
PY  - 2024
UR  - https://www.sciencedirect.com/science/article/pii/S0926337323010111
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6464
AB  - The unique interface synergistic catalytic properties for metal oxide-supported catalysts have long been explored in several critical heterogeneous catalytic processes (e.g., CO oxidation reactions). However, interfacial synergistic catalysis is still a hitherto undescribed mechanism due to the lack of direct evidence at the atomic level. Thereinto, the CuOx-supported CeO2 (CuOx/CeO2) catalyst is a typical case. Herein, a combination study including representative theoretical calculations, in situ DRIFTS spectra and tailored molecular probe experiments supports a new carbonate-interface mediated Mars-van Krevelen (M−vK) mechanism for CO oxidation, i.e., CO molecules form carbonate intermediate species directly between spatial proximity (2.99 Å) double lattice oxygen sites with low oxygen vacancies formation energy (EformOv = 0.82 eV/0.83 eV) at the copper−ceria interface. The reaction energy barrier of this process is 0.32 eV, much lower than the 1.23 eV of the conventional M−vK mechanism. Besides, the spatial effect of double oxygen vacancies (Ov) generated by the depletion of intermediate carbonate species promotes the sustained and dynamic activation of O2, hence facilitating the efficient operation of the M−vK mechanism at low temperatures.
T2  - Applied Catalysis B: Environmental
T2  - Applied Catalysis B: EnvironmentalApplied Catalysis B: Environmental
T1  - Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts
SP  - 123368
VL  - 342
DO  - 10.1016/j.apcatb.2023.123368
ER  - 

@article{
author = "Tang, Tian and Ye, Lyumeng and Chen, Yanrong and Xue, Jingyu and Shen, Xiaoqiang and Chen, Jinfei and Quarcoo, Fiona Hammond and Rac, Vladislav and Rakić, Vesna and Li, Xinbao and Du, Xuesen",
year = "2024",
abstract = "The unique interface synergistic catalytic properties for metal oxide-supported catalysts have long been explored in several critical heterogeneous catalytic processes (e.g., CO oxidation reactions). However, interfacial synergistic catalysis is still a hitherto undescribed mechanism due to the lack of direct evidence at the atomic level. Thereinto, the CuOx-supported CeO2 (CuOx/CeO2) catalyst is a typical case. Herein, a combination study including representative theoretical calculations, in situ DRIFTS spectra and tailored molecular probe experiments supports a new carbonate-interface mediated Mars-van Krevelen (M−vK) mechanism for CO oxidation, i.e., CO molecules form carbonate intermediate species directly between spatial proximity (2.99 Å) double lattice oxygen sites with low oxygen vacancies formation energy (EformOv = 0.82 eV/0.83 eV) at the copper−ceria interface. The reaction energy barrier of this process is 0.32 eV, much lower than the 1.23 eV of the conventional M−vK mechanism. Besides, the spatial effect of double oxygen vacancies (Ov) generated by the depletion of intermediate carbonate species promotes the sustained and dynamic activation of O2, hence facilitating the efficient operation of the M−vK mechanism at low temperatures.",
journal = "Applied Catalysis B: Environmental, Applied Catalysis B: EnvironmentalApplied Catalysis B: Environmental",
title = "Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts",
pages = "123368",
volume = "342",
doi = "10.1016/j.apcatb.2023.123368"
}

Tang, T., Ye, L., Chen, Y., Xue, J., Shen, X., Chen, J., Quarcoo, F. H., Rac, V., Rakić, V., Li, X.,& Du, X.. (2024). Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts. in Applied Catalysis B: Environmental, 342, 123368.
https://doi.org/10.1016/j.apcatb.2023.123368

Tang T, Ye L, Chen Y, Xue J, Shen X, Chen J, Quarcoo FH, Rac V, Rakić V, Li X, Du X. Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts. in Applied Catalysis B: Environmental. 2024;342:123368.
doi:10.1016/j.apcatb.2023.123368 .

Tang, Tian, Ye, Lyumeng, Chen, Yanrong, Xue, Jingyu, Shen, Xiaoqiang, Chen, Jinfei, Quarcoo, Fiona Hammond, Rac, Vladislav, Rakić, Vesna, Li, Xinbao, Du, Xuesen, "Diving into the interface-mediated Mars-van Krevelen (M−vK) characteristic of CuOx-supported CeO2 catalysts" in Applied Catalysis B: Environmental, 342 (2024):123368,
https://doi.org/10.1016/j.apcatb.2023.123368 . .