Preparation of catalyst as Au doped Mn1Co9Ox/ceramic system for total oxidation of CO

Pham Thi Mai Phuong; Hoan Nguyen Quoc; Quan Do Quoc; Hung Nguyen Thanh

doi:10.51316/jca.2021.066

Authors

Phuong Pham Thi Mai Advanced Institue of Science and Technology, Hanoi University of Science and Technology Author
Hoan Nguyen Quoc Labour and Environmental Protection Center, Viet Nam National Institude of Occupational Safety and Health Author
Quan Do Quoc School of Chemical Engineering, Hanoi University of Science and Technology, Vietnam Author
Hung Nguyen Thanh School of Chemical Engineering, Hanoi University of Science and Technology, Vietnam Author

DOI:

https://doi.org/10.51316/jca.2021.066

Keywords:

CO Oxidation, Au doped MnCoOx, Sol-gel, Wet impregnation

Abstract

In this paper, the Au doped Mn₁Co₉O_x was investigated for total oxidation of CO. The sol-gel method was applied to prepare this catalyst and some modern analysis methods as XRD, EPR, TPx, SEM were utilized to characterize its properties. The XRD patterns showed only Co₃O₄ phase without any peaks belonging to Mn or Au. However, the presence of Au and Mn was confirmed by EPR and O₂-TPD results. With the aim to further apply catalyst in reality, the Au doped Mn₁Co₉O_x was deposited on ceramic by sol-gel, wet impregnation. The SEM images displayed the successful coating of active phase on substrate. However, the complete catalyst system didn’t have the high activity in total CO oxidation like the catalyst powder because of large agglomerations on coatings.

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