Fe‐Ce Composite Oxide Catalysts Supported on 3D Nickel Foam for Catalytic Oxidation of Soot. Issue 37 (4th October 2022)

• Record Type: Journal Article
• Authors: Wang, Xie; Wei, Kun; Xu, Kaixuan; Shi, Liming; Xue, Zhifeng; Wang, Huan; Jiang, Caihong; Wang, Junwei; Zhang, Xianlong
• Is Part Of: ChemistrySelect. Volume 7:Issue 37(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-10-04
• Subjects: Fe−Ce composite oxide -- Hydrothermal reaction -- Impregnation method -- Nickel foam -- Soot oxidation; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.202202019
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: To reduce the combustion temperature of diesel soot, the Fe−Ce composite oxide catalysts with varying composition supported by three‐dimensional nickel foams were prepared by hydrothermal reaction and impregnation method. The internal structure and performance of the monolithic catalysts were characterized by X‐ray diffraction, Raman, scanning electron microscope, X‐ray photoelectron spectroscopy and catalyst activity evaluation techniques. The results revealed that when the molar ratio of Ce and Fe was 0.5, the CeO2 /Fe2 O3 @NF catalyst showed the best catalytic activity of soot oxidation, good stability and water resistance. Besides, the addition of NO and H2 O was helpful to improve the catalytic performance for soot oxidation, when 10 % H2 O and 800 ppm NO were mixed into 20 %O2 /N2 atmosphere, the T10, T50 and T90 values could decrease to 299 °C, 344 °C and 389 °C, respectively. Abstract : In the present work, we provide an effective strategy to prepare monolithic Fe−Ce composite oxide catalysts, and the T10, T50 and T90 can respectively decrease to 299 °C, 344 °C and 389 °C under the optimal reaction condition. Hence, it seems promising for the removal of soot particles in practical application.