CeO2 Modified Mn-Fe-O Composites and their Catalytic Performance for NH3-SCR of NO

Xiubing HUANG; Peng WANG; Jinzhang TAO; Zuoshuai XI

doi:10.15541/jim20190266

Journals >Journal of Inorganic Materials >Volume 35 >Issue 5 >Page 573 > Article

Journal of Inorganic Materials
Vol. 35, Issue 5, 573 (2020)

CeO₂ Modified Mn-Fe-O Composites and their Catalytic Performance for NH₃-SCR of NO

Xiubing HUANG¹, Peng WANG¹, Jinzhang TAO², and Zuoshuai XI¹

Author Affiliations

¹School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

²Guangdong Provincial Key Laboratory of Rare Earth Development and Application, Guangzhou 510310, China

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DOI: 10.15541/jim20190266 Cite this Article

Xiubing HUANG, Peng WANG, Jinzhang TAO, Zuoshuai XI. CeO₂ Modified Mn-Fe-O Composites and their Catalytic Performance for NH₃-SCR of NO[J]. Journal of Inorganic Materials, 2020, 35(5): 573 Copy Citation Text

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1. XRD patterns of the composites

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2. SEM images of Ce(x)/Mn-Fe-O

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3. N₂ adsorption-desorption curves of catalysts

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4. Raman spectra of samples Mn-Fe-O and Ce(0.1)/Mn-Fe-O

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5. XPS spectra of samples Mn-Fe-O and Ce(0.1)/Mn-Fe-O

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6. (a) H₂-TPR and (b) NH₃-TPD curves of Mn-Fe-O and Ce(0.1)/Mn-Fe-O

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7. Catalytic activity toward NH₃-SCR of NO over different catalysts

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8. SO₂ and H₂O step response experiments for Ce(0.1)/ Mn-Fe-O

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Sample	Surface area/(m²·g^-1)	Pore volume/(cm³·g^-1)	Average pore size/nm
Mn-Fe-O	148.08	0.302	8.92
Ce(0.01)/Mn-Fe-O	145.42	0.290	7.82
Ce(0.05)/Mn-Fe-O	142.39	0.265	7.45
Ce(0.1)/Mn-Fe-O	142.31	0.262	7.36
Ce(0.3)/Mn-Fe-O	142.71	0.255	7.14

Table 1. Structure properties of Ce(x)/Mn-Fe-O

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Sample	Ce : Mn : Femolar ratio	Surface atomic content/%
Sample	Ce : Mn : Femolar ratio	Fe²⁺	Fe³⁺	Mn²⁺	Mn³⁺	Mn⁴⁺	Ce³⁺	Ce⁴⁺
Mn-Fe-O	0 : 1.00 : 2.02	39	61	24	41	35	-	-
Ce(0.01)/Mn-Fe-O	0.01 : 1 : 2.02	35	65	20	42	38	19	81
Ce(0.05)/Mn-Fe-O	0.08 : 1 : 2.02	29	71	20	45	35	18	82
Ce(0.1)/Mn-Fe-O	0.17 : 1 : 2.02	30	70	17	45	38	19	81
Ce(0.3)/Mn-Fe-O	0.43 : 1 : 2.02	32	68	26	43	31	17	83

Table 2. Surface atomic content of Ce(x)/Mn-Fe-O composites

Xiubing HUANG, Peng WANG, Jinzhang TAO, Zuoshuai XI. CeO₂ Modified Mn-Fe-O Composites and their Catalytic Performance for NH₃-SCR of NO[J]. Journal of Inorganic Materials, 2020, 35(5): 573

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