Citation: Xuehui Huang, Pengju Niu, Xiaohui Shang. Low temperature molten salt synthesis of porous La_1-xSr_xMn_0.8Fe_0.2O₃ (0 ≤ x ≤ 0.6) microspheres with high catalytic activity for CO oxidation[J]. Chinese Journal of Catalysis, ;2016, 37(8): 1431-1439. doi: 10.1016/S1872-2067(16)62502-0 shu

Low temperature molten salt synthesis of porous La_1-xSr_xMn_0.8Fe_0.2O₃ (0 ≤ x ≤ 0.6) microspheres with high catalytic activity for CO oxidation

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China

Received Date: 12 May 2016
Revised Date: 28 June 2016

Fund Project: This work was supported by the National Science Foundation for Young Scientists of China (51202171).

A molten salt method was developed to prepare porous La_1-xSr_xMn_0.8Fe_0.2O₃ (0 ≤ x ≤ 0.6) microspheres using hierarchical porous δ-MnO₂ microspheres as a template in eutectic NaNO₃-KNO₃. X-ray diffraction patterns showed that single phase LaMn_0.8Fe_0.2O₃ with good crystallinity was synthesized at 450 ℃ after 4 h. Transmission electron microscope images exhibited that the LaMn_0.8Fe_0.2O₃ sample obtained at 450 ℃ after 4 h possessed a porous spherical morphology composed of aggregated nanocrystallites. Field emission scanning electron microscope images indicated that the growth of the porous LaMn_0.8Fe_0.2O₃ microspheres has two stages. SEM pictures showed that a higher calcination temperature than 450 ℃ had an adverse effect on the formation of a porous spherical structure. The LaMn_0.8Fe_0.2O₃ sample obtained at 450 ℃ after 4 h displayed a high BET surface area of 55.73 m²/g with a pore size of 9.38 nm. Fourier transform infrared spectra suggested that Sr²⁺ ions entered the A sites and induced a decrease of the binding energy between Mn and O. The CO conversion with the La_1-xSr_xMn_0.8Fe_0.2O₃ (0 ≤ x ≤ 0.6) samples indicated that the La_0.4Sr_0.6Mn_0.8Fe_0.2O₃ sample had the best catalytic activity and stability. Further analysis by X-ray photoelectron spectroscopy demonstrated that Sr²⁺ doping altered the content of Mn⁴⁺ ions, oxygen vacancies and adsorbed oxygen species on the surface, which affected the catalytic performance for CO oxidation.
- Molten salt method,
- δ-MnO₂ microsphere,
- Porous spherical structure,
- Calcination temperature,
- Carbon monoxide oxidation
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
30. [30]
31. [31]
32. [32]
33. [33]
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沈阳化工大学材料科学与工程学院沈阳 110142

Low temperature molten salt synthesis of porous La1-xSrxMn0.8Fe0.2O3 (0 ≤ x ≤ 0.6) microspheres with high catalytic activity for CO oxidation

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通讯作者: 陈斌, bchen63@163.com

Low temperature molten salt synthesis of porous La_1-xSr_xMn_0.8Fe_0.2O₃ (0 ≤ x ≤ 0.6) microspheres with high catalytic activity for CO oxidation