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]
1. [1]
  Qin ZHU , Jiao MA , Zhihui QIAN , Yuxu LUO , Yujiao GUO , Mingwu XIANG , Xiaofang LIU , Ping NING , Junming GUO . Morphological evolution and electrochemical properties of cathode material LiAl_0.08Mn_1.92O₄ single crystal particles. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1549-1562. doi: 10.11862/CJIC.20240022
2. [2]
  Xiaoning TANG , Shu XIA , Jie LEI , Xingfu YANG , Qiuyang LUO , Junnan LIU , An XUE . Fluorine-doped MnO₂ with oxygen vacancy for stabilizing Zn-ion batteries. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1671-1678. doi: 10.11862/CJIC.20240149
3. [3]
  Qiang Zhang , Yuanbiao Huang , Rong Cao . Imidazolium-Based Materials for CO₂ Electroreduction. Acta Physico-Chimica Sinica, 2024, 40(4): 2306040-0. doi: 10.3866/PKU.WHXB202306040
4. [4]
  Yanhui Guo , Li Wei , Zhonglin Wen , Chaorong Qi , Huanfeng Jiang . Recent Progress on Conversion of Carbon Dioxide into Carbamates. Acta Physico-Chimica Sinica, 2024, 40(4): 2307004-0. doi: 10.3866/PKU.WHXB202307004
5. [5]
  Zhiquan Zhang , Baker Rhimi , Zheyang Liu , Min Zhou , Guowei Deng , Wei Wei , Liang Mao , Huaming Li , Zhifeng Jiang . Insights into the Development of Copper-Based Photocatalysts for CO₂ Conversion. Acta Physico-Chimica Sinica, 2024, 40(12): 2406029-0. doi: 10.3866/PKU.WHXB202406029
6. [6]
  Hui-Ying Chen , Hao-Lin Zhu , Pei-Qin Liao , Xiao-Ming Chen . Integration of Ru(Ⅱ)-Bipyridyl and Zinc(Ⅱ)-Porphyrin Moieties in a Metal-Organic Framework for Efficient Overall CO₂ Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(4): 2306046-0. doi: 10.3866/PKU.WHXB202306046
7. [7]
  Bing WEI , Jianfan ZHANG , Zhe CHEN . Research progress in fine tuning of bimetallic nanocatalysts for electrocatalytic carbon dioxide reduction. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 425-439. doi: 10.11862/CJIC.20240201
8. [8]
  Jianan Hong , Chenyu Xu , Yan Liu , Changqi Li , Menglin Wang , Yanwei Zhang . Decoding the interfacial competition between hydrogen evolution and CO₂ reduction via edge-active-site modulation in photothermal catalysis. Acta Physico-Chimica Sinica, 2025, 41(9): 100099-0. doi: 10.1016/j.actphy.2025.100099
9. [9]
  Bizhu Shao , Huijun Dong , Yunnan Gong , Jianhua Mei , Fengshi Cai , Jinbiao Liu , Dichang Zhong , Tongbu Lu . Metal-Organic Framework-Derived Nickel Nanoparticles for Efficient CO₂ Electroreduction in Wide Potential Windows. Acta Physico-Chimica Sinica, 2024, 40(4): 2305026-0. doi: 10.3866/PKU.WHXB202305026
10. [10]
  Yan Kong , Wei Wei , Lekai Xu , Chen Chen . Electrochemical Synthesis of Organonitrogen Compounds from N-integrated CO₂ Reduction Reaction. Acta Physico-Chimica Sinica, 2024, 40(8): 2307049-0. doi: 10.3866/PKU.WHXB202307049
11. [11]
  Xiaofei Liu , He Wang , Li Tao , Weimin Ren , Xiaobing Lu , Wenzhen Zhang . Electrocarboxylation of Benzylic Phosphates and Phosphinates with Carbon Dioxide. Acta Physico-Chimica Sinica, 2024, 40(9): 2307008-0. doi: 10.3866/PKU.WHXB202307008
12. [12]
  Jie ZHAO , Huili ZHANG , Xiaoqing LU , Zhaojie WANG . Theoretical calculations of CO₂ capture and separation by functional groups modified 2D covalent organic framework. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 275-283. doi: 10.11862/CJIC.20240213
13. [13]
  Wei HE , Jing XI , Tianpei HE , Na CHEN , Quan YUAN . Application of solar-driven inorganic semiconductor-microbe hybrids in carbon dioxide fixation and biomanufacturing. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 35-44. doi: 10.11862/CJIC.20240364
14. [14]
  Haoran Zhang , Yaxin Jin , Peng Kang , Sheng Zhang . The Convergence and Innovative Application of Artificial Intelligence in Scientific Research: A Case Study of Electrocatalytic Carbon Dioxide Reduction in the Context of the Dual-Carbon Strategy. University Chemistry, 2025, 40(9): 148-155. doi: 10.12461/PKU.DXHX202412099
15. [15]
  Jiaxin Su , Jiaqi Zhang , Shuming Chai , Yankun Wang , Sibo Wang , Yuanxing Fang . Optimizing Poly(heptazine imide) Photoanodes Using Binary Molten Salt Synthesis for Water Oxidation Reaction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408012-0. doi: 10.3866/PKU.WHXB202408012
16. [16]
  Hailang JIA , Pengcheng JI , Hongcheng LI . Preparation and performance of nickel doped ruthenium dioxide electrocatalyst for oxygen evolution. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1632-1640. doi: 10.11862/CJIC.20240398
17. [17]
  Caixia Lin , Zhaojiang Shi , Yi Yu , Jianfeng Yan , Keyin Ye , Yaofeng Yuan . Ideological and Political Design for the Electrochemical Synthesis of Benzoxathiazine Dioxide Experiment. University Chemistry, 2024, 39(2): 61-66. doi: 10.3866/PKU.DXHX202309005
18. [18]
  Yufan ZHAO , Jinglin YOU , Shixiang WANG , Guopeng LIU , Xiang XIA , Yingfang XIE , Meiqin SHENG , Feiyan XU , Kai TANG , Liming LU . Raman spectroscopic quantitative study of the melt microstructure in binary Li₂O-GeO₂ functional crystals. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1533-1544. doi: 10.11862/CJIC.20250063
19. [19]
  Yongwei ZHANG , Chuang ZHU , Wenbin WU , Yongyong MA , Heng YANG . Efficient hydrogen evolution reaction activity induced by ZnSe@nitrogen doped porous carbon heterojunction. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 650-660. doi: 10.11862/CJIC.20240386
20. [20]
  Ye Wang , Ruixiang Ge , Xiang Liu , Jing Li , Haohong Duan . An Anion Leaching Strategy towards Metal Oxyhydroxides Synthesis for Electrocatalytic Oxidation of Glycerol. Acta Physico-Chimica Sinica, 2024, 40(7): 2307019-0. doi: 10.3866/PKU.WHXB202307019

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(724)
HTML views(67)

通讯作者: 陈斌, bchen63@163.com

1.
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

Metrics

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