Preparation of Mn2O3 catalyst with core-shell structure via spray pyrolysis assisted with glucose

被引:12
作者
Huo, Yuning [1 ]
Zhang, Yi [1 ]
Xu, Zhenmin [1 ]
Zhu, Jian [1 ]
Li, Hexing [1 ]
机构
[1] Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China
基金
中国国家自然科学基金;
关键词
Mn2O3; Spray pyrolysis; Glucose; Catalytic peroxidization activity; MANGANESE OXIDES; POWDER SYNTHESIS; WET OXIDATION; REDUCTION; SPHERES;
D O I
10.1007/s11164-009-0098-5
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel core-shell Mn2O3 catalyst is obtained by facile spray pyrolysis assisted with glucose acting as a structure-directing agent. The detail characterizations include X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption/desorption isotherms, and the thermogravimetric method (TG/DTA). In the probe test of the aqueous degradation of methylene blue (MB), the high catalytic peroxidization activity of core-shell Mn2O3 catalyst, compared to the commercial Mn2O3, is attributed to the high crystallization of alpha-Mn2O3, the large surface area that resulted from the core-shell structure with porous architecture, and the special core-shell structure that acted as a micro-reactor.
引用
收藏
页码:791 / 798
页数:8
相关论文
共 26 条
[1]   Characterization of manganese and iron oxides as combustion catalysts for propane and propene [J].
Baldi, M ;
Escribano, VS ;
Amores, JMG ;
Milella, F ;
Busca, G .
APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 17 (03) :L175-L182
[2]   Composition-activity effects of Mn-Ce-O composites on phenol catalytic wet oxidation [J].
Chen, H ;
Sayari, A ;
Adnot, A ;
Larachi, F .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 32 (03) :195-204
[3]  
Chen ZW, 1997, J CRYST GROWTH, V180, P280, DOI 10.1016/S0022-0248(97)00215-7
[4]   Low temperature densification behaviour of metastable phases in ZrO2-Al2O3 powders produced by spray pyrolysis [J].
Gandhi, AS ;
Jayaram, V ;
Chokshi, AH .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 304 :785-789
[5]   Low temperature preparation of nanocrystalline Mn2O3 via ethanol-thermal reduction of MnO2 [J].
He, WL ;
Zhang, YC ;
Zhang, XX ;
Wang, H ;
Yan, H .
JOURNAL OF CRYSTAL GROWTH, 2003, 252 (1-3) :285-288
[6]   Crystallization of mesoporous metal oxides [J].
Kondo, Junko N. ;
Domen, Kazunari .
CHEMISTRY OF MATERIALS, 2008, 20 (03) :835-847
[7]   Gd2O3:Eu phosphor particles prepared from the polymeric precursors in spray pyrolysis [J].
Lim, MA ;
Kang, YC ;
Park, HD .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (12) :H171-H175
[8]   CERAMIC POWDER SYNTHESIS BY SPRAY-PYROLYSIS [J].
MESSING, GL ;
ZHANG, SC ;
JAYANTHI, GV .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (11) :2707-2726
[9]   Synthesis of nanocrystalline layered manganese oxides by the electrochemical reduction of AMnO4 (A = K, Li) [J].
Moore, GJ ;
Portal, R ;
La Salle, ALG ;
Guyomard, D .
JOURNAL OF POWER SOURCES, 2001, 97-8 :393-397
[10]   Preparation of nanoparticles via spray route [J].
Okuyama, K ;
Lenggoro, IW .
CHEMICAL ENGINEERING SCIENCE, 2003, 58 (3-6) :537-547