Perovskite LaMnO3 hollow nanospheres: The synthesis and the application in catalytic wet air oxidation of phenol

被引：33

作者：

Gao, Peng ^{[1
,2
]}

Li, Ning ^{[1
]}

Wang, Aiqin ^{[1
]}

Wang, Xiaodong ^{[1
]}

Zhang, Tao ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

MATERIALS LETTERS | 2013年 / 92卷

关键词：

LaMnO3; Hollow nanosphere; CWAO; Microstructure; Nanoparticles; CONTROLLABLE SYNTHESIS; ACID; SHELL;

D O I：

10.1016/j.matlet.2012.10.091

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Employing La(NO3)(3)center dot 6H(2)O and 50% Mn(NO3)(2) solutions as the La3+ source and Mn2+ source, hollow nanospheres of perovskite LaMnO3 were prepared via a one-pot urea-assisted solvothermal route followed by annealing. The La/Mn ratio, calcination temperature, crystalline phase, specific surface area and morphologies of the as-prepared material were respectively characterized by ICP-OES, TG-DTA, XRD, nitrogen adsorption-desorption isotherms, TEM, and SEM. As the precursors are solid nanospheres, the hollow interior structure of the LaMnO3 nanospheres is thought to be formed during the thermal decomposition process, in which a diameter contraction was also observed. Furthermore, the as-prepared LaMnO3 material was investigated by the catalytic wet air oxidation of phenol and exhibited good catalytic activity. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：173 / 176

页数：4

共 21 条

[1] Micro/nano-structural properties of imprinted macroporous titania and zirconia [J].

Carbajo, MC ;

López, C ;

Gómez, A ;

Enciso, E ;

Torralvo, MJ .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (09) :2311-2316

[2] Self-construction of core-shell and hollow zeolite analcime icositetrahedra: A reversed crystal growth process via oriented aggregation of nanocrystallites and recrystallization from surface to core [J].

Chen, Xueying ;

Qiao, Minghua ;

Xie, Songhai ;

Fan, Kangnian ;

Zhou, Wuzong ;

He, Heyong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (43) :13305-13312

[3] Perovskite BaZrO3 hollow micro- and nanospheres: controllable fabrication, photoluminescence and adsorption of reactive dyes [J].

Dong, Zhenghong ;

Ye, Tiannan ;

Zhao, Yongnan ;

Yu, Jianguo ;

Wang, Fengqin ;

Zhang, Lingling ;

Wang, Xiaobin ;

Guo, Shukun .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (16) :5978-5984

[4] Carbon nanotubes and xerogels as supports of well-dispersed Pt catalysts for environmental applications [J].

Gomes, HT ;

Samant, PV ;

Serp, P ;

Kalck, P ;

Figueiredo, JL ;

Faria, JL .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2004, 54 (03) :175-182

[5] The transport and photo electrochemical properties of La-doped stannate BaSnO3 [J].

Hadjarab, B. ;

Bouguelia, A. ;

Benchettara, A. ;

Trari, A. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 461 (1-2) :360-366

[6] Corking nano test tubes by chemical self-assembly [J].

Hillebrenner, H ;

Buyukserin, F ;

Kang, M ;

Mota, MO ;

Stewart, JD ;

Martin, CR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (13) :4236-4237

[7] Heterogeneous catalytic wet air oxidation of refractory organic pollutants in industrial wastewaters: A review [J].

Kim, Kyoung-Hun ;

Ihm, Son-Ki .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 186 (01) :16-34

[8] Controllable Synthesis of Pure-Phase Rare-Earth Orthoferrites Hollow Spheres with a Porous Shell and Their Catalytic Performance for the CO plus NO Reaction [J].

Li, Xun ;

Tang, Changjin ;

Ai, Man ;

Dong, Lin ;

Xu, Zheng .

CHEMISTRY OF MATERIALS, 2010, 22 (17) :4879-4889

[9]

Maiorov B, 2009, NAT MATER, V8, P398, DOI [10.1038/NMAT2408, 10.1038/nmat2408]

[10] Catalytic wet oxidation of p-coumaric acid: Partial oxidation intermediates, reaction pathways and catalyst leaching [J].

Mantzavinos, D ;

Hellenbrand, R ;

Livingston, AG ;

Metcalfe, IS .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1996, 7 (3-4) :379-396

← 1 2 3 →