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

[11] CATALYTIC-OXIDATION OF ORGANICS IN AQUEOUS-SOLUTIONS .1. KINETICS OF PHENOL OXIDATION [J].

PINTAR, A ;

LEVEC, J .

JOURNAL OF CATALYSIS, 1992, 135 (02) :345-357

[12] Heterogeneous water phase catalysis as an environmental application:: a review [J].

Pirkanniemi, K ;

Sillanpää, M .

CHEMOSPHERE, 2002, 48 (10) :1047-1060

[13] Rapid solid state synthesis by spark plasma sintering and magnetic properties of LaMnO3 perovskite manganite [J].

Regaieg, Y. ;

Delaizir, G. ;

Herbst, F. ;

Sicard, L. ;

Monnier, J. ;

Montero, D. ;

Villeroy, B. ;

Ammar-Merah, S. ;

Cheikhrouhou, A. ;

Godart, C. ;

Koubaa, M. .

MATERIALS LETTERS, 2012, 80 :195-198

[14] Catalytic wet air oxidation of stearic acid on cerium oxide supported noble metal catalysts [J].

Renard, B ;

Barbier-Jr, J ;

Duprez, D ;

Durécu, S .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 55 (01) :1-10

[15] A Perovskite Oxide Optimized for Oxygen Evolution Catalysis from Molecular Orbital Principles [J].

Suntivich, Jin ;

May, Kevin J. ;

Gasteiger, Hubert A. ;

Goodenough, John B. ;

Shao-Horn, Yang .

SCIENCE, 2011, 334 (6061) :1383-1385

[16] Treatment of gasoline-contaminated waters by advanced oxidation processes [J].

Tiburtius, ERL ;

Peralta-Zamora, P ;

Emmel, A .

JOURNAL OF HAZARDOUS MATERIALS, 2005, 126 (1-3) :86-90

[17] Removal of salicylic acid on perovskite-type oxide LaFeO3 catalyst in catalytic wet air oxidation process [J].

Yang, Min ;

Xu, Aihua ;

Du, Hongzhang ;

Sun, Chenglin ;

Li, Can .

JOURNAL OF HAZARDOUS MATERIALS, 2007, 139 (01) :86-92

[18] Formation Mechanism of CaTiO3 Hollow Crystals with Different Microstructures [J].

Yang, Xianfeng ;

Fu, Junxiang ;

Jin, Chongjun ;

Chen, Jian ;

Liang, Chaolun ;

Wu, Mingmei ;

Zhou, Wuzong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (40) :14279-14287

[19] Cubes of Zeolite A with an Amorphous Core [J].

Yao, Jianfeng ;

Li, Dan ;

Zhang, Xinyi ;

Kong, Chun-Hua ;

Yue, Wenbo ;

Zhou, Wuzong ;

Wang, Huanting .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (44) :8397-8399

[20] Controllable Synthesis and Photoluminescence of Single-Crystalline BaHfO3 Hollow Micro- and Nanospheres [J].

Ye, Tiannan ;

Dong, Zhenghong ;

Zhao, Yongnan ;

Yu, Jianguo ;

Wang, Fengqin ;

Guo, Shukun ;

Zou, Yongcun .

LANGMUIR, 2011, 27 (14) :8878-8884

← 1 2 3 →