Porous NiO nanoflowers and nanourchins: Highly active catalysts for toluene combustion

被引：104

作者：

Bai, Guangmei ^{[1
]}

Dai, Hongxing ^{[1
]}

Deng, Jiguang ^{[1
]}

Liu, Yuxi ^{[1
]}

Ji, Kemeng ^{[1
]}

机构：

[1] Beijing Univ Technol, Lab Catalysis Chem & Nanosci, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2012年 / 27卷

关键词：

Porous NiO nanoflowers; Porous NiO nanourchins; Well-defined morphology; Hydrothermal strategy; Toluene catalytic oxidation; OXIDE CATALYSTS; OXIDATIVE DEHYDROGENATION; FACILE SYNTHESIS; MANGANESE OXIDE; VOC OXIDATION; MIXED-OXIDE; NANORODS; SUPPORT; PROPANE; ALUMINA;

D O I：

10.1016/j.catcom.2012.07.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The NiO samples (NiO-HMTA, NiO-HMTA-PEG, NiO-HMTA-PVP, and NiO-urea, respectively) with a surface area of 31-66 m(2)/g and porous nanoflower- and nanourchin-like morphologies were prepared via the hydrothermal route with hexamethylenetetramine (HMTA) or urea as precipitator in the absence or presence of surfactant (poly(ethylene glycol) (PEG) or polyvinyl pyrrolidone (PVP)). It is shown that NiO-HMTA-PVP possessed the highest surface area and O-ads concentration and the best reducibility. The NiO-HMTA-PVP catalyst performed the best (T-50% = 253 degrees C and T-90% = 266 degrees C). The excellent catalytic activity of NiO-HMTA-PVP was associated with its large surface area, high Oads concentration, and good reducibility. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：148 / 153

页数：6

共 32 条

[1] Sonochemical synthesis, size controlling and gas sensing properties of NiO nanoparticles [J].

Aslani, Alireza ;

Oroojpour, Vahid ;

Fallahi, Mehrab .

APPLIED SURFACE SCIENCE, 2011, 257 (09) :4056-4061

[2] Surfactant-free preparation of NiO nanoflowers and their lithium storage properties [J].

Cao, Feng ;

Zhang, Feng ;

Deng, Ruiping ;

Hu, Wen ;

Liu, Dapeng ;

Song, Shuyan ;

Zhang, Hongjie .

CRYSTENGCOMM, 2011, 13 (15) :4903-4908

[3] Structure and properties of oxidative dehydrogenation catalysts based on MoO3/Al2O3 [J].

Chen, K ;

Xie, S ;

Bell, AT ;

Iglesia, E .

JOURNAL OF CATALYSIS, 2001, 198 (02) :232-242

[4] Effects of molybdena on the catalytic properties of vanadia domains supported on alumina for oxidative dehydrogenation of propane [J].

Dai, HX ;

Bell, AT ;

Iglesia, E .

JOURNAL OF CATALYSIS, 2004, 221 (02) :491-499

[5] VOC oxidation over MnOx-CeO2 catalysts prepared by a combustion method [J].

Delimaris, Dimitrios ;

Ioannides, Theophilos .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 84 (1-2) :303-312

[6]

Farrauto R. J., 1997, FUNDAMENTALS IND CAT, P640

[7] Controlling the size Of Cu2O nanocubes from 200 to 25 nm [J].

Gou, LF ;

Murphy, CJ .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (04) :735-738

[8] Particle size effect on the magnetic properties of NiO nanoparticles prepared by a precipitation method [J].

Karthik, K. ;

Selvan, G. Kalai ;

Kanagaraj, M. ;

Arumugam, S. ;

Jaya, N. Victor .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (01) :181-184

[9] Catalytic combustion of VOCs over a series of manganese oxide catalysts [J].

Kim, Sang Chai ;

Shim, Wang Geun .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2010, 98 (3-4) :180-185

[10]

Lahousse C, 1997, STUD SURF SCI CATAL, V110, P777

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