Catalytic oxidation of ethylene at low temperatures using porous copper manganese oxides

被引：42
作者：
Njagi, Eric C. [1 ]
Genuino, Homer C. [1 ]
King'ondu, Cecil K. [1 ]
Dharmarathna, Saminda [1 ]
Suib, Steven L. [1 ]
机构：
[1] Univ Connecticut, Dept Chem, Storrs, CT 06269 USA
来源：
APPLIED CATALYSIS A-GENERAL | 2012年 / 421卷
关键词：
Catalytic oxidation; Copper manganese oxide; Ethylene; Volatile organic compounds (VOCs); VOLATILE ORGANIC-COMPOUNDS; ETHANOL TOTAL OXIDATION; CO OXIDATION; REDOX METHOD; COMBUSTION; AIR; MIXTURES; PROPANE;
D O I：
10.1016/j.apcata.2012.02.011
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：
Amorphous manganese oxide and binary copper manganese oxides were synthesized using the redox method, characterized, and tested in the catalytic oxidation of ethylene. The catalytic activity of the synthesized catalysts toward ethylene oxidation was high (100% conversion of 1.0% C2H4 at 200 degrees C with space velocity of 35. 000 mL h(-1) g(cat)(-1)) and compared favorably with that of a commercial Hopcalite catalyst. The high catalytic activity was attributed a combination of factors including the poor crystallinity, the high surface areas (>= 163 m(2) g(-1)), porosity, presence of Mn4+ species, and compositional homogeneity of the synthesized copper manganese oxides. Incorporation of copper into the amorphous manganese oxide matrix significantly enhanced the catalytic activity of the resultant bimetallic oxides by increasing the reducibility and ease of removal of lattice oxygen species. The synthesized materials were characterized using FE-SEM, HR-TEM, BET, FAAS, XPS, and TPD methods. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：154 / 160
页数：7
相关论文
共 31 条
[1]  
Ahn HG, 2006, J NANOSCI NANOTECHNO, V6, P3599, DOI 10.1166/jnn.2006.064
[2]   Effect of synthesis parameters on catalytic properties of CuO-CeO2 [J].
Avgouropoulos, George ;
Ioannides, Theophilos .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 67 (1-2) :1-11
[3]   Catalytic combustion of C3 hydrocarbons and oxygenates over Mn3O4 [J].
Baldi, M ;
Finocchio, E ;
Milella, F ;
Busca, G .
APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 16 (01) :43-51
[4]   Mesoporous Cu-Mn Hopcalite catalyst and its performance in low temperature ethylene combustion in a carbon dioxide stream [J].
Chen, Hong ;
Tong, Xinli ;
Li, Yongdan .
APPLIED CATALYSIS A-GENERAL, 2009, 370 (1-2) :59-65
[5]   Transient oxidation of volatile organic compounds on a CuO/Al2O3 catalyst [J].
Cordi, EM ;
O'Neill, PJ ;
Falconer, JL .
APPLIED CATALYSIS B-ENVIRONMENTAL, 1997, 14 (1-2) :23-36
[6]   Ethylene removal at low temperatures under biofilter and batch conditions [J].
Elsgaard, L .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2000, 66 (09) :3878-3882
[7]   Ozone-initiated reactions with mixtures of volatile organic compounds under simulated indoor conditions [J].
Fan, ZH ;
Lioy, P ;
Weschler, C ;
Fiedler, N ;
Kipen, H ;
Zhang, JF .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2003, 37 (09) :1811-1821
[8]   Health effects of a mixture of indoor air volatile organics, their ozone oxidation products, and stress [J].
Fiedler, N ;
Laumbach, R ;
Kelly-McNeil, K ;
Lioy, P ;
Fan, ZH ;
Zhang, JF ;
Ottenweller, J ;
Ohman-Strickland, P ;
Kipen, H .
ENVIRONMENTAL HEALTH PERSPECTIVES, 2005, 113 (11) :1542-1548
[9]   Preparation of copper-containing mesoporous manganese oxides and their catalytic performance for CO oxidation [J].
Hasegawa, Y. ;
Fukumoto, K. ;
Ishima, T. ;
Yamamoto, H. ;
Sano, M. ;
Miyake, T. .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 89 (3-4) :420-424
[10]   Modification of Co-Mn-Al mixed oxide with potassium and its effect on deep oxidation of VOC [J].
Jiratova, K. ;
Mikulova, J. ;
Klempa, J. ;
Grygar, T. ;
Bastl, Z. ;
Kovanda, F. .
APPLIED CATALYSIS A-GENERAL, 2009, 361 (1-2) :106-116
1234