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-  2016 


DOI: 10.3866/PKU.WHXB201605041

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Abstract:

通过调控Cu负载量及Cu/Mn原子比，探究其对TiO2负载Cu-Mn复合氧化物(CuxMny/TiO2)催化材料中活性组分间相互作用的影响，结果表明，铜负载量为15% (w，质量分数)和Cu/Mn原子比为1 : 1时有利于类铜锰尖晶石相Cu1.5Mn1.5O4的形成，随着Cu负载量的增加促使氧物种从晶格氧向表面吸附氧转移。复合催化材料中铜负载量的变化及Cu/Mn原子比对活性组分和催化活性间的相互作用影响显著。结果发现Cu15Mn15/TiO2在225 ℃时使正己醛转化率达到90% (T90)，材料良好的性能归因于其具有较高的Cu2+与Oads含量，并可与Mn2+实现双还原氧化过程。结果表明，Cu15Mn15/TiO2复合材料中的类铜锰尖晶石活性组分可完成redox循环，以保持催化材料较高的稳定性。
In this study, we regulated copper loading and the atomic ratio of Cu/Mn and investigated the influence on interaction of the active species of Cu-Mn composite oxide catalyst supported on TiO2 (CuxMny/ TiO2). The results indicate that 15% (w, mass fraction) copper loading and a 1 : 1 atomic ratio of Cu/Mn favors formation of analogous Cu-Mn spinel (Cu1.5Mn1.5O4). With increasing loading of copper, oxygen transfers from the lattice oxygen species to defect oxygen. The changes in copper loading and the Cu/Mn atomic ratio have a large influence on the interaction between the active components and the catalytic activity. We found that 90% n-hexanal can be degraded by Cu15Mn15/TiO2 at 225 ℃ (T90). The excellent performance of Cu15Mn15/TiO2 is attributed to the higher contents of Cu2+ and Oads, which can achieve a dual redox process with Mn2+ in Cu15Mn15/TiO2. The analogous Cu-Mn spinel active ingredient can maintain high catalytic stability by redox cycles

 References

[1]  2 Li P. ; Tong Z. Q. ; Huang Y Acta Sci. Circum 2008, 28 (3), 468. doi: 10.3321/j.issn:0253-2468.2008.03.010
[2]  8 Shu J. ; Wu S. L. ; Wang R. Chin. J. Catal 1989, 10 (3), 244.
[3]  束骏; 吴善良; 汪仁. 催化学报, 1989, 10 (3), 244.
[4]  9 Morales R. M. ; Barbero P. B. ; Cadús E. C Fuel 2008, 87 (7), 1177. doi: 10.1016/j.fuel.2007.07.015
[5]  10 Li W. ; Huang L. L. ; Qu Y. C. ; Ning X. Y. ; Zou K. H Petrochem. Technol 2014, 43 (11), 1319. doi: 10.3969/j.issn.1000-8144.2014.11.015
[6]  林性贻; 马俊涛; 陈崇启. 物理化学学报, 2014, 30 (1), 157. doi: 10.3866/PKU.WHXB201311271
[7]  13 Zhu X. ; Wang K. ; Zhu J. ; Koga M. J Agr. Food. Chem 2001, 49 (10), 4790. doi: 10.1021/jf001084y
[8]  陈春雨; 刘彤; 王卉; 于琴琴; 范杰; 肖丽萍; 郑小明. 催化学报, 2012, 33 (6), 941. doi: 10.1016/S1872-2067(11)60391-4
[9]  15 Tong C. S. ; Tong X. X. ; Jin M. G. ; Ye N. J. Chin. J. Catal 2010, 31 (9), 1185. doi: 10.3724/SP.J.1088.2010.00214
[10]  16 Einaga H. ; Maeda N. ; Yamamoto S. ; Teraoka Y Catal. Today 2014, 245, 22. doi: 10.1016/j.cattod.2014.09.018
[11]  17 Li W. B. ; Zhuang M. ; Xiao T. C. ; Green M. L. H. J. Phys. Chem. B 2006, 110 (43), 21568. doi: 10.1021/jp063580g
[12]  19 Dai Y. ; Li S. S. ; Tang C. J. Chin. J. Inorg. Chem 2012, 28 (8), 1555.
[13]  戴越; 李珊珊; 汤常金. 无机化学学报, 2012, 28 (8), 1555.
[14]  20 Cai L. N. ; Hu Z. H. ; Branton P. Chin. J. Catal 2014, 35 (2), 159. doi: 10.1016/S1872-2067(12)60699-8
[15]  蔡丽娜; 胡臻皓; PeterBranton; 李文翠. 催化学报, 2014, 35 (2) doi: 10.1016/S1872-2067(12)60699-8
[16]  29 Wang D. ; Zhang L. ; Li J. H. ; Kamasamudram K. ; Epling W S. Catal. Today 2014, 231, 64. doi: 10.1016/j.cattod.2013.11.040
[17]  晏耀宗; 郭谨玮陈亚中. 分子催化, 2015, 29 (1), 82.
[18]  32 Li, D. Studies on the Characterization and the Properties ofCuO-MnxOy/γ-Al2O3 Catalyst for NO Catalytic Reduction. Ph. D.Dissertation, Nanjing University, Nanjing, 2011.
[19]  24 Lu H. F. ; Kong X. X. ; Huang H. F. ; Zhou Y. ; Chen Y. F J. Environ. Sci 2015, 32, 102. doi: 10.1016/j.jes.2014.11.015
[20]  25 Guo J. L. ; Jia M. L. ; Zhaori G. T. ; Shen Y. N Acta Chim. Sin 2011, 69, 555.
[21]  王幸宜; 卢冠忠; 汪仁; 吴善良. 催化学报, 1994, 15 (2), 103.
[22]  30 Hosseini S. A. ; Niaei A. ; Salari D. ; Alvarez-Galvanc M. C. ; Fierro J. L. G Ceram. Int 2014, 40 (4), 6157. doi: 10.1016/j.ceramint.2013.11.068
[23]  31 Yan Y. Z. ; Guo J.W. ; Chen Y. Z. J Mol. Catal 2015, 29 (1), 82.
[24]  李丹. CuOMnxOy/γ-Al2O3催化剂的制备表征及其催化还原的性质研究[D].南京:南京大学, 2011.
[25]  1 Inomata M. ; Mori K. ; Miyamoto A. ; Murakami Y. J Phys. Chem 1983, 87 (5), 754. doi: 10.1021/j100228a013
[26]  李鹏; 童志权; 黄妍. 环境科学学报, 2008, 28 (3), 468. doi: 10.3321/j.issn:0253-2468.2008.03.010
[27]  3 Li J. H. ; Chen J. J. ; Ke R. ; Luo C. K. ; Hao J. M Catal. Commun 2007, 8 (12), 1896. doi: 10.1016/j.catcom.2007.03.007
[28]  4 Park K. H. ; Sang M. L. ; Kim S. S. ; Dong W. K. ; Hong S. C Catal. Lett 2013, 143 (3), 246. doi: 10.1007/s10562-012-0952-8
[29]  5 Li W. B. ; Chu W. B. ; Zhuang M. ; Hua J Catal. Today 2004, 93- 95,205. doi: 10.1016/j.cattod.2004.06.042
[30]  6 Tanaka Y. ; Utaka T. ; Kikuchi R. ; Sasaki K. ; Eguchi K J. Catal. Today 2003, 242 (2), 287. doi: 10.1016/S0926-860X(02)00529-X(02)00529-X
[31]  7 Li W. B. ; Gong H Acta Phys. -Chim. Sin 2010, 26, 885. doi: 10.3866/PKU.WHXB20100436
[32]  黎维彬; 龚浩. 物理化学学报, 2010, 26, 885. doi: 10.3866/PKU.WHXB20100436
[33]  李玮; 黄丽丽; 翟友存; 宁晓宇; 邹克华. 石油化工, 2014, 43 (11), 1319. doi: 10.3969/j.issn.1000-8144.2014.11.015
[34]  11 Lin S. Y. ; Ma J. T. ; Chen C. Q Acta Phys. -Chim. Sin 2014, 30 (1), 157. doi: 10.3866/PKU.WHXB201311271
[35]  12 Zhang L. ; Millet J. M. ; Ozkan U. S Appl. Catal. A 2009, 357 (1), 66. doi: 10.1016/j.apcata.2009.01.011
[36]  14 Chen C. Y. ; Liu T. ; Wang H. ; Yu Q. Q. ; Fang J. ; Xiao L. P. ; Zheng X. M. Chin. J.Catal 2012, 33 (6), 941. doi: 10.1016/S1872-2067(11)60391-4
[37]  仝长水; 仝晓霞; 靳孟贵; 叶念军. 催化学报, 2010, 31 (9), 1185. doi: 10.3724/SP.J.1088.2010.00214
[38]  18 Vu V. H. ; Belkouch J. ; Ould-Dris A. ; Taouk B. AIChE J. 2008, 54 (6), 1585. doi: 10.1002/aic.11482
[39]  21 Nagase K. ; Zheng Y. ; Kodama Y. ; Katuta J. J. Catal 1999, 187 (1), 123. doi: 10.1006/jcat.1999.2611
[40]  22 Yang L. ; Bo L. L. ; Sun J. Y. ; Liang X. X. ; Hu X. J. ; Meng H.L. Chin. J. Environ. Eng 2014, 11 (8), 4871.
[41]  杨力; 卜龙利; 孙剑宇; 梁欣欣; 虎雪姣; 孟海龙. 环境工程学报, 2014, 11 (8), 4871.
[42]  23 Zhang J. J. ; Li J.W. ; Zhu J. Q. ; Wang Y. ; Chen B. H. Chin. J. Catal 2011, 32 (8), 1380. doi: 10.3724/SP.J.1088.2011.10323
[43]  张佳瑾; 李建伟; 朱吉钦; 王越; 陈标华. 催化学报, 2011, 32 (8), 1380. doi: 10.3724/SP.J.1088.2011.10323
[44]  郭金玲; 贾美林; 照日格图; 沈岳年. 化学学报, 2011, 69, 555.
[45]  26 Xu, M. Y. Preparation and Catalytic Performance for TolueneCombustion of CuMn2CenOx/Cord Cell-type Catalysts. M. S.Dissertation, South China University of Technology, Guangzhou, 2011.
[46]  徐铭遥.单元式CuMn2CenOx/Cord催化剂的研制及其对甲苯催化燃烧性能[D].广州:华南理工大学, 2011.
[47]  27 Cao H. Y. ; Li X, S ; . ; Chen Y. Q. ; Gong M. C. ; Wang J. L J. Rare Earth 2012, 30 (9), 871. doi: 10.1016/S1002-0721(12)60148-3
[48]  28 Wang X. Y. ; Lu G. Z. ; Wang R. ; Wu S. L. Chin. J. Catal 1994, 15 (2), 103.

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