Effect of Cu substitution on promoted benzene oxidation over porous CuCo-based catalysts derived from layered double hydroxide with resistance of water vapor | |
Li, S. D.; Wang, H. S.; Li, W. M.; Wu, X. F.; Tang, W. X.; Chen, Y. F.![]() | |
刊名 | Applied Catalysis B-Environmental
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2015 | |
期号 | 0页码:260-269 |
关键词 | CuCo-based catalysts Layered double hydroxide Catalytic oxidation Benzene Water vapor VOLATILE ORGANIC-COMPOUNDS MIXED OXIDES COMPOSITE OXIDES COBALT OXIDE CO TOLUENE NANOPARTICLES COMBUSTION REMOVAL DECOMPOSITION |
其他题名 | Appl. Catal. B-Environ. |
中文摘要 | Porous and dispersed CuCo-based mixed metal oxides catalysts (denoted as CuxCo3-xAl-MMO) are obtained via the calcination of ternary CuxCo3-xAl-layered double hydroxide (LDH) precursors, which exhibit excellent catalytic activity towards complete oxidation of benzene. The Cu0.5Co2,5Al-MMO sample shows the maximum activity of 2.41 mmol g(cat)(-1) h(-1) with 90% benzene conversion at 290 degrees C at a high space velocity (SV=60,000 mLg(-1) h(-1)), comparable to that of only 8% conversion for Cu3Al-MMO sample. The significantly enhanced activity is correlated with higher surface area, narrower pore size, low-temperature reducibility and rich oxygen vacancies and lattice oxygen derived from the synergistic effect over porous and dispersive CuxCo3-xAl-MMO catalysts containing CuO and Co3O4 spinel mixed oxides verified by XRD, BET, H-2-TPR, TEM and XPS measurements. Stability with prolonged time on benzene stream and the resistance to water vapor are further investigated. In addition, a monolithic CuCoAl-MMO film catalyst is fabricated by an in situ growth-calcination method, which displays comparable catalytic activity with CuxCo3-xAl-MMO powder. Therefore, this work provides a facile method for the preparation of CuCo-based catalysts with excellent characters responsible for better catalytic activities, which can be used as promising candidates for practical VOCs oxidation. (C) 2014 Elsevier B.V. All rights reserved. |
收录类别 | SCI |
原文出处 | |
语种 | 英语 |
公开日期 | 2015-04-01 |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/11775] ![]() |
专题 | 过程工程研究所_研究所(批量导入) |
推荐引用方式 GB/T 7714 | Li, S. D.,Wang, H. S.,Li, W. M.,et al. Effect of Cu substitution on promoted benzene oxidation over porous CuCo-based catalysts derived from layered double hydroxide with resistance of water vapor[J]. Applied Catalysis B-Environmental,2015(0):260-269. |
APA | Li, S. D.,Wang, H. S.,Li, W. M.,Wu, X. F.,Tang, W. X.,&Chen, Y. F..(2015).Effect of Cu substitution on promoted benzene oxidation over porous CuCo-based catalysts derived from layered double hydroxide with resistance of water vapor.Applied Catalysis B-Environmental(0),260-269. |
MLA | Li, S. D.,et al."Effect of Cu substitution on promoted benzene oxidation over porous CuCo-based catalysts derived from layered double hydroxide with resistance of water vapor".Applied Catalysis B-Environmental .0(2015):260-269. |
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