期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 394, 期 -, 页码 83-88出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2014.07.004
关键词
ZSM-5 nanosheets; Cu-ZSM-5; N2O decomposition
资金
- National Natural Science Foundation of China [20773027, 21273043, 21007011, 21177028]
- Ph.D. programs foundation of the Ministry of Education of the People's Republic of China [20100071110008]
- Science and Technology Commission of Shanghai Municipality [08DZ2270500]
- Ph.D. programs foundation of the Ministry of Education in China [20100071120012]
- overseas returnees start-up research fund of the Ministry of Education in China
- Major State Basic Research Development Program of China [2009CB623501]
ZSM-5 nanosheets were prepared using [C18H37-N+(CH3)(2)-C6H12-N+(CH3)(2)-C6H13]Br-2 as a template and then ion-exchanged with Cu cations. The catalytic performance of the obtained Cu-ZSM-5 nanosheets in N2O decomposition was investigated and compared with that of conventional Cu-ZSM-5. Higher activity as well as better stability was observed for Cu-ZSM-5 nanosheets although the Cu contents of the catalysts were identical. Relevant characterization was conducted using XRF, ICP, XRD, N-2 adsorption desorption, SEM, TEM, CO-IR, H-2-TPR and O-2-TPD. The data show that the better catalytic performance of Cu-ZSM-5 nanosheets is probably due to better accessibility of active sites, better reducibility of active Cu+ species, and the weakened interaction between oxygen and Cu+ sites. (C) 2014 Elsevier B.V. All rights reserved.
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