Selective ammonia oxidation over ZSM-5 zeolite: Impact of catalyst's support porosity and type of deposited iron species

被引：20
作者：
Borcuch, A. [1 ]
Rutkowska, M. [1 ]
Marzec, A. [1 ]
Kowalczyk, A. [1 ]
Michalik, M. [2 ]
Moreno, J. M. [3 ]
Diaz, U. [3 ]
Chmielarz, L. [1 ]
机构：
[1] Jagiellonian Univ, Fac Chem, Gronostajowa 2, PL-30387 Krakow, Poland
[2] Jagiellonian Univ, Inst Geol Sci, Gronostajowa 3a, PL-30387 Krakow, Poland
[3] Univ Politecn Valencia, Inst Tecnol Quim, CSIC, Avd Naranjos S-N, Valencia 46022, Spain
来源：
CATALYSIS TODAY | 2020年 / 348卷
关键词：
Iron aggregation; Oligocations; Ion-exchange; Impregnation; Mesoporous MFI; NH3-SCO; NH3-SCR; SITES; FE;
D O I：
10.1016/j.cattod.2019.08.054
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In the presented studies an influence of different parameters, such as zeolite sample porosity, form of used iron source ([Fe-3(OAc)(6)O(H2O)(3)](+)oligocations or FeSO4 solutions) and method of iron species deposition (ion-exchange, impregnation), on the catalytic activity in the process of the selective catalytic oxidation of ammonia (NH3-SCO) was studied. Conventional and mesoporous ZSM-5 zeolites, obtained by desilication and modified with iron species, were analysed with respect to their textural, surface and crystalline properties (N-2-sorption, HRTEM, SEM, XRD) as well as the form of introduced Fe species (UV-vis-DRS). Ion-exchange with [Fe-3(OAc)(6)O (H2O)(3)](+) oligocations and impregnation with these oligocations and FeSO4 solutions were found as the most effective methods of the zeolite samples activation for NH3-SCO.
引用
收藏
页码：223 / 229
页数：7
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