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

页码：223 / 229

页数：7

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