Fabricating Fe Nanoparticles Embedded in Zeolite Y Microcrystals as Active Catalysts for Fischer-Tropsch Synthesis

被引：24

作者：

Amoo, Cederick Cyril ^{[1
]}

Li, Mingquan ^{[1
]}

Noreen, Aqsa ^{[1
]}

Fu, Yajie ^{[1
]}

Maturura, Elton ^{[1
]}

Du, Ce ^{[1
]}

Yang, Ruiqin ^{[1
]}

Gao, Xinhua ^{[2
]}

Xing, Chuang ^{[1
]}

Tsubaki, Noritatsu ^{[3
]}

机构：

[1] Zhejiang Univ Sci & Technol, Sch Biol & Chem Engn, Hangzhou 310023, Peoples R China

[2] Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Ningxia, Peoples R China

[3] Univ Toyama, Dept Appl Chem, Grad Sch Engn, Toyama 9308555, Japan

来源：

ACS APPLIED NANO MATERIALS | 2020年 / 3卷 / 08期

关键词：

zeolite synthesis; Fe nanoparticles; Fischer-Tropsch synthesis; carbon materials; light hydrocarbons; SOLVENT-FREE SYNTHESIS; HYDROTHERMAL SYNTHESIS; IRON CATALYSTS; LOWER OLEFINS; PORE-SIZE; CARBON; HYDROGENATION; TEMPERATURE; PERFORMANCE; SELECTIVITY;

D O I：

10.1021/acsanm.0c01515

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Keen interest is taken in zeolite-encapsulated metal nanoparticles (NPs) owing to their excellent performance and ultrastability in heterogeneous catalysis. Herein, we propose a simple and efficient method to contain Fe NPs within zeolite Y microcrystals. First, a low-pressure technique was developed to successfully synthesize the zeolite Y microcrystals. The technique was then invoked, using Fe NPs fixed in nanosized C spheres as a precursor, to prepare zeolite Y-embedded Fe composite catalysts. The C spheres served as a template that restricted Fe NP growth within zeolite Y. Above all, the successful confinement of small Fe NPs within the microcrystals of zeolite Y enhanced the catalyst activity with 36.2% selectivity for light olefins (C2-C4=) at a CO conversion of 91.2% during evaluation in Fischer-Tropsch synthesis. The techniques presented in this work open up a new avenue worth exploiting for the synthesis of nano/microcrystalline materials and highly active metal-zeolite composites in heterogeneous catalysis.

引用

页码：8096 / 8103

页数：8

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