A Thermally Stable Co@pSiO2 Yolk-Shell Nanocatalyst for High-Temperature Fischer-Tropsch Synthesis

被引：1

作者：

Park, Ji Chan ^{[1
,2
]}

Kwon, Jae In ^{[1
]}

Kang, Shin Wook ^{[1
]}

Chun, Dong Hyun ^{[1
,2
]}

Jung, Heon ^{[1
]}

Lee, Ho-Tae ^{[1
]}

Yang, Jung-Il ^{[1
]}

机构：

[1] Korea Inst Energy Res, Clean Fuel Lab, Daejeon 34129, South Korea

[2] Univ Sci & Technol, Adv Energy & Technol, 217 Gajeong Ro, Daejeon 34113, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2017年 / 17卷 / 11期

关键词：

Cobalt; Fischer-Tropsch Synthesis; Yolk-Shell; Porous Silica; Thermal Stability; SYNTHESIS CATALYSTS; COBALT CATALYSTS; SILICA; HYDROCARBONS; PERFORMANCE; SELECTIVITY; PROMOTERS; STABILITY; CO;

D O I：

10.1166/jnn.2017.15080

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fischer-Tropsch synthesis (FTS) reaction produces clean fuels from mixtures of CO and H-2 gasses, conducted at temperatures of 180-250 degrees C and pressures of 15-25 bar with cobalt-based catalysts. However, conventional supported catalysts suffer from deactivation by cobalt particle sintering or agglomeration under high-temperature reaction conditions. Herein, we report a Co@pSiO(2) yolkshell framework, which contains small Co nanoparticles (similar to 11 nm) in porous silica shells, as a robust catalyst for high-temperature reactions. This catalyst is employed in FTS reactions with elevated reaction temperatures ranging from 230 degrees C to 250 degrees C, showing high activity and thermal stability.

引用

页码：8122 / 8127

页数：6

共 27 条

[1] Recent developments in the application of nanomaterials to understanding molecular level processes in cobalt catalysed Fischer-Tropsch synthesis [J].