Cu supported Fe-SiO2 nanocomposites for reverse water gas shift reaction

被引：35

作者：

Gonzalez-Castano, M. ^{[1
]}

Navarro de Miguel, J. C. ^{[2
]}

Sinha, F. ^{[1
]}

Ghomsi Wabo, S. ^{[3
]}

Klepel, O. ^{[3
]}

Arellano-Garcia, H. ^{[1
]}

机构：

[1] Brandenburg Univ Technol BTU Cottbus Senftenberg, Dept Proc & Plant Technol, Pl Deutsch 1, D-03046 Cottbus, Germany

[2] Univ Sevilla US, Inst Mat Sci Seville, Consejo Super Invest Cient CSIC, Dept Inorgan Chem, Ave Americo Vespucio 49, Seville 41092, Spain

[3] Brandenburg Univ Technol Cottbus Senftenberg, Inst Mat Chem, Univ Pl 1, D-01968 Senftenberg, Germany

来源：

JOURNAL OF CO2 UTILIZATION | 2021年 / 46卷

关键词：

Cu catalysts; Fe-doped silica; Nanocomposites; Reverse water gas shift reaction; MESOSTRUCTURED SILICA NANOPARTICLES; HETEROGENEOUS CATALYSTS; METHANOL SYNTHESIS; CO2; ADSORPTION; SURFACE; NI; HYDROGENATION; COPPER; OXIDE; FE;

D O I：

10.1016/j.jcou.2021.101493

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work analyses the catalytic activity displayed by Cu/SiO2, Cu-Fe/SiO2 and Cu/FSN (Fe-SiO2 nanocomposite) catalysts for the Reverse Water Gas Shift reaction. Compared to Cu/SiO2 catalyst, the presence of Fe resulted on higher CO?s selectivity and boosted resistances against the constitution of the deactivation carbonaceous species. Regarding the catalytic performance however, the extent of improvement attained through incorporation Fe species strongly relied on the catalysts' configuration. At 30 L/gh and H-2:CO2 ratios = 3, the performance of the catalysts? series increased according to the sequence: Cu/SiO2 < Cu-Fe/SiO2 << Cu/FSN. The remarkable catalytic enhancements provided by Fe-SiO2 nanocomposites under different RWGS reaction atmospheres were associated to enhanced catalyst surface basicity's and stronger Cu-support interactions. The catalytic promotion achieved by Fe-SiO2 nanocomposites argue an optimistic prospective for nanocomposite catalysts within future CO2-valorising technologies.

引用

页数：8

共 45 条

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