Comparative Study on Ethanol-Based Oxygenate Synthesis via Syngas over Monometallic Rh Catalysts Supported on Different Zr-MOFs

Three types of Zr-based metal–organic frameworks (Zr-MOFs) were employed as supports to prepare monometallic Rh catalysts by the impregnation method. The effects of the structural properties of Zr-MOFs on their supported monometallic Rh catalysts for syngas conversion were investigated. The results...

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Published in:Catalysts 2024-09, Vol.14 (9), p.566
Main Authors: Yu, Ruiqi, Duan, Xiangjiang, Yu, Xuanwang, Zheng, Xiang, Mao, Haifang, Yu, Jun
Format: Article
Language:English
Subjects:
Acetaldehyde
Adsorption
Alcohol
Alcohol, Denatured
Carbon monoxide
Catalysts
Catalytic converters
Comparative studies
Conversion
Ethanol
Ligands
Metal oxides
Metal-organic frameworks
Metals
Porous materials
Ratios
Rhodium
Synthesis gas
Temperature
Zirconium
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Duan, Xiangjiang
Yu, Xuanwang
Zheng, Xiang
Mao, Haifang
Yu, Jun
description Three types of Zr-based metal–organic frameworks (Zr-MOFs) were employed as supports to prepare monometallic Rh catalysts by the impregnation method. The effects of the structural properties of Zr-MOFs on their supported monometallic Rh catalysts for syngas conversion were investigated. The results showed that, compared to catalysts with Rh@MOF-808 and Rh@UiO-66, Rh@UiO-67 had higher CO conversion and C2+ oxygenate selectivity. The state of the Rh site is affected by the different structure of the Zr-MOFs, which is responsible for the difference in catalytic performance. The relatively higher Rh dispersion on the UiO-67 support boosted its CO adsorption ability, and Rh@UiO-67 having the best C2+ oxygenate selectivity was mainly attributed to it having the highest Rh+/Rh0 ratio.
doi_str_mv 10.3390/catal14090566
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subjects Acetaldehyde
Adsorption
Alcohol
Alcohol, Denatured
Carbon monoxide
Catalysts
Catalytic converters
Comparative studies
Conversion
Ethanol
Ligands
Metal oxides
Metal-organic frameworks
Metals
Porous materials
Ratios
Rhodium
Synthesis gas
Temperature
Zirconium
title Comparative Study on Ethanol-Based Oxygenate Synthesis via Syngas over Monometallic Rh Catalysts Supported on Different Zr-MOFs
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