Direct methane conversion with oxygen and CO over hydrophobic dB-ZSM-5 supported Rh single-atom catalyst
Isolated Rh atoms are supported on hydrophobic dB-ZSM-5. Single-atom Rh on dB-ZSM-5 is characterized with Ac-HAADF/STEM and CO adsorption FTIR. Direct conversion of methane to oxygenates is carried out in an autoclave in water charged with CH4, O2 and CO at 150 °C. Hydrophobic Rh-dB-ZSM-5 is compare...
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| Autores principales: | , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/1372ddfa2c064c76a25c35b7172f8f43 |
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| Sumario: | Isolated Rh atoms are supported on hydrophobic dB-ZSM-5. Single-atom Rh on dB-ZSM-5 is characterized with Ac-HAADF/STEM and CO adsorption FTIR. Direct conversion of methane to oxygenates is carried out in an autoclave in water charged with CH4, O2 and CO at 150 °C. Hydrophobic Rh-dB-ZSM-5 is compared with hydrophilic Rh-ZSM-5 (Si/Al = 15) for its catalytic performance. Rh-dB-ZSM-5 catalyst exhibits higher CH3OH selectivity and lower CH3COOH and CO2 selectivity. The catalytic activity of Rh-dB-ZSM-5 is much higher than the activity of Rh-ZSM-5 when the reaction is carried out under low pressure. |
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