Evaluation of Vanadium Oxide Nanocatalysts over Graphene for Propylene Production Through Oxidative Propane Dehydrogenations DOI Open Access

Robabeh Mousavi,

Armin Fazlinezhad,

Abdollah Fallah Shojaeı

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(5), P. 409 - 409

Published: April 23, 2025

This study reports an efficient and low-cost hydrothermal method for synthesizing vanadium oxide/graphene nanocatalysts. Field-emission scanning electron microscopy (FESEM) revealed the formation of nanostructured catalysts with consistent directional shapes, as confirmed by X-ray diffraction (XRD). Fourier transform infrared (FTIR) spectroscopy indicated presence V2O5 graphene, highlighting their bonds structures. Thermogravimetric analysis (TGA) identified three stages weight loss in nanocatalysts, corresponding to water molecule evaporation, decomposition residual organics, yellow pentoxide particles due oxidation V4+. Gas chromatography from 450 °C 600 showed that ethylene selectivity increased temperature, while propylene opposite trend. The effectiveness these nanocatalysts was assessed oxidative dehydrogenation propane using temperature programmed reduction. approach graphene-based oxide nanostructures will open up a new insight into fabrication high-performance catalysts.

Language: Английский

Evaluation of Vanadium Oxide Nanocatalysts over Graphene for Propylene Production Through Oxidative Propane Dehydrogenations DOI Open Access

Robabeh Mousavi,

Armin Fazlinezhad,

Abdollah Fallah Shojaeı

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(5), P. 409 - 409

Published: April 23, 2025

This study reports an efficient and low-cost hydrothermal method for synthesizing vanadium oxide/graphene nanocatalysts. Field-emission scanning electron microscopy (FESEM) revealed the formation of nanostructured catalysts with consistent directional shapes, as confirmed by X-ray diffraction (XRD). Fourier transform infrared (FTIR) spectroscopy indicated presence V2O5 graphene, highlighting their bonds structures. Thermogravimetric analysis (TGA) identified three stages weight loss in nanocatalysts, corresponding to water molecule evaporation, decomposition residual organics, yellow pentoxide particles due oxidation V4+. Gas chromatography from 450 °C 600 showed that ethylene selectivity increased temperature, while propylene opposite trend. The effectiveness these nanocatalysts was assessed oxidative dehydrogenation propane using temperature programmed reduction. approach graphene-based oxide nanostructures will open up a new insight into fabrication high-performance catalysts.

Language: Английский

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