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Enhancing Catalytic Performance with Sol‐Gel Hydrotalcite‐Derived Nickel Oxide Catalysts for Dry Reforming of Methane: An Examination on Reactivity and Coke Formation

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Abstract:

Abstract Hydrotalcite‐based materials are preferred as catalysts due to their versatility and easiness of their synthesis. This work studies supported nickel catalysts made from hydrotalcites through sol‐gel synthesis, Ni‐EDTA impregnation, and coprecipitation. The synthetized hydrotalcites present nanocapsular morphology and dispersed nickel nano‐oxide particles after calcination at 500 °C. The catalysts were evaluated at 600 °C and 800 °C for 8 hours and demonstrated high conversions and varying yields, with sol‐gel oxide catalysts (Sg OxMix ) showing the best performance with the highest reactivity and controlled coke formation at 800 °C after 14 hours of testing. The mixed oxide morphology promotes electronic effects and inhibits carbon encapsulation of metallic particles. Principal component analysis was performed to explain fluctuations in the reaction pathway.

Tópico:

Layered Double Hydroxides Synthesis and Applications

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Citations: 5
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Información de la Fuente:

SCImago Journal & Country Rank
FuenteChemCatChem
Cuartil año de publicaciónNo disponible
Volumen15
Issue12
PáginasNo disponible
pISSNNo disponible
ISSN1867-3899

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