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Especies decoradas con carbono dentro de la zeolita para la hidrogenación selectiva de furfural

Risheng Bai^1,2, Lin Li³, Jingxuan Wang¹

¹State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China.

ACS central science

|September 2, 2025

Resumen

La incorporación de especies de carbono en subnanoagrupaciones de paladio (Pd) en la zeolita MFI mejora la selectividad para convertir el furfural derivado de la biomasa en alcohol furfurílico. Esta estrategia optimiza la adsorción de furfural, mejorando significativamente la eficiencia catalítica y el rendimiento del producto.

Área de la Ciencia:

Catálisis
Ciencias de los materiales
Conversión de la biomasa

Sus antecedentes:

La hidrogenación selectiva del furfural al alcohol furfurílico es crucial para la valorización de la biomasa.
La doble adsorción de furfural en los catalizadores de paladio (Pd) conduce a vías no selectivas.

Objetivo del estudio:

Modular la adsorción de furfural en los catalizadores Pd para una mayor selectividad.
Desarrollar una estrategia fácil para el diseño de catalizadores selectivos en la conversión de biomasa.

Principales métodos:

Incorporación de especies de carbono en subnanoagrupaciones de Pd encapsuladas en zeolita MFI silícica (Pd-C@S-1).
Caracterizaciones completas y cálculos teóricos para comprender los mecanismos catalíticos.

Principales resultados:

Pd-C@S-1 logró una selectividad del 98% para el alcohol furfurílico en la conversión completa al furfural.
La modificación de carbono indujo cambios electrónicos y estéricos en Pd, promoviendo la adsorción vertical de furfural a través del grupo carbonilo.
Superado el Pd@S-1 sin carbono (11,6% de selectividad).

Conclusiones:

La modificación de carbono de los subnanoagrupamientos de Pd ofrece un control preciso de las configuraciones de adsorción del sustrato.
Este enfoque permite el control selectivo de las vías de reacción en la conversión de la biomasa.
Proporciona una estrategia fácil para el diseño de catalizadores altamente selectivos.

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