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MOF-derived Fe3O4@SiO2/Al2O3 yolk-shell nanoreactor for efficient furfural acetalization
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DOI：10.1016/j.catcom.2024.106900.png)
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Abstract
En 中文
Yolk-shell nanoreactors feature numbers of advantages in promoting catalytic performance. This work demonstrates the fabrication of yolk-shell Fe3O4@SiO2/Al2O3-T (T = 500-900 degrees C) from metal-organic framework. Characterizations indicate the Fe3O4 yolk and SiO2/Al2O3 shell of the obtained nanoreactors. Fe3O4@SiO2/ Al2O3-800 showed excellent performance in furfural acetalization to 2-(dimethoxymethyl)furan, achieving a 97% yield at 60 degrees C, atmospheric pressure within 5 h. Control experiments reveal the high reactivity of Fe3O4 yolks for furfural acetalization, and acidic Al species are favorable for reactivity promotion. Besides, porous SiO2/Al2O3 shells facilitate mass transfer and increase the accessibility of active sites, also contribute to the high performance and stability.
Keywords:
Yolk-shell
Nanoreactor
Metal-organic frameworks
Acetalization
Furfural
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