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Biomass‐Derived Graphene‐like Carbon: Efficient Metal‐Free Carbocatalysts for Epoxidation

MPG-Autoren
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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Zitation

Wen, G., Gu, Q., Liu, Y., Schlögl, R., Wang, C., Tian, Z., et al. (2018). Biomass‐Derived Graphene‐like Carbon: Efficient Metal‐Free Carbocatalysts for Epoxidation. Angewandte Chemie International Edition, 57(51), 16898-16902. doi:10.1002/anie.201809970.


Zitierlink: https://hdl.handle.net/21.11116/0000-0002-7FBD-C
Zusammenfassung
N‐doped graphene‐like layered carbon (NG) could be synthesized via a metal‐free pyrolysis route from glucose, fructose and 5‐hydroxymethylfurfural (5‐HMF), which are cheap and widely available biomass or biomass derivatives. Among the three kinds of NG, well‐developed thin layered structure with large lateral dimension could be obtained when 5‐HMF was used as the precursor. More importantly, the 5‐HMF derived NG could exhibit superior performance in epoxidation reactions compared with the conventional carbon catalysts and the performance of 5‐HMF derived NG was even similar to that of a Co catalyst. Co catalyst is widely studied in alkene epoxidation reactions. Characterizations by TEM and XPS accompanied by EPR analysis revealed that the origin of the enhanced catalytic properties for NG was ascribed to the activation ability both for alkene and O2, which was attributed to the graphitic layered structure and graphitic N species, respectively.