Issue 9, 2023

Enhancing the catalytic performance of Co–N–C derived from ZIF-67 by mesoporous silica encapsulation for chemoselective hydrogenation of furfural

Abstract

Developing Cr-free and non-noble metal catalysts with high activity, selectivity and durability for chemoselective hydrogenation of furfural to furfuryl alcohol is highly desirable yet challenging. In this study, we design a hollow mesoporous Co–N–C@mSiO2 nanostructure derived from ZIF-67 via the encapsulation–pyrolysis strategy. The Co–N–C@mSiO2 catalyst exhibits excellent catalytic performance in the furfural hydrogenation towards furfuryl alcohol with good stability, and is much better than the Co–N–C catalyst originating from plain ZIF-67 and other reported transition metal catalysts. Characterization methods and control experiments show that Co–Nx species rather than Co metal should be catalytically active sites for the above reaction. The enhanced performance is associated with abundant Co–Nx active sites, good mass transport, and the SiO2 shell protection. This work provides a novel and facile strategy for preparing highly efficient non-precious metal catalysts to replace Cr-based and noble metal catalysts for furfural hydrogenation.

Graphical abstract: Enhancing the catalytic performance of Co–N–C derived from ZIF-67 by mesoporous silica encapsulation for chemoselective hydrogenation of furfural

Supplementary files

Article information

Article type
Paper
Submitted
20 Oct 2022
Accepted
09 Jan 2023
First published
09 Jan 2023

Nanoscale, 2023,15, 4612-4619

Enhancing the catalytic performance of Co–N–C derived from ZIF-67 by mesoporous silica encapsulation for chemoselective hydrogenation of furfural

J. Zhao, X. Li, M. Zhang, Z. Xu, X. Qin, Y. Liu, L. Han and G. Li, Nanoscale, 2023, 15, 4612 DOI: 10.1039/D2NR05831F

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