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Facile synthesis of hierarchical porous solid catalyst with acid-base bifunctional active sites for the conversion of cellulose to 5-hydroxymethylfurfural

Abstract

Herein, the rod-shaped modified halloysite nanotubes (m-HNTs) with suitable wettability and basic active sites were utilized as stable particles to stabilize W/O Pickering HIPEs. Immediately following the thermal polymerization treatment and subsequent sulfonation process, we have synthesized hierarchical porous solid catalyst (HPSC) with acid-base bifunctional active sites. The as-prepared catalyst HPSC has hierarchically meso-macroporous structure, strongly acidic surface and basic catalytic active sites, which can remarkably improve the catalytic activity for the conversion of cellulose to 5-hydroxymethylfurfural (HMF). It suggests that the stable particles with basic active sites embedded in the porous structure of HPSC can significantly improve the catalytic activity. The results showed that the maximum yield of HMF (45.6%) can be obtained and the catalyst was recycled in four consecutive cycles without significant loss of catalytic activity. Moreover, it provides a new way for the development of multistage pore structure catalyst for catalytic conversion of carbohydrates.

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Publication details

The article was received on 31 Jul 2018, accepted on 19 Sep 2018 and first published on 21 Sep 2018


Article type: Paper
DOI: 10.1039/C8NJ03812K
Citation: New J. Chem., 2018, Accepted Manuscript
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    Facile synthesis of hierarchical porous solid catalyst with acid-base bifunctional active sites for the conversion of cellulose to 5-hydroxymethylfurfural

    K. Wang, Y. Zhang, J. Zhao, C. Yan, Y. Wei, M. Meng, X. Dai, C. Li and Y. Yan, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ03812K

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