Remodeling nanodroplets into hierarchical mesoporous silica nanoreactors with multiple chambers

Yuzhu Ma, Hongjin Zhang, Runfeng Lin, Yan Ai, Kun Lan, Linlin Duan, Wenyao Chen, Xuezhi Duan, Bing Ma, Changyao Wang, Xiaomin Li () and Dongyuan Zhao ()
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Yuzhu Ma: Fudan University
Hongjin Zhang: Tianjin University
Runfeng Lin: Fudan University
Yan Ai: Fudan University
Kun Lan: Fudan University
Linlin Duan: Fudan University
Wenyao Chen: East China University of Science and Technology
Xuezhi Duan: East China University of Science and Technology
Bing Ma: Fudan University
Changyao Wang: Fudan University
Xiaomin Li: Fudan University
Dongyuan Zhao: Fudan University

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract Multi-chambered architectures have attracted much attention due to the ability to establish multifunctional partitions in different chambers, but manipulating the chamber numbers and coupling multi-functionality within the multi-chambered mesoporous nanoparticle remains a challenge. Herein, we propose a nanodroplet remodeling strategy for the synthesis of hierarchical multi-chambered mesoporous silica nanoparticles with tunable architectures. Typically, the dual-chambered nanoparticles with a high surface area of ~469 m2 g−1 present two interconnected cavities like a calabash. Furthermore, based on this nanodroplet remodeling strategy, multiple species (magnetic, catalytic, optic, etc.) can be separately anchored in different chamber without obvious mutual-crosstalk. We design a dual-chambered mesoporous nanoreactors with spatial isolation of Au and Pd active-sites for the cascade synthesis of 2-phenylindole from 1-nitro-2-(phenylethynyl)benzene. Due to the efficient mass transfer of reactants and intermediates in the dual-chambered structure, the selectivity of the target product reaches to ~76.5%, far exceeding that of single-chambered nanoreactors (~41.3%).

Date: 2022
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DOI: 10.1038/s41467-022-33856-y

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