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dc.contributor.authorYue, Qin
dc.contributor.authorLi, Jialuo
dc.contributor.authorZhang, Yu
dc.contributor.authorCheng, Xiaowei
dc.contributor.authorChen, Xiao
dc.contributor.authorPan, Panpan
dc.contributor.authorSu, Jiacan
dc.contributor.authorElzatahry, Ahmed A
dc.contributor.authorAlghamdi, Abdulaziz
dc.contributor.authorDeng, Yonghui
dc.contributor.authorZhao, Dongyuan
dc.description.abstractYolk-shell nanomaterials with a rattle-like structure have been considered ideal carriers and nanoreactors. Traditional methods to constructing yolk-shell nanostructures mainly rely on multistep sacrificial template strategy. In this study, a facile and effective plasmolysis-inspired nanoengineering strategy is developed to controllably fabricate yolk-shell magnetic mesoporous silica microspheres via the swelling-shrinkage of resorcinol-formaldehyde (RF) upon soaking in or removal of n-hexane. Using Fe3O4@RF microspheres as seeds, surfactant-silica mesostructured composite is deposited on the swelled seeds through the multicomponent interface coassembly, followed by solvent extraction to remove surfactant and simultaneously induce shrinkage of RF shell. The obtained yolk-shell microspheres (Fe3O4@RF@void@mSiO2) possess a high magnetization of 40.3 emu/g, high surface area (439 m2/g), radially aligned mesopores (5.4 nm) in the outer shell, tunable middle hollow space (472-638 nm in diameter), and a superparamagnetic core. This simple method allows a simultaneous encapsulation of Au nanoparticles into the hollow space during synthesis, and it leads to spherical Fe3O4@RF@void-Au@mSiO2 magnetic nanocatalysts, which show excellent catalysis efficiency for hydrogenation of 4-nitrophenol by NaBH4 with a high conversion rate (98%) and magnetic recycling stability.
dc.relation.ispartofjournalJournal of the American Chemical Society
dc.subject.fieldofresearchChemical sciences
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsChemistry, Multidisciplinary
dc.subject.keywordsLi-Ion Batteries
dc.titlePlasmolysis-lnspired Nanoengineering of Functional Yolk-Shell Microspheres with Magnetic Core and Mesoporous Silica Shell
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationYue, Q; Li, J; Zhang, Y; Cheng, X; Chen, X; Pan, P; Su, J; Elzatahry, AA; Alghamdi, A; Deng, Y; Zhao, D, Plasmolysis-lnspired Nanoengineering of Functional Yolk-Shell Microspheres with Magnetic Core and Mesoporous Silica Shell, Journal of the American Chemical Society, 2017, 139 (43), pp. 15486-15493
gro.hasfulltextNo Full Text
gro.griffith.authorZhao, Dongyuan

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