A new approach to maintaining the structural integrity of fragile nanostructured heterogeneous catalysts with nanoscale magnetic stir bars
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摘要
<正>Three-dimensional (3D) self-assembled nanomaterials with hierarchical architectures are very attractive materials due to their superior physical and chemical properties [1–7]. Over the past few years, a variety of nanomaterials with well-controlled structures
引文
[1] Fattakhova-Rohlfing D, Zaleska A, Bein T. Three-dimensional titanium dioxide nanomaterials. Chem Rev 2014;114:9487–558.
[2] Feyen M, Weidenthaler C, Schüth F, et al. Synthesis of structurally stable colloidal composites as magnetically recyclable acid catalysts. Chem Mater2010;22:2955–61.
[3] Leininger S, Olenyuk B, Stang PJ. Self-assembly of discrete cyclic nanostructures mediated by transition metals. Chem Rev 2000;100:853–907.
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[7] Lai XY, Wang CR, Jin Q, et al. Synthesis and photocatalytic activity of hierarchical flower-like SrTiO3nanostructure. Sci China Mater 2015;58:192–7.
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[10] Liu B, Zeng HC. Mesoscale organization of cuo nanoribbons:formation of‘‘dandelions”. J Am Chem Soc 2004;126:8124–5.
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[12] Li WN, Yuan J, Shen XF, et al. Hydrothermal synthesis of structure-and shapecontrolled manganese oxide octahedral molecular sieve nanomaterials. Adv Funct Mater 2006;16:1247–53.
[13] Zhao M, Deng K, He L, et al. Core-shell palladium nanoparticle@metal-organic frameworks as multifunctional catalysts for cascade reactions. J Am Chem Soc2014;136:1738–41.
[14] Zhao M, Yuan K, Wang Y, et al. Metal-organic frameworks as selectivity regulators for hydrogenation reactions. Nature 2016;539:76.
[15] Li M, Feng N, Liu M, et al. Hierarchically porous carbon/red phosphorus composite for high-capacity sodium-ion battery anode. Sci Bull2018;63:982–9.
[16] Yang ZD, Chang ZW, Zhang Q, et al. Decorating carbon nanofibers with Mo2C nanoparticles towards hierarchically porous and highly catalytic cathode for high-performance Li-O2batteries. Sci Bull 2018;63:433–40.
[17] Cao A, Hu J, Wan L. Morphology control and shape evolution in 3D hierarchical superstructures. Sci China Chem 2012;55:2249–56.
[18] Joo SH, Park JY, Tsung CK, et al. Thermally stable pt/mesoporous silica coreshell nanocatalysts for high-temperature reactions. Nat Mater 2009;8:126–31.
[19] De Rogatis L, Cargnello M, Gombac V, et al. Embedded phases:a way to active and stable catalysts. ChemSusChem 2010;3:24–42.
[20] Bian SW, Ma Z, Cui ZM, et al. Synthesis of micrometer-sized nanostructured magnesium oxide and its high catalytic activity in the claisen-schmidt condensation reaction. J Phys Chem C 2008;112:11340–4.
[21] Cui ZM, Chen Z, Cao CY, et al. Coating with mesoporous silica remarkably enhances the stability of the highly active yet fragile flower-like mgo catalyst for dimethyl carbonate synthesis. Chem Commun 2013;49:6093–5.
[22] Yang SL, Huang PP, Peng L, et al. Hierarchical flowerlike magnesium oxide hollow spheres with extremely high surface area for adsorption and catalysis. J Mater Chem A 2016;4:400–6.
[23] Chong WH, Chin LK, Tan RL, et al. Stirring in suspension:nanometer-sized magnetic stir bars. Angew Chem Int Ed 2013;52:8570–3.
[24] Yang S, Cao C, Sun Y, et al. Nanoscale magnetic stirring bars for heterogeneous catalysis in microscopic systems. Angew Chem Int Ed 2015;54:2661–4.
[25] Zhou X, Chen C, Cao C, et al. Enhancing reaction rate in a pickering emulsion system with natural magnetotactic bacteria as nanoscale magnetic stirring bars. Chem Sci 2018;9:2575–80.
[2] Feyen M, Weidenthaler C, Schüth F, et al. Synthesis of structurally stable colloidal composites as magnetically recyclable acid catalysts. Chem Mater2010;22:2955–61.
[3] Leininger S, Olenyuk B, Stang PJ. Self-assembly of discrete cyclic nanostructures mediated by transition metals. Chem Rev 2000;100:853–907.
[4] Decher G. Fuzzy nanoassemblies:toward layered polymeric multicomposites.Science 1997;277:1232–7.
[5] Ding YS, Shen XF, Gomez S, et al. Hydrothermal growth of manganese dioxide into three-dimensional hierarchical nanoarchitectures. Adv Funct Mater2006;16:549–55.
[6] Li LB, Wu WQ, Rao HS, et al. Hierarchical zno nanorod-on-nanosheet arrays electrodes for efficient cdse quantum dot-sensitized solar cells. Sci China Mater 2016;59:807–16.
[7] Lai XY, Wang CR, Jin Q, et al. Synthesis and photocatalytic activity of hierarchical flower-like SrTiO3nanostructure. Sci China Mater 2015;58:192–7.
[8] Zhong LS, Hu JS, Cao AM, et al. 3D flowerlike ceria micro/nanocomposite structure and its application for water treatment and co removal. Chem Mater2007;19:1648–55.
[9] Zhong LS, Hu JS, Liang HP, et al. Self-assembled 3D flowerlike iron oxide nanostructures and their application in water treatment. Adv Mater2006;18:2426–31.
[10] Liu B, Zeng HC. Mesoscale organization of cuo nanoribbons:formation of‘‘dandelions”. J Am Chem Soc 2004;126:8124–5.
[11] Subramanian V, Zhu H, Vajtai R, et al. Hydrothermal synthesis and pseudocapacitance properties of MnO2nanostructures. J Phys Chem B2005;109:20207–14.
[12] Li WN, Yuan J, Shen XF, et al. Hydrothermal synthesis of structure-and shapecontrolled manganese oxide octahedral molecular sieve nanomaterials. Adv Funct Mater 2006;16:1247–53.
[13] Zhao M, Deng K, He L, et al. Core-shell palladium nanoparticle@metal-organic frameworks as multifunctional catalysts for cascade reactions. J Am Chem Soc2014;136:1738–41.
[14] Zhao M, Yuan K, Wang Y, et al. Metal-organic frameworks as selectivity regulators for hydrogenation reactions. Nature 2016;539:76.
[15] Li M, Feng N, Liu M, et al. Hierarchically porous carbon/red phosphorus composite for high-capacity sodium-ion battery anode. Sci Bull2018;63:982–9.
[16] Yang ZD, Chang ZW, Zhang Q, et al. Decorating carbon nanofibers with Mo2C nanoparticles towards hierarchically porous and highly catalytic cathode for high-performance Li-O2batteries. Sci Bull 2018;63:433–40.
[17] Cao A, Hu J, Wan L. Morphology control and shape evolution in 3D hierarchical superstructures. Sci China Chem 2012;55:2249–56.
[18] Joo SH, Park JY, Tsung CK, et al. Thermally stable pt/mesoporous silica coreshell nanocatalysts for high-temperature reactions. Nat Mater 2009;8:126–31.
[19] De Rogatis L, Cargnello M, Gombac V, et al. Embedded phases:a way to active and stable catalysts. ChemSusChem 2010;3:24–42.
[20] Bian SW, Ma Z, Cui ZM, et al. Synthesis of micrometer-sized nanostructured magnesium oxide and its high catalytic activity in the claisen-schmidt condensation reaction. J Phys Chem C 2008;112:11340–4.
[21] Cui ZM, Chen Z, Cao CY, et al. Coating with mesoporous silica remarkably enhances the stability of the highly active yet fragile flower-like mgo catalyst for dimethyl carbonate synthesis. Chem Commun 2013;49:6093–5.
[22] Yang SL, Huang PP, Peng L, et al. Hierarchical flowerlike magnesium oxide hollow spheres with extremely high surface area for adsorption and catalysis. J Mater Chem A 2016;4:400–6.
[23] Chong WH, Chin LK, Tan RL, et al. Stirring in suspension:nanometer-sized magnetic stir bars. Angew Chem Int Ed 2013;52:8570–3.
[24] Yang S, Cao C, Sun Y, et al. Nanoscale magnetic stirring bars for heterogeneous catalysis in microscopic systems. Angew Chem Int Ed 2015;54:2661–4.
[25] Zhou X, Chen C, Cao C, et al. Enhancing reaction rate in a pickering emulsion system with natural magnetotactic bacteria as nanoscale magnetic stirring bars. Chem Sci 2018;9:2575–80.