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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/20761
Title: Reversible control of pore size and surface chemistry of mesoporous silica through dynamic covalent chemistry: philicity mediated catalysis
Authors: Singh D.K.
Kumar, B. V.V.S.Pavan
Eswaramoorthy M.
Published in: Nanoscale
Abstract: Here, we report the synthesis of adaptive hybrid mesoporous silica having the ability to reconfigure its pore properties such as pore size and philicity in response to the external environment. Decyl chains were reversibly appended to the pore walls of silica through imine motifs as dynamic covalent modules to switch the pore size and philicity in response to pH. This switching of pore properties was used to gate the access of reactants to the gold nanoparticles immobilized inside the nanopores, thus enabling us to turn-on/turn-off the catalytic reaction. The use of such dynamic covalent modules to govern pore properties would enable the realization of intelligent hybrids capable of controlling many such chemical processes in response to stimuli. © The Royal Society of Chemistry.
Citation: Nanoscale, 7(32): 13358-13362
URI: https://doi.org/10.1039/c5nr02959g
http://repository.iitr.ac.in/handle/123456789/20761
Issue Date: 2015
Publisher: Royal Society of Chemistry
Keywords: Catalysis
Gold nanoparticles
Pore size
Silica
Surface chemistry
Catalytic reactions
Chemical process
Dynamic covalent chemistry
External environments
Mesoporous Silica
Pore property
Pore wall
Reversible control
Nanopores
ISSN: 20403364
Author Scopus IDs: 57198856880
55266247800
55983367600
Author Affiliations: Singh, D.K., Nanomaterials and Catalysis Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, 560064, India
Pavan Kumar, B.V.V.S., Nanomaterials and Catalysis Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, 560064, India
Eswaramoorthy, M., Nanomaterials and Catalysis Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bengaluru, 560064, India
Corresponding Author: Eswaramoorthy, M.; Nanomaterials and Catalysis Lab, Jakkur P.O., India; email: eswar@jncasr.ac.in
Appears in Collections:Journal Publications [CY]

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