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Dual metal nanoparticles within multicompartmentalized mesoporous organosilicas for efficient sequential hydrogenation
- Source :
- Nature Communications, Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Controlling localization of multiple metal nanoparticles on a single support is at the cutting edge of designing cascade catalysts, but is still a scientific and technological challenge because of the lack of nanostructured materials that can not only host metal nanoparticles in different sub-compartments but also enable efficient molecular transport between different metals. Herein we report a multicompartmentalized mesoporous organosilica with spatially separated sub-compartments that are connected by short nanochannels. Such a unique structure allows co-localization of Ru and Pd nanoparticles in a nanoscale proximal fashion. The so designed cascade catalyst exhibits an order of magnitude activity enhancement in the sequential hydrogenation of nitroarenes to cyclohexylamines compared with its mono/bi-metallic counterparts. Crucially, an interesting phenomenon of neighboring metal-assisted hydrogenation via hydrogen spillover is observed, contributing to the significant enhancement in catalytic efficiency. The multicompartmentalized architectures along with the revealed mechanism of accelerated hydrogenation provide vast opportunity for designing efficient cascade catalysts.<br />Controlling localization of multiple metal nanoparticles on a single support is at the cutting edge of designing innovatory cascade catalysts. Here, the authors report a multicompartmentalized mesoporous organosilica to spatially position different metal nanoparticles in intimate proximity for efficient sequential hydrogenation reactions.
- Subjects :
- Heterogeneous catalysis
Multidisciplinary
Materials science
Catalyst synthesis
Science
General Physics and Astronomy
Nanotechnology
General Chemistry
Article
General Biochemistry, Genetics and Molecular Biology
Catalysis
Mesoporous organosilica
Cascade
Nanoparticles
Porous materials
Hydrogen spillover
Catalytic efficiency
Metal nanoparticles
Nanoscopic scale
Order of magnitude
Subjects
Details
- ISSN :
- 20411723
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....b8a85960b5d5dde1d05901025ce68f50