Journal ArticleDOI
'Click' preparation of CuPt nanorod-anchored graphene oxide as a catalyst in water.
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TLDR
The results of this study clearly demonstrate that nonpolar CuPt nanorods immobilized on GO can function as a catalyst in an aqueous solution and that GO can be used as a catalytic nanorod support.Abstract:
In this paper, a simple and powerful method of producing nanoparticle-anchored graphene oxide (GO) composites using a 'click' reaction is demonstrated. This method affords a facile means of anchoring of nanoparticles with various shapes and sizes on the GO. CuPt nanorods with controlled size, aspect ratio (from 1 to 11), and uniformity are synthesized. Transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy measurements are made to monitor the formation and characterize the properties of the CuPt nanorod-grafted GO composites. Their catalytic properties in the water phase are investigated using an o-phenylenediamine oxidation reaction. The results of this study clearly demonstrate that nonpolar CuPt nanorods immobilized on GO can function as a catalyst in an aqueous solution and that GO can be used as a catalytic nanorod support.read more
Citations
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Graphene-supported nanoelectrocatalysts for fuel cells: synthesis, properties, and applications.
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Functionalization of carbon nanomaterials for advanced polymer nanocomposites: A comparison study between CNT and graphene
Vinay Deep Punetha,Sravendra Rana,Hye Jin Yoo,Alok Chaurasia,James T. McLeskey,Madeshwaran Sekkarapatti Ramasamy,Nanda Gopal Sahoo,Jae Whan Cho +7 more
TL;DR: In this paper, a review article collectively introduces a variety of reactions for functionalization of CNTs and graphene and fabrication of their polymer nanocomposites and compares the significance of different functionalization approaches on their composite properties.
Journal ArticleDOI
Metal nanoparticles supported on two-dimensional graphenes as heterogeneous catalysts
TL;DR: The catalytic activity of metal nanoparticles (MNPs) is highly dependent on the nature of the support as mentioned in this paper, which includes a large surface area, strong metal-support interaction, and presence of active sites that participate in the reaction mechanism.
Journal ArticleDOI
Efficient colorimetric pH sensor based on responsive polymer-quantum dot integrated graphene oxide.
TL;DR: A versatile platform for a highly efficient and stable graphene oxide (GO)-based optical sensor that exhibits distinctive ratiometric color responses and can be expanded easily to various other multifunctional, GO-based sensors by using alternate stimuli-responsive polymers.
Journal ArticleDOI
Design and Synthesis of 3D Ordered Macroporous CeO2‐Supported Pt@CeO2‐δ Core–Shell Nanoparticle Materials for Enhanced Catalytic Activity of Soot Oxidation
TL;DR: The fabrication of multifunctional nanostructure material is emerging as an important fi eld of research in connection with heterogeneous catalytic reaction and it is clear that the size effect of 3DOM structure with big pore size can remarkably improve the contact effi ciency between solid reactant and catalyst.
References
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Journal ArticleDOI
Rapid Separation and Purification of Nanoparticles in Organic Density Gradients
TL;DR: Nanoseparation and concomitant purification of nanoparticles by ultracentrifugation in a nonhydroxylic organic density gradient shows that colloidal particles can be separated not only by size but also morphology.
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Fabrication of gold nanoparticle/graphene oxide nanocomposites and their excellent catalytic performance
TL;DR: A simple method was used to fabricate gold nanoparticle/graphene oxide nanocomposites that exhibited unexpected catalytic activity for the Suzuki-Miyaura coupling reaction of chlorobenzene and phenylboronic acid.
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Synthesis of CuPt Nanorod Catalysts with Tunable Lengths
Qingsheng Liu,Zhen Yan,Nathaniel L. Henderson,J. Chris Bauer,D. Wayne Goodman,James D. Batteas,Raymond E. Schaak +6 more
TL;DR: These mixed-metal nanoparticles show excellent catalytic properties for CO oxidation, with light-off temperatures that are nearly 200 K below those of conventional supported Pt catalysts.
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One-Pot Synthesis of ABC Type Triblock Copolymers via a Combination of “Click Chemistry” and Atom Transfer Nitroxide Radical Coupling Chemistry
TL;DR: In this article, a new strategy for one-pot synthesis of ABC type triblock copolymers via a combination of click chemistry and atom transfer nitroxide radical coupling (ATNRC) reaction was suggested, and poly(tert-butyl acrylate)-block-polystyrene-blockpoly(ethylene oxide) (PtBA−PS−PEO) and poly (tertbutyl-acrylate) block-poly-poly(ϵ-caprolactone) (pylmethylpiperidine-1-ox
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Fabrication and Mechanical Properties of Large-Scale Freestanding Nanoparticle Membranes
TL;DR: It is demonstrated that a drying-mediated self-assembly process can be used to create close-packed monolayer membranes that span holes tens of micrometers in diameter and that the membrane's elastic response is set by how tightly the ligands are bound to the particle cores and by the ligand-ligand interactions.