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
Colloidal Nanocrystals with Molecular Metal Chalcogenide Surface Ligands
TL;DR: It is found that various molecular metal chalcogenide complexes can serve as convenient ligands for colloidal nanocrystals and nanowires and can be converted into semiconducting complexes.
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Superparamagnetic graphene oxide–Fe3O4nanoparticles hybrid for controlled targeted drug carriers
TL;DR: In this paper, a superparamagnetic graphene oxide-Fe3O4nanoparticles hybrid was prepared via a simple and effective chemical precipitation method, which was then loaded with doxorubicin hydrochloride (DXR) and the loading capacity was as high as 1.08 mg mg−1.6 wt% by atomic absorption spectrometry.
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Catalytic performance of Pt nanoparticles on reduced graphene oxide for methanol electro-oxidation
TL;DR: In this article, a simple approach for the deposition of platinum (Pt) nanoparticles onto surfaces of graphite oxide (GO) nanosheets with particle size in the range of 1-5 nm by ethylene glycol reduction was investigated.
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Surface Modification of Graphene Nanosheets with Gold Nanoparticles: The Role of Oxygen Moieties at Graphene Surface on Gold Nucleation and Growth
Gil Gonçalves,Paula A.A.P. Marques,Carlos M. Granadeiro,Helena I. S. Nogueira,Manoj K. Singh,José Grácio +5 more
TL;DR: In this article, the authors show that the presence of oxygen functionalities at the graphene surface provides reactive sites for the nucleation and growth of gold nanoparticles, which are effectively grown at functionalized graphene surfaces using a simple chemical method in aqueous medium.
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A generalized ligand-exchange strategy enabling sequential surface functionalization of colloidal nanocrystals.
Angang Dong,Xingchen Ye,Jun Chen,Yijin Kang,Thomas R. Gordon,James M. Kikkawa,Christopher B. Murray +6 more
TL;DR: A facile ligand-exchange approach is reported, which enables sequential surface functionalization and phase transfer of colloidal NCs while preserving the NC size and shape and represents an important step toward controllably engineering the surface properties of NCs.