Decorating carbon nanotubes with metal or semiconductor nanoparticles

Georgakilas, Vasilios; Gournis, Dimitrios; Tzitzios, Vasileios; Pasquato, Lucia; Guldi, Dirk M.; Prato, Maurizio

doi:10.1039/b700857k

Cited by 639 publications

(432 citation statements)

References 154 publications

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“…The globally pursued scientific and research works reassert that carbon nanomaterials possess so far unprecedented electrical, mechanical, thermal, optical and magnetic properties [1][2][3][4][5][6][7]. Moreover, nanocomposite materials, in this case CNT-NPs (Carbon NanoTube-NanoParticles) nanocomposites achieve, due to synergy, improved properties, in particular electrical properties by integrating two types of materials: carbon and metal, therefore can be applied in sensors of chemical and biological substances, in which nanocomposites are a chemically active element [1,3,4].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, nanocomposite materials, in this case CNT-NPs (Carbon NanoTube-NanoParticles) nanocomposites achieve, due to synergy, improved properties, in particular electrical properties by integrating two types of materials: carbon and metal, therefore can be applied in sensors of chemical and biological substances, in which nanocomposites are a chemically active element [1,3,4]. The currently known nanocomposites consisting of carbon nanotubes together with nanoparticles of one (Au, Ag, Pt, Pd, Rh, Re) [5,6,[8][9][10] or more (Pd and Rh, Pt and Ru, Pt-Ru-Mo) [11][12][13] metals deposited on their surface are manufactured with diverse methods. In order to be able to apply CNT-NPs nanocomposites more effectively, a technology must be devised in modern industry enabling to control the uniform deposition of nanoparticles of a given metal onto the surface of carbon nanotubes.…”

Section: Introductionmentioning

confidence: 99%

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The MWCNTs-Rh Nanocomposite Obtained By The New High-Temperature Method

Dobrzańska-Danikiewicz¹,

Cichocki²,

Łukowiec³

2015

Archives of Metallurgy and Materials

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A nanocomposite was fabricated during the research undertaken, consisting of multiwalled carbon nanotubes coated with rhodium nanoparticles by the new high-temperature method being the subject of the patent claim. High quality multiwalled carbon nanotubes (MWCNTs) with the length of 100÷500 nm and the diameter of 8÷20 nm obtained in advance with Catalytic Chemical Vapour Deposition (CVD) were employed in the investigations. The nanotubes manufactured under the own research contain small amounts of metallic impurities and amorphous carbon deposits. Multiwalled carbon nanotubes functionalisation in acids was applied to deposit rhodium nanoparticles onto the surface of carbon nanotubes, and then the material was placed in a solution being a precursor of rhodium nanoparticles. The material prepared was next placed in a quartz vessel and subjected to high-temperature reduction in the atmosphere of argon to deposit rhodium nanoparticles onto the surface of multiwalled carbon nanotubes. The following examinations were performed, respectively: MWCNTs fabrication, fabrication of a CNT-NPs (Carbon NanoTube-NanoParticles) nanocomposite material; the characterisation of the materials produced including examination of the structure and morphology, and the assessment of rhodium nanoparticles distribution on the surface of carbon nanotubes. Microand spectroscopy techniques were employed to characterise the structure of the nanocomposites obtained.Keywords: carbon nanotubes, nanocomposite materials, rhodium nanoparticles, transmission electron microscopy W ramach wykonanych badań wytworzono nanokompozyt składający się z wielościennych nanorurek węglowych pokrytych nanocząsteczkami rodu nową wysokotemperaturową metodą, będącą przedmiotem zgłoszenia patentowego. W badaniach wykorzystano wysokiej jakości wielościenne nanorurki węglowe MWCNTs o długości 100÷500 nm i średnicy 8÷20 nm uprzednio otrzymane w procesie katalityczno-chemicznego osadzania z fazy gazowej (CCVD). Wytworzone w ramach prac własnych nanorurki zawierają nieznaczne ilości zanieczyszczeń metalicznych i amorficznych depozytów węglowych. W celu osadzenia nanocząsteczek rodu na powierzchni nanorurek węglowych zastosowano funkcjonalizację wielościennych nanorurek węglowych w kwasach, następnie materiał umieszczono w roztworze będącym prekursorem nanocząsteczek rodu. Przygotowany materiał umieszczono w dalszej kolejności w kwarcowym naczyniu i poddano redukcji wysokotemperaturowej w atmosferze argonu w celu osadzenia nanocząsteczek rodu na powierzchni wielościennych nanorurek węglowych. Wykonane badania obejmują kolejno: wytworzenie MWCNTs, wytworzenie materiału nanokompozytowego typu nanorurki węglowe -nanocząsteczki (CNT-NPs), scharakteryzowanie wytworzonego materiału obejmujące badanie jego struktury i morfologii oraz ocenę rozmieszczenia nanocząsteczek rodu na powierzchni nanorurek węglowych. Dla scharakteryzowania struktury otrzymanych nanokompozytów zastosowano techniki mikro-i spektroskopowe.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The MWCNTs-Rh Nanocomposite Obtained By The New High-Temperature Method

Dobrzańska-Danikiewicz¹,

Cichocki²,

Łukowiec³

2015

Archives of Metallurgy and Materials

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“…On the other hand nanoparticles have attracted the researchers because of their unique chemical and physical properties [4,5]. CNTs hybridized with metal nanoparticles bring forth a new class of nanostructured materials into focus [6][7][8] because of their unique resultant physical properties. Such CNT/metal nanohybrid materials find wide application in sensor devices [9], as catalysts for fuel cells [10,11], in solar cells [12,13], as fillers [14,15], and so forth.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence from SWCNT/Cu Hybrid Nanostructure Synthesized by a Soft Chemical Route

Paul

Mitra

2012

ISRN Optics

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We report a simple wet chemical technique to coat single wall carbon nanotubes (SWCNTs) with Cu nanoparticles. The SWCNT/Cu hybrid nanostructure has been characterized using field emission scanning electron microscopy (FESEM), highresolution transmission electron microscopy (HRTEM), energy dispersive X-ray analysis (EDAX), X-ray diffraction (XRD) study, and Raman spectroscopy. Characteristic optical properties of the nanohybrid structure have been identified through UV-Vis and photoluminescence (PL) spectroscopy. When excited by a radiation of 400 nm wavelength, PL emission in the visible range of 480-620 nm was observed due to charge transfer. This property may be exploited in photovoltaic cells, solar energy conversion, and sensor devices.

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“…New multifunctional nanoparticle-nanotube hybrid systems, due to their unique and superior properties compared with their pure counterparts, increasingly forming the foundation of transformational developments in areas as diverse as electronics, photonics, catalysis, biotechnology, and energy storage among many other applications (Wu et al 2011;Mackiewicz et al 2008;Georgakilas et al 2007;Kong et al 2007;Li et al 2009). Single-walled aluminosilicate nanotubes (AlSiNTs) are excellent candidates for fabricating various functional nanohybrid materials due to their well-defined one-dimensional structure (Yucelen et al 2011;Thill et al 2012), vast range of tunable compositions (Avellan et al 2014), functionalizable surfaces (Kang et al 2011), attainability in pure form without a catalyst (Yucelen et al 2011), and ability to readily form hydrogels, transparent films, powders, and coatings (Jiravanichanun et al 2011;Kuroda et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and immobilization of silver nanoparticles on aluminosilicate nanotubes and their antibacterial properties

et al. 2015

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A novel colloidal method is presented to synthesize silver nanoparticles on aluminosilicate nanotubes. The technique involves decomposition of AgNO 3 solution to Ag nanoparticles in the presence of aluminosilicate nanotubes at room temperature without utilizing of reducing agents or any organic additives. Aluminosilicate nanotubes are shown to be capable of providing a unique chemical environment, not only for in situ conversion of Ag ? into Ag 0 , but also for stabilization and immobilization of Ag nanoparticles. The synthesis strategy described here could be implemented to obtain self-assembled nanoparticles on other single-walled metal oxide nanotubes for unique applications. Finally, we demonstrated that nanotube/nanoparticle hybrid show strong antibacterial activity toward Gram-positive Staphylococcus epidermidis and Gram-negative Escherichia coli.

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Decorating carbon nanotubes with metal or semiconductor nanoparticles

Cited by 639 publications

References 154 publications

The MWCNTs-Rh Nanocomposite Obtained By The New High-Temperature Method

The MWCNTs-Rh Nanocomposite Obtained By The New High-Temperature Method

Photoluminescence from SWCNT/Cu Hybrid Nanostructure Synthesized by a Soft Chemical Route

Synthesis and immobilization of silver nanoparticles on aluminosilicate nanotubes and their antibacterial properties

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