SYNTHESIS OF CARBON NANOTUBES VIA CATALYTIC CHEMICAL VAPOR DEPOSITION METHOD AND THEIR MODIFICATION WITH PREYSSLER ANION, [NaP5W30O110]14-

Bamoharram, Fatemeh F.; Ahmadpour, Ali; Heravi, Majid Μ.

doi:10.1142/s1793292011002627

Cited by 9 publications

(4 citation statements)

References 43 publications

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“…The chemical vapour deposition (CVD) method has been used for the synthesis of the MWCNTs which was described in our previous paper [19]. For purification, raw MWCNT samples were sonicated in diluted nitric acid (30% HNO 3 ) for 30 min at room temperature, filtered, washed several times with distilled water and finally dried at 120°C overnight.…”

Section: Synthesis and Modification Of The Mwcntsmentioning

confidence: 99%

“…Here, we report the synthesis of the nanoCs-Preyssler, and the application of the multi-walled CNTs (MWCNTs) as the nanostructured porous supports for the immobilisation of these nanoparticles. In our previous paper, we investigated the performance and the capability of the nanoPreyssler, with H + as the counter cation, for a chemical modification of the MWCNTs [19]. To present a new contribution to this area of research, it is highly desirable to examine what occurs if some protons of the nanoPreyssler are replaced with Cs + , which is very larger than H + , and use it in a chemical modification of the MWCNTs.…”

Section: Introductionmentioning

confidence: 99%

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Endohedral functionalisation of multi‐wall carbon nanotubes by acidic cesium salt of Preyssler in nanosize

Bamoharram

Hasanzadeh

Heravi

et al. 2014

Micro & Nano Letters

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Nanoparticles of acidic cesium salt of Preyssler by a one-step solid-state reaction at room temperature, were synthesised and characterised by Fourier transform infrared spectroscopy, titration, inductively coupled plasma and transmission electron microscopy (TEM), respectively. These uniform nanoparticles showed an average size of 2-10 nm. Multi-walled carbon nanotubes (MWCNTs) were synthesised by the catalytic chemical vapour deposition method and used as nanostructured porous supports for the immobilisation of the nanoparticles of the acidic cesium salt of Preyssler. The TEM image showed a bamboo-like structure with inner and outer diameters of about 20 and 35 nm, respectively. The modification of the MWCNTs by the synthesised nanoparticles was successfully achieved via the impregnation method. The infrared analysis showed that the basic structure of Preyssler is preserved and left intact. The TEM images also showed an endohedral functionalisation of the MWCNTs.

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Section: Synthesis and Modification Of The Mwcntsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Endohedral functionalisation of multi‐wall carbon nanotubes by acidic cesium salt of Preyssler in nanosize

Bamoharram

Hasanzadeh

Heravi

et al. 2014

Micro & Nano Letters

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“…1 In general, methane, 2-4 ethylene, [5][6][7] acetylene [8][9][10] and other hydrocarbons have been used as carbon sources for CNT synthesis. Apart from these hydrocarbons, the use of waste polymers as feedstock is more environmental and economical for CNT synthesis.…”

Section: Introductionmentioning

confidence: 99%

Ni-Mg Bimetallic Catalysts for Preparation of Multi-Walled Carbon Nanotubes from Polypropylene: Influence of the Ratio of Ni/Mg

Shen

Gong

Zheng

et al. 2016

NANO

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This study designs Ni-Mg bimetallic catalysts for preparation of multi-walled carbon nanotubes (MWCNTs) from polypropylene (PP). The study further investigates the in°uence of Mg content on the catalytic activity of Ni catalyst. It is found that bimetallic Ni-Mg catalysts have higher reduction temperature, smaller Ni particle size and improved stability. Consequently, the addition of Mg not only enhances the yield of MWCNTs, but simultaneously improves the morphology and graphitization of MWCNTs. The activities of the bimetallic Ni-Mg catalysts are dependent on their composition. Among the di®erent Ni-Mg bimetallic catalysts ration, Ni-Mg catalyst shows the highest activity when the ratio of Ni/Mg is 9/1. Moreover, the obtained MWCNTs presents smooth surface with highest graphitization degree. With our bimetallic Ni-Al catalyst, it is promising to achieve mass production of MWCNTs by using waste polymers as feedstock.

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“…Encouraged by our recent results with HPAs [15][16][17][18][19][20][21], in the present work, we used multiwalled carbon nanotubes (MWCNTs) materials as nanostructured porous supports for the immobilisation of potassium salts of the monosubstituted Keggin polyoxometalates. In our previous work, we investigated the performance and capability of sodium-30-tungstopentaphosphate for the modifying of MWCNTs [22]. To make a new contribution to the field of nanotechnology, it is of great interest to know what occurs if the potassium salts of the monosubstituted Keggin polyoxometalates are used in the chemical modification of MWCNTs.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterisation of modified carbon nanotubes with potassium salts of the monosubstituted Keggin polyoxometalates

Bamoharram¹,

Poorzaki²,

Morsali³

et al. 2014

Micro & Nano Letters

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A novel hybrid of potassium salts of the monosubstituted Keggin polyoxometalates/carbon nanotube nanocomposite is synthesised. Multiwalled carbon nanotubes (MWCNTs) were synthesised by the catalytic chemical vapour deposition method. The characterisation of the materials by Fourier transform infrared spectroscopy, and transmission electron microscopy, shows that the functionalisation of MWCNTs by potassium salts of the monosubstituted Keggin polyoxometalates was successfully achieved via the impregnation method in both endohedral and exohedral forms. Theoretical studies for the covalent conjugation of Keggin polyoxometalates to carbon nanotubes, showed that the functionalisation of MWCNTs by some groups such as COOH and OH is required.

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SYNTHESIS OF CARBON NANOTUBES VIA CATALYTIC CHEMICAL VAPOR DEPOSITION METHOD AND THEIR MODIFICATION WITH PREYSSLER ANION, [NaP₅W₃₀O₁₁₀]^14-

Cited by 9 publications

References 43 publications

Endohedral functionalisation of multi‐wall carbon nanotubes by acidic cesium salt of Preyssler in nanosize

Endohedral functionalisation of multi‐wall carbon nanotubes by acidic cesium salt of Preyssler in nanosize

Ni-Mg Bimetallic Catalysts for Preparation of Multi-Walled Carbon Nanotubes from Polypropylene: Influence of the Ratio of Ni/Mg

Synthesis and characterisation of modified carbon nanotubes with potassium salts of the monosubstituted Keggin polyoxometalates

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