Arc Discharge and Laser Ablation Synthesis of Singlewalled Carbon Nanotubes

Hornbostel, B.; Haluška, M.; Čech, Jiří; Dettlaff, U.; Roth, S.

doi:10.1007/1-4020-4574-3_1

Cited by 24 publications

(9 citation statements)

References 31 publications

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“…The harvested nanomaterial from different runs was carefully mechanically homogenized with a mixing apparatus and then placed into an industrial tumbler for approximately 24 h. A desired side effect was that the web-like structure of the nanomaterial turned to a fine powder. By means of our quality control protocol [4,5,9], the SWCNT content was estimated to be in the range of 30 to 40%, which is quite reasonable for arc discharge (ArcD) material. The mean length of the tubes was found to be in the range of 4-6 µm.…”

Section: Methodsmentioning

confidence: 99%

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Single‐walled carbon nanotubes/polycarbonate composites: basic electrical and mechanical properties

Hornbostel

Pötschke

Kotz

et al. 2006

Physica Status Solidi (b)

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The focus of this paper is to investigate the electrical conductivity and the mechanical properties of single-walled carbon nanotubes/polycarbonate composites. Two different direct incorporating methods were applied. In the first method PC and SWCNTs were mixed with different ratios in a small scale conical twin screw extruder. Here, additional variations in the feeding of the filler material were tested in order to improve the state of dispersion of the melt mixing method. The second one is the coagulation method, here, the filler material was suspended and the polymer material was dissolved in liquid organic substances. The mechanical properties were examined by tension tests and by measuring the Vickers hardness. It should be stressed, that the nanofiller material was provided in large batches (m > 100 g) and extensively mechanically homogenized in order to eliminate quality fluctuations and density differences in the SWCNT occurrences. The filler material was synthesized in a Krätschmer reactor (carbon arc). After homogenization, the nanomaterial was characterized. Based on this the SWCNT content was estimated to be between 30 and 40%, which is usual for arc discharge material.

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Section: Methodsmentioning

confidence: 99%

“…SWCNT material was produced using a Krätschmer reactor [3,4]. The anode contained a drilled hole where a catalyst-carbon mixture was placed into.…”

Section: Methodsmentioning

confidence: 99%

Single‐walled carbon nanotubes/polycarbonate composites: basic electrical and mechanical properties

Hornbostel

Pötschke

Kotz

et al. 2006

Physica Status Solidi (b)

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“…As-synthesized SWCNTs have also been further analyzed via various methods of separation to develop enriched ensembles of metallic-and semiconducting-SWCNTs [7], to further facilitate research and a move from the lab to the retail market. Synthesis of SWCNTs has thus always been key in progressing this field of research, with various techniques having been developed for this, including arc discharge [8,9], laser ablation [10,11], and chemical vapor deposition (CVD) [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The State of HiPco Single-Walled Carbon Nanotubes in 2019

Gangoli

Godwin²,

Reddy³

et al. 2019

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High-pressure carbon monoxide (HiPco)-synthesized single-walled carbon nanotubes (SWCNTs) have been a widely studied carbon nanomaterial for nearly two decades. It has been the de facto standard for SWCNT research, be it functionalization, separation and purification, or composites, as a result of the consistent, high-quality material that was made available at an affordable price to researchers worldwide. The recent shutdown of the HiPco reactor at Rice University has resulted in a scarcity of HiPco material available to the research community, and a new source of similar SWCNTs is desperately needed. Continued research and development on the design, materials used, and the overall process have led to a new HiPco material, referred to as NoPo HiPCO®, as an alternative to the erstwhile Rice HiPco SWCNTs. In this work, we have compared the two HiPco materials, and aim to provide more clarity for researchers globally on the state of HiPco SWCNTs for research and applications alike in 2019.

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“…4.4. It produces CNTs of very narrow diameter and suitable for laboratory production of both SWCNTs and MWCNTs (Hornbostel et al, 2006). Lately, other important techniques are being used for industrial and bulk scale production and manufacturing of CNTs, including cobalt-molybdenum catalytic (CoMoCat) process, high pressure carbon monoxide disproportionation technique, fluidized-bed synthesis (Dasgupta et al, 2011;Harris et al, 2008), flame synthesis (Wal et al, 2000), and solar energyÀbased techniques (Dasgupta et al, 2011).…”

Section: Methods Of Preparation Of Carbon Nanotubesmentioning

confidence: 99%