Synthesis Tuning for Manufacturing Carbon Hybrid Materials

Kim, Sung Hoon; Chitranshi, Megha; Pujari, Anuptha; Ng, Vianessa; Kubley, Ashley; Hudepohl, Ronald; Shanov, Vesselin; Anantharaman, Devanathan; Chen, Daniel; Chauhan, Devika; Schulz, Mark J.

doi:10.5185/amlett.2021.111682

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…The CNTs are grown from the catalyst, which aggregates to form a long CNT sock. The sock is collected at the outlet of the ceramic tube and is rolled into a sheet with the help of a translator covered with a Teflon sheet wound on a drum in a glovebox [ 32 , 33 ]. Video presentations that further describe the methods are given in [ 34 ].…”

Section: Carbon Hybrid Materials (Chm) Manufacturingmentioning

confidence: 99%

Carbon Hybrid Materials—Design, Manufacturing, and Applications

et al. 2023

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Carbon nanotubes (CNTs) have extraordinary properties and are used for applications in various fields of engineering and research. Due to their unique combination of properties, such as good electrical and thermal conductivity and mechanical strength, there is an increasing demand to produce CNTs with enhanced and customized properties. CNTs are produced using different synthesis methods and have extraordinary properties individually at the nanotube scale. However, it is challenging to achieve these properties when CNTs are used to form macroscopic sheets, tapes, and yarns. To further improve the properties of macroscale forms of CNTs, various types of nanoparticles and microfibers can be integrated into the CNT materials. The nanoparticles and microfibers can be chosen to selectively enhance the properties of CNT materials at the macroscopic level. In this paper, we propose a technique to manufacture carbon hybrid materials (CHMs) by combining CNT non-woven fabric (in the form of sheets or tapes) with microfibers to form CNT-CF hybrid materials with new/improved properties. CHMs are formed by integrating or adding nanoparticles, microparticles, or fibers into the CNT sheet. The additive materials can be incorporated into the synthesis process from the inlet or the outlet of the reactor system. This paper focuses on CHMs produced using the gas phase pyrolysis method with microparticles/fibers integrated at the outlet of the reactor and continuous microfiber tapes integrated into the CNT sheet at the outlet using a tape feeding machine. After synthesis, characterizations such as microscopy and thermogravimetric analysis were used to study the morphology and composition of the CNTs, and examples for potential applications are discussed in this paper.

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Section: Carbon Hybrid Materials (Chm) Manufacturingmentioning

confidence: 99%

Carbon Hybrid Materials—Design, Manufacturing, and Applications

et al. 2023

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Flexible and Lightweight Carbon Nanotube Composite Filter for Particulate Matter Air Filtration

et al. 2022

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Particulate Matter (PM) has become an important source of air pollution. We proposed a flexible and lightweight carbon nanotube (CNT) composite air filter for PM removal. The developed CNT filtering layers were fabricated using a floating catalyst chemical vapor deposition (FC-CVD) synthesis process and then combined with conventional filter fabrics to make a composite air filter. Filtration performance for CNT filtering layer alone and composited with other conventional filter fabrics for particles size 0.3 μm to 2.5 μm was investigated in this study. The CNT composite filter is highly hydrophobic, making it suitable for humid environments. The CNT composite filter with two layers of tissue CNT performed best and achieved a filtration efficiency over 90% with a modest pressure drop of ~290 Pa for a particle size of 2.5 μm. This CNT composite filter was tested over multiple cycles to ensure its reusability. The developed filter is very light weight and flexible and can be incorporated into textiles for wearable applications or used as a room filter.

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Synthesis Tuning for Manufacturing Carbon Hybrid Materials

Cited by 2 publications

References 14 publications

Carbon Hybrid Materials—Design, Manufacturing, and Applications

Carbon Hybrid Materials—Design, Manufacturing, and Applications

Flexible and Lightweight Carbon Nanotube Composite Filter for Particulate Matter Air Filtration

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