Carbon Hybrid Materials—Design, Manufacturing, and Applications

Abstract

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.

Carbon Nanotubes as an Alternative to Copper Wires in Electrical Machines: A Review

“…After the annealing process, copper has good restoring capability (original state/soft state). Aluminium is also used as a conducting material after copper, but the aluminium material has comparatively less conducting and mechanical properties [4,5]. This conventional material consumes more power during the conversion stage and load variation conditions.…”

Pt-Al/Grafen-KNT Nanoyapılarının Mekanik Performansı; Bir Moleküler Dinamik Simülasyonu

“…Farklı malzeme bileşenlerinin birleştirilmesiyle oluşturulan hibrit kompozitler, üstün mekanik özelliklere sahip olmaları nedeni ile son yıllarda, malzeme bilimi ve mühendisliği alanında yeni nesil malzemeler olarak büyük önem kazanmaktadırlar [1,2]. Özellikle metallerle karbon bazlı yapıların bir araya getirildiği hibrit kompozitler, hem metalin dayanıklılığından hem de karbonun hafifliği ve yüksek mukavemetinden faydalanarak benzersiz özellikler sunmaktadır [3][4][5][6].…”

Advanced Carbon Nanostructures: Synthesis, Properties, and Applications

“…The papers presented with discuss aspects of synthesis, sorting, functionalization, and characterization of chemical and physical properties, leading to many interesting applications being highlighted and experimental, theoretical, and modelling aspects being discussed. In the Special Issue, 15 papers were published, consisting of 2 reviews [ 4 , 5 ] and 13 research papers [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ].…”

“…In [ 6 ], the authors synthesized carbon hybrid materials mainly using the gas-phase pyrolysis method. They performed characterization of hybrids by microscopy and thermogravimetric analysis ( Figure 3 ).…”