Xiao-Qi Li , Peng-Xiang Hou , Chang Liu , Hui-Ming Cheng
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引用次数: 18
Abstract
Metallic single-wall carbon nanotubes (m-SWCNTs) have a high electrical conductivity due to ballistic electron transport, and have a bright future for use in nanocircuitry, conductive fibers, and transparent conductive films. To realize these applications, it is essential to obtain pure, high-quality m-SWCNTs on a large scale. In recent years, many techniques such as density-gradient centrifugation, gel chromatography, selective etching, direct growth by catalyst design and external electric field assistance have been developed to prepare m-SWCNTs. Here we present a state-of-the-art overview of the preparation of m-SWCNTs focusing on the principles, methods, and their advantages and limitations. The key challenges remaining for obtaining high quality m-SWCNTs with a high yield are discussed, and the developing trend for the selective preparation of m-SWCNTs is examined.
期刊介绍：
The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.
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