Carbyne forms of carbon: evidence for their existence.
نویسنده
چکیده
منابع مشابه
Carbyne with finite length: The one-dimensional sp carbon
Carbyne is the one-dimensional allotrope of carbon composed of sp-hybridized carbon atoms. Definitive evidence for carbyne has remained elusive despite its synthesis and preparation in the laboratory. Given the remarkable technological breakthroughs offered by other allotropes of carbon, including diamond, graphite, fullerenes, carbon nanotubes, and graphene, interest in carbyne and its unusual...
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The elastic modulus of carbyne, a one-dimensional carbon chain, was recently predicted to be much higher than graphene. Inspired by this discovery and the fundamental correlation between elastic modulus and thermal conductivity, we investigate the intrinsic thermal transport in two carbon allotropes: carbyne and cumulene. Using molecular dynamics simulations, we discover that thermal conductivi...
متن کاملCarbyne: The rational synthesis of an sp-hybridized carbon allotrope
Carbon allotropes from sp-hybridized carbon (diamond) and sp-hybridized carbon (graphite, graphene, fullerenes, nanotubes) have well-established properties, many of which are technologically relevant. A carbon allotrope constructed from sp-hybridized carbon atoms (carbyne), on the other hand, remains rare and presents a challenging synthetic goal. In recent years, we have developed methods for ...
متن کاملCarbon: a new view of its high-temperature behavior.
An increasing body of research indicates that carbon can exist in a number of polymorphic "carbyne" forms. It is proposed that these forms occur because of a shift to triple bonding in the carbon system as temperature increases above 2600 K. It is also proposed that graphite can dissociate into triple-bonded molecules by a simple mechanism.
متن کاملChains of carbon atoms: A vision or a new nanomaterial?
Linear strings of sp(1)-hybridized carbon atoms are considered as a possible phase of carbon since decades. Whereas the debate about the stability of the corresponding bulk phase carbyne continues until today, the existence of isolated chains of carbon atoms has meanwhile been corroborated experimentally. Since graphene, as the two-dimensional sp(2)-bonded allotrope of carbon, has become a vast...
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عنوان ژورنال:
- Science
دوره 229 4712 شماره
صفحات -
تاریخ انتشار 1985