A planar-sheet nongraphitic zero-bandgap sp            <sup>2</sup>            carbon phase made by the low-temperature reaction of γ-graphyne

Aliev, A.E.; Guo, Y.; Fonseca, A.F.; Razal, J.M.; Wang, Z.; Galvão, D.S.; Bolding, C.M.; Chapman-Wilson, N.E.; Desyatkin, V.G.; Leisen, J.E.; Ribeiro Junior, L.A.; Kanegae, G.B.; Lynch, P.; Zhang, J.; Judicpa, M.A.; Parra, A.M.; Zhang, M.; Gao, E.; Hu, L.; Rodionov, V.O.; Baughman, R.H.

Авторы: Aliev Ali E., Guo Yongzhe, Fonseca Alexandre F., Razal Joselito M., Wang Zhong, Galvão Douglas S., Bolding Claire M., Chapman-Wilson Nathaniel E., Desyatkin Victor G., Leisen Johannes E., Ribeiro Junior Luiz A., Kanegae Guilherme B., Lynch Peter, Zhang Jizhen, Judicpa Mia A., Parra Aaron M., Zhang Mengmeng, Gao Enlai, Hu Lifang, Rodionov Valentin O., Baughman Ray H.
Журнал: Proceedings of the National Academy of Sciences of the United States of America
Том: 122
Номер: 5
Год издания: 2025
Издательство: National Academy of Sciences
Местоположение издательства: United States
DOI: 10.1073/pnas.2413194122
Аннотация: The highest sheet symmetry form of graphyne, with one triple bond between each neighboring hexagon in graphene, irreversibly transforms exothermically at ambient pressure and low temperatures into a nongraphitic, planar-sheet, zero-bandgap phase consisting of intrasheet-bonded sp2 carbons. The synthesis of this sp2 carbon phase is demonstrated, and other carbon phases are described for possible future synthesis from graphyne without breaking graphyne bonds. While measurements and theory indicate that the reacting graphyne becomes nonplanar because of sheet wrinkling produced by dimensional mismatch between reacted and nonreacted sheet regions, sheet planarity is regained when the reaction is complete. Although the observed elimination of triple bonds to make parallel planar sp2 carbon sheets likely requires ordered transformation within each sheet, diffraction data for reacted multisheet stacks indicate that the relative lateral positions of neighboring sheets are disordered, as predicted, since no crystalline diffraction peak (other than for the intersheet spacing) is observed
Добавил в систему: Десяткин Виктор Григорьевич

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Интеллектуальная Система Тематического Исследования НАукометрических данных

A planar-sheet nongraphitic zero-bandgap sp <sup>2</sup> carbon phase made by the low-temperature reaction of γ-graphyneстатья Исследовательская статья

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