Collected Item: “Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material”
Врста публикације
Рад у часопису
Верзија рада
објављена верзија
Језик рада
енглески
Аутор/и (Милан Марковић, Никола Николић)
Borislav Vasić, Radoš Gajić, Ivana Milošević, Žarko Medić, Marina Blagojev, Marko Opačić, Aleksandar Kremenović, Dejan Lazić
Наслов рада (Наслов - поднаслов)
Natural two-dimensional pyrophyllite: Nanoscale lubricant, electrical insulator and easily-machinable material
Наслов часописа
Applied Surface Science
Издавач (Београд : Просвета)
Elsevier BV
Година издавања
2022
Сажетак на енглеском језику
Pyrophyllite, with the chemical formula Al2Si4O10(OH)2, is a naturally occurring and abundant van der Waals mineral belonging to the group of phyllosilicates. It is very soft, layered crystal used for sculpting and an excellent electrical and thermal insulator aimed for the operation at high pressure and temperature. Here, for the first time, two-dimensional (2D) pyrophyllite obtained by both mechanical and liquid phase exfoliation is presented and investigated at the nanoscale. The layered structure provides low friction coefficient of around 0.1 as measured by friction force microscopy. The wear properties, studied by atomic force microscope (AFM) based scratching, are distinctly different from graphene. Since the wear is initiated at low normal forces, 2D pyrophyllite can be routinely carved by the AFM tip and it is suitable for scratching based nanolithography. According to our optical measurements, 2D pyrophillite is an insulator with a band gap of ∼5.2eV. Local current measurements by conductive AFM reveal that 2D pyrophyllite flakes behave as efficient electrical insulators with a breakdown voltage of around 6MV/cm. Therefore, the obtained results indicate possible applications of 2D pyrophyllite as a low-cost electric insulator and lubricant, as well as an easily-machinable material at the nanoscale.
Волумен/том или годиште часописа
608
Број часописа
608
Почетна страна
155114
Укупан број страна рада (уколико не постоји пагинација)
11
DOI број
10.1016/j.apsusc.2022.155114
ISSN број часописа
0169-4332
Кључне речи на српском (одвојене знаком ", ")
Surfaces, Coatings and Films,Condensed Matter Physics,Surfaces and Interfaces,General Physics and Astronomy,General Chemistry
Кључне речи на енглеском (одвојене знаком ", ")
Atomic force microscopy; Insulating properties; Nanofriction and wear; Natural two dimensional materials; Phyllosilicates; Pyrophyllite
Линк
https://api.elsevier.com/content/article/PII:S0169433222026423?httpAccept=text/xml
Шира категорија рада према правилнику МПНТ
M20
Ужа категорија рада према правилнику МПНТ
М21а
Степен доступности
Затворени приступ
Лиценца
Creative Commons – Attribution 4.0 International
Формат дигиталног објекта
.pdf