In Situ Fabrication of Freestanding Single-Atom-Thick 2D Metal/Metallene and 2D Metal/ Metallene Oxide Membranes: Recent Developments.
2D metals/metallenes
freestanding single-atom-thick membrane
in situ TEM
single-element 2D materials
Journal
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
ISSN: 2198-3844
Titre abrégé: Adv Sci (Weinh)
Pays: Germany
ID NLM: 101664569
Informations de publication
Date de publication:
Oct 2021
Oct 2021
Historique:
revised:
23
06
2021
received:
16
02
2021
pubmed:
31
8
2021
medline:
31
8
2021
entrez:
30
8
2021
Statut:
ppublish
Résumé
In recent years, two-dimensional (2D) materials have attracted a lot of research interest as they exhibit several fascinating properties. However, outside of 2D materials derived from van der Waals layered bulk materials only a few other such materials are realized, and it remains difficult to confirm their 2D freestanding structure. Despite that, many metals are predicted to exist as 2D systems. In this review, the authors summarize the recent progress made in the synthesis and characterization of these 2D metals, so called metallenes, and their oxide forms, metallene oxides as free standing 2D structures formed in situ through the use of transmission electron microscopy (TEM) and scanning TEM (STEM) to synthesize these materials. Two primary approaches for forming freestanding monoatomic metallic membranes are identified. In the first, graphene pores as a means to suspend the metallene or metallene oxide and in the second, electron-beam sputtering for the selective etching of metal alloys or thick complex initial materials is employed to obtain freestanding single-atom-thick 2D metal. The data show a growing number of 2D metals/metallenes and 2D metal/ metallene oxides having been confirmed and point to a bright future for further discoveries of these 2D materials.
Identifiants
pubmed: 34459155
doi: 10.1002/advs.202100619
pmc: PMC8529443
doi:
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2100619Subventions
Organisme : National Science Foundation of China
ID : 52071225
Organisme : National Science Foundation of China
ID : 51676154
Organisme : National Science Center, and the Czech Republic under the ERDF program
Organisme : Institute of Environmental Technology-Excellent Research
ID : CZ.02.1.01/0.0/0.0/16_019/0000853
Organisme : Sino-German Research Institute
ID : GZ 1400
Organisme : Alexander von Humboldt-Foundation
Informations de copyright
© 2021 The Authors. Advanced Science published by Wiley-VCH GmbH.
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