“…Based on the above surfactant self-assembly method, 2D nanostructures of some typical transition MOXs such as TiO 2 , ZnO, Co 3 O 4, WO 3 , Fe 3 O 4, and MnO 2 have been successfully prepared ( Sun et al., 2014 ). Figure 4 Bottom-up synthesis: self-assembly synthesis of 2D MOXs (A) Schematic illustration for the self-assembly of 2D metal oxide nanosheets ( Lei et al., 2021 ) Copyright 2021, Elsevier. (B) Schematic illustration for the synthesis of 2D metal oxide nanosheets based on the thermo-regulated phase transition ( Zhang et al., 2019 ) Copyright 2019, Royal Society of Chemistry.…”
Section: Fabrication Methods Of 2d Metal Oxidesmentioning
confidence: 99%
“… (A) Schematic illustration for the self-assembly of 2D metal oxide nanosheets ( Lei et al., 2021 ) Copyright 2021, Elsevier. …”
Section: Fabrication Methods Of 2d Metal Oxidesmentioning
Summary
Atomically thin two-dimensional (2D) metal oxides exhibit unique optical, electrical, magnetic, and chemical properties, rendering them a bright application prospect in high-performance smart devices. Given the large variety of both layered and non-layered 2D metal oxides, the controllable synthesis is the critical prerequisite for enabling the exploration of their great potentials. In this review, recent progress in the synthesis of 2D metal oxides is summarized and categorized. Particularly, a brief overview of categories and crystal structures of 2D metal oxides is firstly introduced, followed by a critical discussion of various synthesis methods regarding the growth mechanisms, advantages, and limitations. Finally, the existing challenges are presented to provide possible future research directions regarding the synthesis of 2D metal oxides. This work can provide useful guidance on developing innovative approaches for producing both 2D layered and non-layered nanostructures and assist with the acceleration of the research of 2D metal oxides.
“…Based on the above surfactant self-assembly method, 2D nanostructures of some typical transition MOXs such as TiO 2 , ZnO, Co 3 O 4, WO 3 , Fe 3 O 4, and MnO 2 have been successfully prepared ( Sun et al., 2014 ). Figure 4 Bottom-up synthesis: self-assembly synthesis of 2D MOXs (A) Schematic illustration for the self-assembly of 2D metal oxide nanosheets ( Lei et al., 2021 ) Copyright 2021, Elsevier. (B) Schematic illustration for the synthesis of 2D metal oxide nanosheets based on the thermo-regulated phase transition ( Zhang et al., 2019 ) Copyright 2019, Royal Society of Chemistry.…”
Section: Fabrication Methods Of 2d Metal Oxidesmentioning
confidence: 99%
“… (A) Schematic illustration for the self-assembly of 2D metal oxide nanosheets ( Lei et al., 2021 ) Copyright 2021, Elsevier. …”
Section: Fabrication Methods Of 2d Metal Oxidesmentioning
Summary
Atomically thin two-dimensional (2D) metal oxides exhibit unique optical, electrical, magnetic, and chemical properties, rendering them a bright application prospect in high-performance smart devices. Given the large variety of both layered and non-layered 2D metal oxides, the controllable synthesis is the critical prerequisite for enabling the exploration of their great potentials. In this review, recent progress in the synthesis of 2D metal oxides is summarized and categorized. Particularly, a brief overview of categories and crystal structures of 2D metal oxides is firstly introduced, followed by a critical discussion of various synthesis methods regarding the growth mechanisms, advantages, and limitations. Finally, the existing challenges are presented to provide possible future research directions regarding the synthesis of 2D metal oxides. This work can provide useful guidance on developing innovative approaches for producing both 2D layered and non-layered nanostructures and assist with the acceleration of the research of 2D metal oxides.
“…TMOs have been widely studied in the field of electrochemical energy storage because of their wide variety of compositions, mixed valence states and excellent redox capabilities. [ 91‐94 ] Among them, the 2D TMOs, such as δ‐MnO 2 and α‐V 2 O 5 , are suitable…”
Section: Application Of Two‐dimensional Materials In Aqueous Recharge...mentioning
Comprehensive Summary
Rechargeable aqueous zinc‐ion batteries (ZIBs) featuring low cost, superior performance, and environmental benignity have attracted dramatic attention as a promising alternative energy storage system to lithium‐ion batteries. Nevertheless, the development of ZIBs is still hindered by the limited selection of cathode materials due to the large solvation sheath and charge density of Zn2+. Two‐dimensional (2D) materials have attracted extraordinary attention owing to the unique layered structure bonded by weak van der Waals’ forces, which makes them promising host materials for Zn2+ intercalation/de‐intercalation. In this review, the synthesis and properties of 2D materials for cathodes in ZIBs are discussed. Meanwhile, various reports on 2D materials as ZIBs cathodes are summarized. Three key strategies to elicit improved Zn2+ storage abilities: defect engineering, heterostructure engineering, and interlayer engineering, are highlighted. Finally, this review ends with perspectives relating to the challenges and opportunities of 2D materials‐based ZIBs.
“…40,41 Third, inevitable catalyst particle agglomeration and stacking caused by the van der Waals (vdW) interaction can hinder the exposure of reactive sites and lead to the decrease of reactive sites. 42,43 For overcoming these limitations, some modification strategies have been developed for improving the electrocatalytic activity of 2D-LDH materials through enhancing the active site density, improving the intrinsic electrochemical conductivity, and reducing the reaction barrier. The modification methods include defect engineering, 44,45 heteroatom doping, 46,47 structural design, 48,49 and so on.…”
Two-dimensional (2D) layered double hydroxides (LDH) with excellent hydrophilic ability and rapid hydroxyl insertion are regarded as one type of the most promising electrocatalysts for both oxygen evolution reaction (OER)...
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