Etching-Free Ultrafast Fabrication of Self-Rolled Metallic Nanosheets with Controllable Twisting

Wang, Tianyu; Zhang, Zhibo; Yu, Qing; Yang, Yong

doi:10.1021/acs.nanolett.1c01789

Cited by 6 publications

(7 citation statements)

References 35 publications

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“…It is evident that the 2D nanomembrane synthesized by the PSBEE method exhibits superior lateral size to thickness ratios and lateral scales when compared to other aforementioned synthesis methods. 13,19 Aside from mechanical properties, the PSBEE-prepared 2D nanomembranes exhibit a remarkable capability to enhance the catalytic performance of materials. Its exceedingly high surface to volume ratio, surpassing that of catalytic materials with similar volumes, enables the exposure of a great number of active sites.…”

Section: Polymer Surface Buckling Enabled Exfoliation (Psbee)mentioning

confidence: 99%

“…18 In addition to sheetlike nanomaterials, the experimental setup of PSBEE can be modified to produce 1D nanomaterials by rolling up large-sized 2D nanomaterials. 19 Furthermore, we can also synthesize 0D nanomaterials (e.g., nanoparticles) through thermal annealing of 2D and 1D nanomaterials in ambient conditions. 20 In this Account, we aim to delve into the fundamental aspects of PSBEE, provide an overview of the structural and functional properties exhibited by 2D nanomaterials fabricated by this method, and discuss the potential applications of these materials.…”

Section: Introductionmentioning

confidence: 99%

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Polymer-Based Fabrication of 2D Metallic and Ceramic Nanomaterials

Yao,

Zhu,

Teng

et al. 2024

Acc. Mater. Res.

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Metrics & MoreArticle RecommendationsCONSPECTUS: Since the ground-breaking achievement of successfully exfoliating singlelayer graphene in 2004, there has been significant and rapid development in the field of twodimensional (2D) nanomaterials. In the field of materials science, 2D nanomaterials are defined as freestanding nanomembranes with a thickness below 100 nm and other lateral dimensions that can extend to the millimeter scale or beyond. These materials exhibit exceptional mechanical, physical, and chemical properties due to their extremely high surface area to volume ratios, surpassing those of their bulk counterparts. As a result, numerous topdown and bottom-up methods have emerged over the past decades to synthesize novel 2D nanomaterials, catering to diverse applications. In this Account, we review the existing topdown methods, such as mechanical compression and mechanical exfoliation, as well as bottomup methods including hydrothermal induction/solvothermal synthesis, chemical vapor deposition synthesis, etc. We critically discuss the advantages and limitations of each method. Subsequently, we highlight our recently developed method known as polymer surface buckling enabled exfoliation (PSBEE). Unlike previous synthesis techniques, PSBEE is based on the chemical reaction between metals and polymers to fabricate 2D nanomaterials with unique nanostructures. This approach offers a simple, efficient, cost-effective, and environmentally friendly means of achieving large-scale production of 2D nanomaterials, featuring an extremely high lateral size to thickness ratio ranging from 10 6 to 10 7 . Notably, PSBEE eliminates the need for chemical etching and enables precise control over the morphology of the synthesized nanomaterials, allowing for transitions from 2D nanomembranes to 1D nanotubes. Through thermal annealing, some of the PSBEE-fabricated 2D nanomaterials, such as 2D gold nanomaterials, can undergo pyrolysis and transform into 0D gold nanoparticles. Furthermore, the versatility of PSBEE extends beyond 2D metallic nanomaterials to the synthesis of 2D ceramic nanomaterials, showcasing its broad applicability across diverse material systems. The unique nanostructures of PSBEE-fabricated 2D nanomaterials, usually featuring a network of nanosized ceramics and metals, contribute to their exceptional mechanical and functional properties. These include an outstanding elastic strain limit, superb strength, remarkable plasticity, superior fracture toughness, high electrocatalytic properties, and unique triboelectric performance. Consequently, these properties lead to novel applications of the PSBEE-fabricated nanomaterials, such as triboelectric sensing and 2D electrocatalysis. At the same time, the PSBEE method also offers notable advantages in terms of scalable production, high throughput efficiency, and low energy consumption, making it highly suitable for future industrial applications. In general, polymer-based fabrication of 2D nanomaterials opens up possibilities for producing diverse and technologica...

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Section: Polymer Surface Buckling Enabled Exfoliation (Psbee)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polymer-Based Fabrication of 2D Metallic and Ceramic Nanomaterials

Yao,

Zhu,

Teng

et al. 2024

Acc. Mater. Res.

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“…Here, it is important to note that PVD may introduce significant residual stress in the nanosheets, [9] thus leading to rolling and folding of otherwise flat nanosheets. [20,21]…”

Section: Fabrication Of Inorganic Nanosheetsmentioning

confidence: 99%

“…In addition, the presence of in-plane residual stress often leads to the rolling or twisting of ultrathin nanomaterials. [19,20] Therefore, it has never been straightforward to manipulate ultrathin nanomaterials in a controlled manner.Over the past years, tremendous efforts have been dedicated to structuring and manipulating ultrathin nanomaterials for real applications. According to the literature, [16,[21][22][23][24] the Ultrathin inorganic nanosheets (e.g., 2D nanomaterials, thin films, etc.)…”

mentioning

confidence: 99%

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Elasto‐Capillary Manipulation of Freestanding Inorganic Nanosheets: An Implication for Nano‐Manufacturing of Low‐Dimensional Structures

Wang

Zhou

et al. 2022

Adv Materials Inter

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atomic-scale (e.g., graphene, [12] MoS 2 [13] ), ultrathin nanomaterials exhibit outstanding mechanical, optical, and electrical properties. [6,10,14,15] Therefore, they have been attracting tremendous research interest in both academia and industries in recent years. Nonetheless, controlled manipulation of these ultrathin nanomaterials poses a general challenge to their applications. [16] To fabricate microor nano-devices, nanomaterials need to be purposely structured [16] and transferred [17,18] while any resultant deformation, such as the formation of curvatures and folds, [16] could change their electronic and photonic properties. On the other hand, because of their extremely low flexural rigidity, ultrathin nanomaterials can be easily deformed and/or even damaged by external stimuli (e.g., by solid-solid contacts). In addition, the presence of in-plane residual stress often leads to the rolling or twisting of ultrathin nanomaterials. [19,20] Therefore, it has never been straightforward to manipulate ultrathin nanomaterials in a controlled manner.Over the past years, tremendous efforts have been dedicated to structuring and manipulating ultrathin nanomaterials for real applications. According to the literature, [16,[21][22][23][24] the Ultrathin inorganic nanosheets (e.g., 2D nanomaterials, thin films, etc.) have attracted tremendous research interest because of their unique properties and promising applications. However, because of their ultrathin thickness (<100 nm) and low flexural rigidity, it is difficult to manufacture low-dimensional structures using these nanosheets. In this work, the observation of an intriguing elasto-capillary unfolding phenomenon is first reported which occurs on a variety of freestanding inorganic nanosheets floating on a liquid surface. Through theoretical modeling and experiments, it is demonstrated that one can easily unfold, re-roll, and transport different kinds of nanosheets by tuning the interfacial properties of the liquid. As a result, one can assemble nanosheets on the liquid surface into small structures (e.g., heterogeneous scrolls, optical resonators) and/or transfer them out of the liquid surface onto other surfaces for the manufacturing of flexible devices. The outcome of this research paves the way for nano-manufacturing of low-dimensional structures with ultrathin inorganic nanosheets.

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Organic‐Inorganic Conformal Extending High‐Purity Metal Nanosheets for Robust Electrochemical Lithium‐Ion Storage

Xie

Zhang

Liu

et al. 2023

Adv Funct Materials

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Abstract2D metal nanosheets present potential applications in catalysis, surface‐enhanced Raman scattering, nonlinear optics, energy conversion, and storage due to their extraordinary surface chemistry and quantum‐size effects. However, the massive preparation of 2D metal nanosheets with high purity remains challenging. Herein, a scalable and highly efficient approach that relies on organic‐inorganic conformal extending procedures to prepare high‐purity 2D metal nanosheets (e.g., Sn and Al) with thicknesses of one to a few nanometers is developed. This approach not only results in metal nanosheets with a very uniform and controllable thickness but also effectively avoids the introduction of impurities of other metals and oxides. As a result, this strategy enables scalable preparation of 2D ultrathin metal nanosheets with thicknesses of 1–3 nm. As a proof‐of‐the‐concept application, a compact hybrid anode is constructed from a 2D stacked combination of Sn nanosheets and 2D graphene oxide (SnNS‐GO), which show a high reversible capacity of ≈940 mAh g−1 and excellent cycling stability of 1200 cycles without capacity decay. It is believed that this scalable and facile preparation methodology will facilitate the fundamental research and applications of 2D metal nanosheets in important fields, such as electrochemical energy storage, catalysis, nonlinear optics, sensors, etc.

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Etching-Free Ultrafast Fabrication of Self-Rolled Metallic Nanosheets with Controllable Twisting

Cited by 6 publications

References 35 publications

Polymer-Based Fabrication of 2D Metallic and Ceramic Nanomaterials

Polymer-Based Fabrication of 2D Metallic and Ceramic Nanomaterials

Elasto‐Capillary Manipulation of Freestanding Inorganic Nanosheets: An Implication for Nano‐Manufacturing of Low‐Dimensional Structures

Organic‐Inorganic Conformal Extending High‐Purity Metal Nanosheets for Robust Electrochemical Lithium‐Ion Storage

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