Emerging field of few-layered intercalated 2D materials

Cao, Qing; Grote, Fabian; Huβmann, Marleen; Eigler, Siegfried

doi:10.1039/d0na00987c

Cited by 21 publications

(10 citation statements)

References 170 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…14 Due to the potential of intercalation compounds in the field of energy sciences, a wide variety of intercalants in layered materials have been explored. [15][16][17] In particular, intercalants that are redox active have been of interest to expand the functionality of layered materials through electronic coupling between the intercalant and the host material. 18 A recent study by Kwak et al has shown that the intercalation of cobaltocene into WS2 results in charge transfer from the intercalant to the host lattice, resulting in a positive impact on hydrogen evolution reaction (HER) activity.…”

Section: Introductionmentioning

confidence: 99%

Charge Transfer in Metallocene Intercalated Transition Metal Dichalcogenides

et al. 2022

View full text Add to dashboard Cite

Intercalating redox active molecules into layered materials expands their functionality for emerging energy technologies. However, the mechanism of charge transfer to and from these small molecules within the confined environment of the layered host material and their role in charge storage are largely unexplored. Herein we examine charge transfer processes in metallocene intercalated transition metal dichalcogenides, including MoS2 and WS2. Combining experimental and computational analyses, we explore the orientation of the metallocene as a function of substitution pattern and study the influence of the metallocene redox potential on the electronic structure of MoS2 and WS2. We further examine the electrochemical response of these intercalated compounds via cyclic voltammetry. Our results show that the intercalated metallocene remains redox active and its redox potential is dramatically affected by the speciation and concentration of cations in the electrolyte. Our work provides a general strategy for studying the electronic and electrochemical responses of redox active intercalants in layered materials and highlights emergent phenomena regulating charge transfer that may be useful in energy storage and catalysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Charge Transfer in Metallocene Intercalated Transition Metal Dichalcogenides

et al. 2022

View full text Add to dashboard Cite

show abstract

“…These issues rear their head in the fabrication of 2D intercalated nanofilms, as the materials find an increasing number of applications such as charge transporting material, energy storage, electronic device, and battery material. [11][12][13] However, only a limited level of control has been realized by either of the two conventional approaches: Top-down inserting intercalant to a layered material or bottom-up assembling layers and intercalants together (Figure 1a). The top-down approach breaking apart the preformed layered structure of 3D materials provides a quick and scalable access to the locally precise intercalated structure, but lacks the control of long-range structural uniformity as to the thickness and the area of the 2D film.…”

Section: Doi: 101002/adma202106465mentioning

confidence: 99%

De Novo Synthesis of Free‐Standing Flexible 2D Intercalated Nanofilm Uniform over Tens of cm²

et al. 2021

View full text Add to dashboard Cite

Of a variety of intercalated materials, 2D intercalated systems have attracted much attention both as materials per se, and as a platform to study atoms and molecules confined among nanometric layers. High‐precision fabrication of such structures has, however, been a difficult task using the conventional top‐down and bottom‐up approaches. The de novo synthesis of a 3‐nm‐thick nanofilm intercalating a hydrogen‐bonded network between two layers of fullerene molecules is reported here. The two‐layered film can be further laminated into a multiply film either in situ or by sequential lamination. The 3 nm film forms uniformly over an area of several tens of cm2 at an air/water interface and can be transferred to either flat or perforated substrates. A free‐standing film in air prepared by transfer to a gold comb electrode shows proton conductivity up to 1.4 × 10−4 S cm−1. Electron‐dose‐dependent reversible bending of a free‐standing 6‐nm‐thick nanofilm hung in a vacuum is observed under electron beam irradiation.

show abstract

“…[1,2] The unconventional properties of 2D nanomaterials were considered after receiving the 2010 Nobel Prize. [3,4] These nanomaterials offered better properties, such as more remarkable performance, flexibility, and higher compatibility than a single element of graphene. [5] Second, their ultrathin thickness and 2D morphological structure have unique physical, chemical, and electronic properties compared to their congeries types.…”

Section: Introductionmentioning

confidence: 99%

Biomedical Applications of MXene‐Integrated Composites: Regenerative Medicine, Infection Therapy, Cancer Treatment, and Biosensing

Maleki

Ghomi

Nikfarjam

et al. 2022

Adv Funct Materials

111

View full text Add to dashboard Cite

MXenes (viz., transition metal carbides, carbonitrides, and nitrides) have emerged as a new subclass of 2D materials. Due to their outstanding physicochemical and biological properties, MXenes have gained much attention in the biomedical field in recent years, including drug delivery systems, regenerative medicine, and biosensing. Additionally, the incorporation of MXenes into hydrogels has garnered significant interest in biomedical engineering as an electroactive and mechanical nanoreinforcer capable of converting nonconductive scaffolds into excellent conductors of electricity with an impressive effect on mechanical properties for the engineering of electroactive organs and tissues such as cardiac, skeletal muscle, and nerve. However, many questions and problems remain unresolved that need to be answered to usher these 2D materials toward their true destiny. Thus, this review paper aims to provide an overview of the design and applications of MXene-integrated composites for biomedical applications, including cardiac tissue engineering, wound healing, infection therapy, cancer therapy, and biosensors. Moreover, the current challenges and limitations of utilizing MXenes in vivo are highlighted and discussed, followed by its prospects as a guideline toward possible various futuristic biomedical applications. This review article will inspire researchers, who search for properties, opportunities, and challenges of using this 2D nanomaterial in biomedical applications.

show abstract

Emerging field of few-layered intercalated 2D materials

Abstract: The chemistry and physics of intercalated layered 2D materials (2DMs) are the focus of this review article.

Cited by 21 publications

References 170 publications

Charge Transfer in Metallocene Intercalated Transition Metal Dichalcogenides

Charge Transfer in Metallocene Intercalated Transition Metal Dichalcogenides

De Novo Synthesis of Free‐Standing Flexible 2D Intercalated Nanofilm Uniform over Tens of cm²

Biomedical Applications of MXene‐Integrated Composites: Regenerative Medicine, Infection Therapy, Cancer Treatment, and Biosensing

Contact Info

Product

Resources

About

Emerging field of few-layered intercalated 2D materials

Abstract: The chemistry and physics of intercalated layered 2D materials (2DMs) are the focus of this review article.

Cited by 21 publications

References 170 publications

Charge Transfer in Metallocene Intercalated Transition Metal Dichalcogenides

Charge Transfer in Metallocene Intercalated Transition Metal Dichalcogenides

De Novo Synthesis of Free‐Standing Flexible 2D Intercalated Nanofilm Uniform over Tens of cm2

Biomedical Applications of MXene‐Integrated Composites: Regenerative Medicine, Infection Therapy, Cancer Treatment, and Biosensing

Contact Info

Product

Resources

About

De Novo Synthesis of Free‐Standing Flexible 2D Intercalated Nanofilm Uniform over Tens of cm²