A general strategy for the functionalization of two-dimensional metal chalcogenides

Shen, Jianfeng; Wang, He; Zhuang, Peiyuan; Zeng, Haotian; Ge, Yuancai; Steven, Craig; Dong, Pei; Gao, Shang; Ye, Mingxin

doi:10.1039/c8nr03313g

Cited by 9 publications

(8 citation statements)

References 44 publications

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“…Therefore, the Mo atoms at the S vacancies were exposed, which could function as the coordination centers to bond with ligands, as shown in Figure a. With this strategy, various kinds of building blocks that involved sulfur‐, oxygen‐, nitrogen‐containing functional groups were employed as ligands to coordinate with MoS 2 through S vacancies, resulting in multifunctional hybrid nanostructures …”

Section: Coordination‐driven Assembly Based On Tmdsmentioning

confidence: 99%

“…Similar to the S atoms, the O and N atoms also contained lone pair electrons. Therefore, molecules possessing O‐ and N‐containing functional groups could also coordinate with MoS 2 at the S vacancies, constructing various hybrid nanostructures …”

Section: Coordination‐driven Assembly Based On Tmdsmentioning

confidence: 99%

“…The coordination at S vacancies could be further applied to other kinds of TMDs, including WS 2 , TaS 2 , MoSe 2 , Sb 2 Te 3 , In 2 Se 3 , etc . This strategy might pave the way to realize various multifunctional TMDs‐based hybrid nanostructures.…”

Section: Coordination‐driven Assembly Based On Tmdsmentioning

confidence: 99%

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Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Liu

Zhong

Xie

2019

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nanobelts), 2D materials exhibit exceptional physical properties including large theoretical surface area, tunable electronic properties, high optical transparency, and excellent mechanical properties. [2] However, the strong re-stacking tendency of 2D materials caused by van der Waals interaction may result in serious loss of surface area, which inevitably weakens their unique properties. Besides, 2D materials always show intrinsic deficiencies for specific applications, despite the merits mentioned above. As a typical example, TMDs possess high theoretical specific capacities for lithium-ion storage but exhibit unsatisfied cyclability and rate capability in practice, because of their aggregation, low conductivity as well as huge volume expansion during lithium-ion insertion/extraction. [3] One effective way to solve these problems is to construct hybrid nanostructures based on 2D materials. [4][5][6][7][8] Hybrid nanostructures, as a class of composite materials, are composed of two or more nanostructured building blocks. [9,10] Hybrid nanostructures not only can energetically combine the intriguing merits and overwhelm the deficiencies of each building block, but also may generate new functions and properties. [3][4][5][6][7][8][11][12][13] These advantages make hybrid nanostructures based on 2D materials highly promising for practical applications with high performance. [14][15][16][17][18] Regarding the multicomponent composition of hybrid nanostructures, the interfacial interaction between the building blocks lays the foundation for structural and morphological stability, thereby influencing the functions and properties of the resulting hybrid nanostructures. [19][20][21][22] In this sense, the rational design and construction of reliable interfacial interaction for hybrid nanostructures are not only important for achieving improved performance, but also critical for understanding the fundamentals of structureproperty relationship.Generally, there are five types of interfacial interactions, i.e., covalent bond, coordination bond, hydrogen bond, π-π interaction, and electrostatic interaction. [19][20][21][22] Covalent bond and coordination bond are much stronger than the other three in terms of bond energy, so the former two are more favorable for constructing hybrid nanostructures with reliable interfacial interaction. [19] However, most 2D materials are chemically inert, which means the covalent modification is not suitable for them. Alternatively, there are coordination atoms in most of 2D materials and their derivatives, and hence coordination 2D materials have received tremendous scientific and engineering interest due to their remarkable properties and broad-ranging applications such as energy storage and conversion, catalysis, biomedicine, electronics, and so forth. To further enhance their performance and endow them with new functions, 2D materials are proposed to hybridize with other nanostructured building blocks, resulting in hybrid nanostructures with various morphologies and structures. The prop...

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Section: Coordination‐driven Assembly Based On Tmdsmentioning

confidence: 99%

Section: Coordination‐driven Assembly Based On Tmdsmentioning

confidence: 99%

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Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Liu

Zhong

Xie

2019

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“…Among them, functionalization can create a chemical environment for adjusting properties, 27 which supports fabrication 28 or material growth. 29 Even though the functionalized nature remains unclear, this process has predicted the existence of remarkable effects on a surface reaction for plenty of fields. Functionalization in graphene and related graphene systems indicate high performance in the efficient storage capacity, 3 , 4 , 24 , 30 the hydrogen evolution reaction (HER), 20 , 26 , 31 − 35 growth mechanism, 12 and photoelectrochemical generation.…”

Section: Introductionmentioning

confidence: 99%

Fundamental Properties of Hydrogen-Functionalized GaSe Monolayer

2022

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Functionalization reveals potential opportunities for modifying essential properties and designing materials due to the strong interaction between functionalized atoms and the surface. Among them, hydrogenation possesses such a way to control electronic and optical characteristics. In this paper, the stability and transformed electronic, optical properties of H-functionalized GaSe in two cases (single and double sites) were reported that exhibit the effects of hydrogen functionalization via first-principles calculations. Formation energies suggest that H-functionalized GaSe systems are stable for construction. H-GaSe and 2H-GaSe display distinct properties based on the functionalized way (single- or double-site functionalization). Accordingly, H-GaSe is metallic, while 2H-GaSe belongs to a semiconductor. The magnetic configuration with ferro- and anti-ferromagnetic could be found in H- and 2H-functionalized cases through spin distribution, respectively. Especially, the chemical hybridized bonds of Se–H, Ga–Se, and Ga–Ga corresponding to s-sp 3 and sp 3 -sp 3 bondings, respectively, are clearly verified in the orbital-projected density of states and charge density. The optical properties of 2H-GaSe could provide the main characteristics of a semiconductor, which is the limited range of transparency by electronic absorption at short and long wavelengths. Moreover, increasing the number of GaSe segments ( L ) could change the band gap leading to application in the band gap engineering of the 2H-GaSe systems. Thus, hydrogen functionalization could provide the possible manner for adjusting and controlling features of GaSe, promising for the development of electronic devices and applications.

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“…The non‐transition metal telluride atomic crystals with unique physical properties need more investigation. [ 40–43 ] Considering this, we give a comprehensive review of 2D MTACs in this article as illustrated in Figure . First, we introduce the recent advances in 2D MTACs, focusing on the preparation, physical properties and applications.…”

Section: Introductionmentioning

confidence: 99%

Two‐Dimensional Metal Telluride Atomic Crystals: Preparation, Physical Properties, and Applications

Tao

et al. 2021

Adv Funct Materials

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Atom‐thick 2D metal telluride atomic crystals (2D MTACs) display many fascinating physical properties for potential applications in multiple fields. In this review, recent advances in the preparation, physical properties and applications of 2D MTACs are presented. First, three kinds of the most available preparation methods for 2D single crystal MTACs have been summarized, including single crystal‐based mechanical exfoliation, molecular beam epitaxy, and chemical vapor deposition. Second, the recent progress on abundant physical properties of 2D MTACs is briefly introduced, including surface electronic properties, optoelectronic properties, electronic transport, and thermoelectric properties, ferroelectric properties, superconducting properties, and ferromagnetic properties. Third, the potential electronics, spintronics, optoelectronics and energy applications of 2D MTACs are presented. Finally, some significant challenges and opportunities in 2D MTACs are briefly addressed.

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A general strategy for the functionalization of two-dimensional metal chalcogenides

Cited by 9 publications

References 44 publications

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Coordination‐Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials

Fundamental Properties of Hydrogen-Functionalized GaSe Monolayer

Two‐Dimensional Metal Telluride Atomic Crystals: Preparation, Physical Properties, and Applications

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