Ultrafast Growth of Thin Hexagonal and Pyramidal Molybdenum Nitride Crystals and Films

Wang, Lifeng; Liú, Dan; Wu, Bin; Wang, Jiemin; Zhang, Liangzhu; Chen, Cheng; Su, Yuyu; Yin, Huaying; Zhang, Jianing; Gogotsi, Yury; Liu, Yunqi; Lei, Weiwei

doi:10.1021/acsmaterialslett.9b00147

Cited by 18 publications

(17 citation statements)

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“…2D transitional metal nitrides (TMNs) are also served as important members of MXenes family for energy storage and conversion and catalysis applications. [ 87–89 ] Wang et al [ 90 ] reported a one‐step direct method to prepare ultrathin and uniform 2D MoN crystals under NH 3 and H 2 /N 2 mixed gas by controlling diffusion of the Mo atoms through the liquid Cu foil. The morphology and thickness of MoN crystals could be controlled in growth by changing the H 2 /N 2 gas flow ratio.…”

Section: Controlled Growth Of Mxenes Crystalsmentioning

confidence: 99%

“…2D transitional metal nitrides (TMNs) are also served as important members of MXenes family for energy storage and conversion and catalysis applications. [87][88][89] Wang et al [90] reported a one-step direct method to prepare ultrathin and uniform 2D MoN crystals under NH 3 and H 2 /N 2 mixed gas by controlling -d), 100 nm in (e), and 2 nm in (f). Reproduced with permission.…”

Section: Monmentioning

confidence: 99%

“…The initial V 2 C layer is adjacent to the vanadium plate with an average thickness of 4.7 µm, and the V 8 C 7 layer on the substrate is adjacent to the V 2 C layer Reproduced with permission. [90] Copyright 2019, American Chemical Society. g) Illustration of the CVD synthesis of ultrathin WN.…”

Section: Cmentioning

confidence: 99%

mentioning

confidence: 99%

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Recent Advances in Growth of Transition Metal Carbides and Nitrides (MXenes) Crystals

Fan

Zhang

et al. 2022

Adv Funct Materials

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As a novel family of 2D materials, MXenes have drawn intensive interests owing to its fascinating property profile. The ability to grow high‐quality MXenes in a controllable way would in turn further promote the development of fabrication techniques and expand wide advanced applications. Then 2D MXenes crystals are highly desirable and many approaches have been explored to realize the mass production. Chemical vapor deposition (CVD) provides compelling benefits over other alternatives in controllability, uniformity and scalability. In this review, the recent advances in growth of MXenes crystals by CVD method will comprehensively present. Several typical kinds of MXenes crystals are demonstrated to be fabricated with a precise control in terms of size, morphology and thickness. Further, a series of MXenes heterostructures are constructed including vertical and lateral spatial orientations. Then, the properties and applications of MXenes crystals are exhibited, of which superconductivity and electrochemical catalysts will be mainly emphasized. Finally, the authors put forward views on the future development in the synthesis of MXenes. With continuous efforts devoted, a bright future of MXenes crystals prepared by CVD is expected.

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Section: Controlled Growth Of Mxenes Crystalsmentioning

confidence: 99%

Section: Monmentioning

confidence: 99%

Section: Cmentioning

confidence: 99%

mentioning

confidence: 99%

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Recent Advances in Growth of Transition Metal Carbides and Nitrides (MXenes) Crystals

Fan

Zhang

et al. 2022

Adv Funct Materials

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“…Because of their importance, researchers have synthesized a variety of transition metal nitride nanostructures, such as mesoporous VN 16 , Ti 2 N nanosheets 17 , CoN nanowires 18 , NiMoN x nanowires 19 , and Ni 3 N nanosheets 20 . Among these transition metal nitrides, δ−MoN has attracted extensive attention due to their catalytic properties similar to platinum-group metals, energy storage, and superconductivity properties 21 – 24 . However, δ−MoN is inert in thermodynamics under an ambient pressure, so it is a great challenge to prepare δ−MoN with controllable structures 25 .…”

Section: Introductionmentioning

confidence: 99%

Low temperature synthesis of plasmonic molybdenum nitride nanosheets for surface enhanced Raman scattering

Guan

et al. 2020

Nat Commun

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Molybdenum nitride (δ–MoN) is an important functional material due to its impressive catalytic, energy storage, and superconducting properties. However, the synthesis of δ–MoN usually requires extremely harsh conditions; thus, the insight into δ−MoN is far behind that of oxides and sulfides of molybdenum. Herein, we report that ultrathin δ−MoN nanosheets are prepared at 270 °C and 12 atm. WN, VN, and TiN nanosheets are also synthesized by this method. The δ−MoN nanosheets show strong surface plasmon resonance, high conductivity, excellent thermal and chemical stability as well as a high photothermal conversion efficiency of 61.1%. As a promising surface enhanced Raman scattering substrate, the δ−MoN nanosheets exhibit a 8.16 × 10 6 enhanced factor and a 10 −10 level detection limit for polychlorophenol.

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2D Higher‐Metal Nitride Nanosheets for Solar Steam Generation

Wang

Shang

Yang

et al. 2022

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excellent electromagnetic wave absorption capacity and a localized surface plasmon effect, resulting in broadband light (UVvis-Infrared) absorption and excellent photothermal conversion efficiency. [8][9][10][11][12] Specifically, plasmonic TMN materials have displayed high melting points, excellent thermal and chemical stabilities, and are less expensive than noble metals such as Au. [13] Recently, group 4 TMNs (65% of HfN, 58% of ZrN, and 49% of TiN) exhibited higher photothermal transduction efficiencies than that of commercially Au (43%) samples because of their strong localized surface plasmon resonance effects. [14,15] However, most of these TMN compounds are usually formed from non-or sub-stoichiometric compositions and contain low nitrogen content. [16] Specifically, when the metallic atoms are in higher oxidation states, their corresponding metal nitride compounds are expected to form higher-metal (HM) nitrogen-rich (Nitrogen:Metal ratio >1) nitrides. These characteristics can result in some nitrides, such as HM-Mo 5 N 6 , posessing metallic properties resulting in improved electrocatalytic performance compared to nitrogen-poor nitrides. This can be attributed to the more complicated electron orbital hybridization state in Mo 5 N 6 compared to MoN. [17] For instance, the d band center positions of HM-Mo 5 N 6 and MoN are −1.96 and −2.28 eV. Therefore, the high valence state of Mo atoms in HM-Mo 5 N 6 and strong plasmon effect result in better catalytic activity and demonstrate great potential for solar-driven water generation. Alternatively, other HM nitrides, such as Ta 3 N 5 , demonstrate semiconductivity, which is advantageous for applications such as photoelectrochemical water splitting. [18] Furthermore, due to their higher oxidation states, HM-nitrides exhibit excellent corrosion resistance and high conductivity resulting in electrochemical catalytic behavior under harsh environments such as extremes of pH. [17,19] To date, chemical vapor deposition (CVD) has been explored to synthesize graphene, transition metal dichalcogenides (TMDs) hexagonal boron nitride (h-BN), and has also been used to obtain Mo 2 C, MoN, and Mo 5 N 6 nanosheets through the selection of specific precursors. [20][21][22][23][24][25] Furthermore, other researchers have also obtained metal nitrides via either the salt-template-assisted or atomic substitution methods under an ammonia atmosphere. [26][27][28][29][30] Although there has been Higher-metal (HM) nitrides are a fascinating family of materials being increasingly researched due to their unique physical and chemical properties. However, few focus on investigating their application in a solar steam generation because the controllable and large-scale synthesis of these materials remains a significant challenge. Herein, it is reported that higher-metal molybdenum nitride nanosheets (HM-Mo 5 N 6 ) can be produced at the gramscale using amine-functionalized MoS 2 as precursor. The first-principles calculation confirms amine-functionalized MoS 2 nanosheet effectively lengthens...

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Ultrafast Growth of Thin Hexagonal and Pyramidal Molybdenum Nitride Crystals and Films

Cited by 18 publications

References 38 publications

Recent Advances in Growth of Transition Metal Carbides and Nitrides (MXenes) Crystals

Recent Advances in Growth of Transition Metal Carbides and Nitrides (MXenes) Crystals

Low temperature synthesis of plasmonic molybdenum nitride nanosheets for surface enhanced Raman scattering

2D Higher‐Metal Nitride Nanosheets for Solar Steam Generation

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