Low-temperature growth of ultrathin and epitaxial Mo<sub>2</sub>C nanosheets <i>via</i> a vapor–liquid–solid process

Wang, Bin; Zhao, Chun-Chao; Wang, Chao; Li, Rongtan; Zhang, Guohui; Mu, Rentao; Fu, Qiang

doi:10.1039/d2nr02389j

Cited by 2 publications

(2 citation statements)

References 43 publications

(48 reference statements)

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“…The XRD results of MOMC@C materials (Figure 1b) indicate that the diffraction peaks at 34.4°, 37.8°, 39.4°, 52.1°, 61.5°, 69.6°, 74.6°and 75.5°correspond to (100), (002), (101), (102), (110), ( 103), ( 112) and (201) crystal planes of hexagonal Mo 2 C structure, [29,30] while the other peaks at 26.0°, 36.9°and 53.6°c orrespond to the (À 111), (111) and (À 222) crystal planes of MoO 2 (JCPDS No. 32-0671), respectively, [31,32] indicating that both Mo 2 C and MoO 2 phases exist in as-prepared materials.…”

Section: Resultsmentioning

confidence: 99%

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

Gao

Chen

Zhao

et al. 2023

Chemistry An Asian Journal

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Molybdenum carbide is one of non‐precious metal materials and it is a promising electrocatalyst for hydrogen production. Synthesis and improvement of molybdenum carbide's catalytic performance is of great significance. Herein, carbon‐based Mo2C with hybrid phase of MoO2 was fabricated by matching the composition of Mo and C derived from pomelo peel and optimizing raw carbon amount and prolysis temperature. The resulting MoO2/Mo2C@C is composed of loose microspheres with mesoporous microstructure and is self‐assembled from nanoparticles. The results show that MoO2/Mo2C@C2 material exhibits excellent HER performance and only a low overpotentials of 143 mV is needed to drive the current density of 10 mA cm−2 in alkaline solution, and Tafel slopes are only 63.4 mV dec−1, respectively. Notably, it has potential application at low overpotentials to drive large current density and this strategy also provides a universal route to prepare non‐noble metal catalyst with hybrid phase of oxide/carbide.

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Section: Resultsmentioning

confidence: 99%

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

Gao

Chen

Zhao

et al. 2023

Chemistry An Asian Journal

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“…Despite the SCVD technique being a universal option for growing large groups of 2D TMDs, the limited suitable precursors degrade the versatility of this strategy. Notably, along with 2D TMDs, a group of transition metal carbides (TMNxs) including MoNx, WNx, CrNx, VNx, and transition metal carbides (TMCs) like MoC 2 have been fabricated via SCVD technique, , which suggests the potential diversification of the 2D material family. The more detailed information regarding synthesized 2D TMDs by SCVD is illustrated in Table .…”

Section: Scvd Growth Of 2d Tmdsmentioning

confidence: 99%

Recent Advances in Spin-coating Precursor Mediated Chemical Vapor Deposition of Two-Dimensional Transition Metal Dichalcogenides

Shen,

Jin,

Zhang

et al. 2024

Precision Chemistry

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transition metal dichalcogenides (TMDs) have garnered widespread interest in the scientific community and industry for their exceptional physical and chemistry properties, and great potential for applications in diverse fields including (opto)electronics, electrocatalysis, and energy storage. Chemical vapor deposition (CVD) is one of the most compelling growth methods for the scalable growth of high-quality 2D TMDs. However, the conventional CVD process for synthesis of 2D TMDs still encounters significant challenges, primarily attributed to the high melting point of precursor powders, and achieving a uniform distribution of precursor atmosphere on the substrate to obtain controllable smaple domains is difficult. The spin-coating precursor mediated chemical vapor deposition (SCVD) strategy provides refinement over traditional methods by eliminating the use of solid precursors and ensuring a more clean and uniform distribution of the growth material on the substrate. Additionally, the SCVD process allows fine-tuning of material thickness and purity by manipulating solution composition, concentration, and the spin coating process. This Review presents a comprehensive summary of recent advances in controllable growth of 2D TMDs with a SCVD strategy. First, a series of various liquid precursors, additives, source supply methods, and substrate engineering strategies for preparing atomically thin TMDs by SCVD are introduced. Then, 2D TMDs heterostructures and novel doped TMDs fabricated through the SCVD method are discussed. Finally, the current challenges and perspectives to synthesize 2D TMDs using SCVD are discussed.

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Low-temperature growth of ultrathin and epitaxial Mo₂C nanosheets via a vapor–liquid–solid process

Abstract: Due to unique physical and chemical properties, transition metal carbides (TMCs) have many potential applications in the fields of energy conversion and catalysis. Chemical vapor deposition (CVD) is a promising...

Cited by 2 publications

References 43 publications

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

Recent Advances in Spin-coating Precursor Mediated Chemical Vapor Deposition of Two-Dimensional Transition Metal Dichalcogenides

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Low-temperature growth of ultrathin and epitaxial Mo2C nanosheets via a vapor–liquid–solid process

Abstract: Due to unique physical and chemical properties, transition metal carbides (TMCs) have many potential applications in the fields of energy conversion and catalysis. Chemical vapor deposition (CVD) is a promising...

Cited by 2 publications

References 43 publications

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

Phase Engineering of Molybdenum Carbide/Oxide for Highly‐Efficient Electrocatalytic Hydrogen Production

Recent Advances in Spin-coating Precursor Mediated Chemical Vapor Deposition of Two-Dimensional Transition Metal Dichalcogenides

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Low-temperature growth of ultrathin and epitaxial Mo₂C nanosheets via a vapor–liquid–solid process