Metal nitrides nanosheets possess remarkable physical and chemical properties such as high electrical conductivities, catalytic properties, energy storage, and conversion efficiency. In this paper, molybdenum nitride (Mo₅N₆, MoN, and Mo₂N) nanosheets were synthesized by nitriding and exfoliating the bulk 2H‐MoS₂ via dropping N from ammonia at high temperature. Molybdenum nitride nanosheets with the thickness of dozens of nanometers were prepared successfully under different conditions. It was found that the reaction between MoS₂ and NH₃ began from about 696°C, and reduction products and reaction mechanisms were strongly dependent on the temperature. When there was MoS₂, the generated Mo₅N₆, MoN, and Mo₂N can exist stably at even 820, 1020, and 1120°C, respectively. However, they will decompose progressively after MoS₂ was consumed completely: at 820°C, Mo₅N₆ started to decompose to δ‐MoN; at 1020°C, the phase evolution process of MoN can be described as follows: δ‐MoN→ γ‐Mo₂N→ β‐Mo₂N→ Mo, while at 1120°C, the β‐Mo₂N will transform to Mo.

中文翻译：

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氨氮化2H-MoS2合成氮化钼纳米片

金属氮化物纳米片具有非凡的物理和化学性质，例如高电导率，催化性质，能量存储和转化效率。本文通过在高温下通过从氨中滴加N来氮化和剥离2H-MoS ₂块体来合成氮化钼（Mo ₅ N ₆，MoN和Mo ₂ N）纳米片。在不同条件下成功制备了厚度为数十纳米的氮化钼纳米片。发现MoS ₂和NH ₃之间的反应从约696℃开始，并且还原产物和反应机理强烈地依赖于温度。当有MoS _2时因此，所产生的Mo ₅ N ₆，MoN和Mo ₂ N可以分别稳定地在820、1020和1120°C下存在。但是，它们将在MoS ₂完全消耗后逐渐分解：在820°C下，Mo ₅ N ₆开始分解为δ-MoN；而在820°C时，Mo ₅ N ₆开始分解为δ-MoN。在1020℃下，可谓MON的相位演化过程如下：δ-MON→γ-沫₂ Ñ→β-沫₂ Ñ→沫，而在1120℃时，β-沫₂ N值将变换，以莫