Xu Xuyang, Zhang Mengyang, Wu Jincheng, Shen Ziyan, Liu Yang, Wang Longlu
School of Internet of Things, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, China.
Institute of Flexible Electronics (Future Technology), College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, China.
Nanomaterials (Basel). 2025 Aug 13;15(16):1237. doi: 10.3390/nano15161237.
Beyond the extensively studied two-dimensional transition metal dichalcogenides, a wide range of non-stoichiometric transition metal sulfides, such as molybdenum sulfides and tungsten sulfides (MoS, WS, MoS, MoS, NiMoS), have attracted significant attention for their promising applications in sensing, catalysis, and energy storage. It is necessary to review the current advanced progress of non-stoichiometric transition metal sulfides for various applications. Here, we systematically summarize the synthesis strategies of the non-stoichiometric transition metal sulfides, encompassing methods such as the molten salt synthesis method, high-metal-content growth strategy, and others. Particular emphasis is placed on how variations in the metal-to-sulfur ratio give rise to distinct crystal structures and electronic properties, and how these features influence their conductivity, stability, and performance. This review will deepen the understanding of the state of the art of non-stoichiometric transition metal sulfides, including the synthesis, characterization, modification, and various applications.
除了经过广泛研究的二维过渡金属二硫属化物之外，一系列非化学计量比的过渡金属硫化物，如硫化钼和硫化钨（MoS、WS、MoS、MoS、NiMoS），因其在传感、催化和能量存储方面的潜在应用而备受关注。有必要回顾非化学计量比过渡金属硫化物在各种应用中的当前先进进展。在此，我们系统地总结了非化学计量比过渡金属硫化物的合成策略，包括熔盐合成法、高金属含量生长策略等方法。特别强调了金属与硫比例的变化如何导致不同的晶体结构和电子性质，以及这些特性如何影响其导电性、稳定性和性能。本综述将加深对非化学计量比过渡金属硫化物的技术现状的理解，包括合成、表征、改性及各种应用。
