Wu Xin, Zhang Huabin, Zhang Jian, Lou Xiong Wen David
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
KAUST Catalysis Center (KCC), Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
Adv Mater. 2021 Sep;33(38):e2008376. doi: 10.1002/adma.202008376. Epub 2021 Aug 18.
Transition metal dichalcogenides (TMDCs) hold great promise for electrochemical energy conversion technologies in view of their unique structural features associated with the layered structure and ultrathin thickness. Because the inert basal plane accounts for the majority of a TMDC's bulk, activation of the basal plane sites is necessary to fully exploit the intrinsic potential of TMDCs. Here, recent advances on TMDCs-based hybrids/composites with greatly enhanced electrochemical activity are reviewed. After a summary of the synthesis of TMDCs with different sizes and morphologies, comprehensive in-plane activation strategies are described in detail, mainly including in-plane-modification-induced phase transformation, surface-layer modulation, and interlayer modification/coupling. Simultaneously, the underlying mechanisms for improved electrochemical activities are highlighted. Finally, the strategic evaluation on further research directions of TMDCs in-plane activation is featured. This work would shed some light on future design trends of TMDCs-based functional materials for electrochemical energy-related applications.
鉴于过渡金属二硫属化物（TMDCs）具有与层状结构和超薄厚度相关的独特结构特征，它们在电化学能量转换技术方面具有巨大潜力。由于惰性基面占TMDCs整体的大部分，因此激活基面位点对于充分发挥TMDCs的内在潜力是必要的。在此，综述了具有大大增强的电化学活性的基于TMDCs的杂化材料/复合材料的最新进展。在总结了不同尺寸和形态的TMDCs的合成之后，详细描述了全面的面内激活策略，主要包括面内修饰诱导的相变、表面层调制和层间修饰/耦合。同时，突出了改善电化学活性的潜在机制。最后，对TMDCs面内激活的进一步研究方向进行了战略评估。这项工作将为基于TMDCs的用于电化学能量相关应用的功能材料的未来设计趋势提供一些启示。
