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ÐÂÉÏÏßµÄNature Chemistry¿¯·¢ÁËÌâΪThe chemistry of two-dimensional layered transition metal dichalcogenide nanosheetsµÄ×îÐÂ×ÛÊö£º¶þά²ã×´¹ý¶É½ðÊôÁòÊô»¯ºÏÎïÄÉÃׯ¬µÄ»¯Ñ§¡£½éÉÜÁ˽üÄêÀ´¹ý¶É½ðÊôÁòÊô»¯ºÏÎïÄÉÃׯ¬ÁìÓòµÄÑо¿½øÕ¹ÒÔ¼°Ó¦ÓÃǰ¾°¡£
Ultrathin two-dimensional nanosheets of layered transition metal dichalcogenides (TMDs) are fundamentally and technologically intriguing. In contrast to the graphene sheet, they are chemically versatile. Mono- or few-layered TMDs ¡ª obtained either through exfoliation of bulk materials or bottom-up syntheses ¡ª are direct-gap semiconductors whose bandgap energy, as well as carrier type (n- or p-type), varies between compounds depending on their composition, structure and dimensionality. In this Review, we describe how the tunable electronic structure of TMDs makes them attractive for a variety of applications. They have been investigated as chemically active electrocatalysts for hydrogen evolution and hydrosulfurization, as well as electrically active materials in opto-electronics. Their morphologies and properties are also useful for energy storage applications such as electrodes for Li-ion batteries and supercapacitors.
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