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The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets

TitleThe chemistry of two-dimensional layered transition metal dichalcogenide nanosheets
Publication TypeJournal Article
Year of Publication2013
AuthorsChhowalla, Manish, Shin Hyeon Suk, Eda Goki, Li Lain-Jong, Loh Kian Ping, and Zhang Hua
JournalNature Chemistry
Date Published04/2013
KeywordsCatalysis, Materials chemistry, nanotechnology

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} — obtained either through exfoliation of bulk materials or bottom-up syntheses — 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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