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- Title
Amorphous 2D materials containing a conjugated-polymer network.
- Authors
Yano, Shoichiro; Sato, Kosuke; Suzuki, Jumpei; Imai, Hiroaki; Oaki, Yuya
- Abstract
Two-dimensional materials, such as layered compounds and nanosheets, have attracted interest for their characteristic structures and properties. If layered materials containing functional organic molecules are synthesized, designed nanosheets can be obtained by exfoliation. Here we show the design and synthesis of an amorphous organic layered material containing a conjugated-polymer network, its exfoliation into nanosheets, and their applications. Copolymerization of benzoquinone and pyrrole generates random stacks of the conjugated polymer layers through successive C-C bond formation and pericyclic reaction under mild conditions at 60 °C. The amorphous organic layered materials are efficiently exfoliated into nanosheets in 44.6% after 1 h. The nanosheets are used as a metal-free electrocatalyst for hydrogen evolution reaction with the overpotential 0.28 V (vs. RHE). The present approach may be applied to the design of functional nanosheets with graphene-like structures under mild conditions. Exfoliation of layered materials is a common route to 2D materials. Here an amorphous copolymer of benzoquinone and pyrrole is exfoliated to yield an active HER catalyst.
- Subjects
TWO-dimensional materials (Nanotechnology); CONJUGATED polymers; POLYMER networks; COPOLYMERIZATION; BENZOQUINONES
- Publication
Communications Chemistry, 2019, Vol 2, Issue 1, pN.PAG
- ISSN
2399-3669
- Publication type
Article
- DOI
10.1038/s42004-019-0201-9