Thermal-exfoliated synthesis of N-rich carbon-based nanosheets from layered bulk crystals of a metal–hexamine framework†
Abstract
We develop a general strategy for the design of a series of 2D N-rich carbon-based nanomaterials through the thermal exfoliation of layered metal–hexamine framework microcrystals. By a facile pyrolysis, the sharply generated gases escape from the layered precursors, leading to the exfoliation of the layers and successful preparation of 2D carbon-based nanomaterials. This strategy can readily skip the complicated morphology engineering process of 2D metal–organic frameworks to produce 2D N-rich carbon-based nanomaterials on a large scale.