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Molecular‐Based Design of Microporous Carbon Nanosheets
Author(s) -
He Lei,
Li WenCui,
Xu Shuang,
Lu AnHui
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201804747
Subject(s) - microporous material , carbon fibers , materials science , nanotechnology , nanoscopic scale , pyrolysis , micrometer , diffusion , phase (matter) , chemical engineering , chemistry , organic chemistry , composite material , physics , optics , composite number , engineering , thermodynamics
Microporous carbons afford high surface areas, large pore volumes, and good conductivity, and are fascinating over a wide range of applications. Traditionally synthesized microporous carbon materials usually suffer from some limitations, such as poor accessibility and slow mass transport of molecules due to the micrometer‐scale diffusion pathways and space confinement imposed by small pore sizes. Two‐dimensional microporous carbon materials, denoted as microporous carbon nanosheets (MCNs), possess nanoscale thickness, which allows fast mass and heat transport along the z axis; thus overcoming the drawbacks of their bulk counterparts. Herein, recent breakthroughs in the synthetic strategies for MCNs are summarized. Three typical methods are discussed in detail with several examples: pyrolysis of organic precursors with 2D units, a templating method that uses wet chemistry, and the molten salt method. Among them, molecular‐based assembly of MCNs in the liquid phase shows more controllable morphology, thickness, and pore size distribution. Finally, challenges in this research area are discussed to inspire future explorations.