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- Title
Molecular‐Based Design of Microporous Carbon Nanosheets.
- Authors
He, Lei; Li, Wen‐Cui; Xu, Shuang; Lu, An‐Hui
- Abstract
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. Between the sheets: Microporous carbon nanosheets (MCNs) possess nanoscale thicknesses, which allow faster mass and heat transport compared with that of their bulk counterparts, and thus, exhibit excellent performance in adsorption, catalysis, energy storage, and so forth. Three types of synthetic strategies (see figure) are introduced herein, and the principles of molecular assembly for precise control of the structure of MCNs are highlighted.
- Subjects
CARBON; MOLECULES; NANOCHEMISTRY; PYROLYSIS; FUSED salts
- Publication
Chemistry - A European Journal, 2019, Vol 25, Issue 13, p3209
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.201804747