AI Article Synopsis
- Two-dimensional mesoporous hexagonal carbon sheets (MHCSs) were created using a chemical vapor deposition method with mesoporous Mg(OH) sheets as a template and acetylene gas as the carbon source.
- MHCSs have a specific surface area of 1785 m²/g and feature a unique micropore-mesopore structure that facilitates quick ion movement, leading to enhanced electrochemical performance.
- The MHCS electrodes achieved a maximum specific capacitance of 162 F/g and showed impressive energy and power densities of 67 Wh/kg and 14.97 kW/kg, respectively, when tested with a specific electrolyte.
Article Abstract
Two-dimensional mesoporous hexagonal carbon sheets (MHCSs) have been prepared via a chemical vapor deposition method employing mesoporous Mg(OH) hexagonal sheets as the template and acetylene gas as the carbon precursor. MHCSs with porosity in the micropore-mesopore range have a high specific surface area of 1785 m·g. The hierarchical microporous-mesoporous pore structure enables rapid ion transport across the hexagonal carbon sheets, resulting in superior electrochemical performance. The MHCS electrodes showed a maximum specific capacitance of 162 F·g at 5 mV s using the electrolyte 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIM-TFSI). MHCS symmetric coin cells exhibited a maximum energy density of 67 Wh·kg at 0.5 A·g and a maximum power density of 14.97 kW·kg at 10 A·g.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9386700 | PMC |
| http://dx.doi.org/10.1021/acsomega.2c01149 | DOI Listing |
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