Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 30, Issue 15, Pages 14382-14390Publisher
SPRINGER
DOI: 10.1007/s10854-019-01807-x
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Funding
- Suzhou Science and Technology Project [SYG201320]
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A facile self-doping and self-templating strategy to prepare three-dimensional nitrogen-doped hierarchical porous carbons via direct carbonization of mussel nacre (MN) is developed. Self-templating can be effective to retain the origin structure and the volatile organic components can serve as carbon precursors for porous carbon. The typical MN-derived carbon (MNC) carbonized at 800 degrees C is endowed with high surface area of unique hierarchical porosity (consisting of macropores, mesopores and micropores), and high content of heteroatom functionalities (1.30 at.% N). Consequently, the performance in the alkaline KOH electrolyte system was particularly promising with the MNC-6 electrodes showing a high capacitance of 243.7 F g(-1) at a current density of 1.0 A g(-1) and a promising cycling stability with 85.7% capacitance retention at 1.0 A g(-1) after 10,000 cycles. The present work provides a new avenue for facile and high efficient construction of N-doped hierarchical porous carbons for potential supercapacitor.
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