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- W2969355887 abstract "N-doped porous carbon-based materials (NPCMs) with hierarchical pore structures have been considered to be a suitable alternative to meet the ever-increasing demands for supercapacitors; however, the universally low yield of the NPCMs has restricted their practical applications. Herein, a series of NPCMs with hierarchical pore structures are synthesized with significantly increased yields through the carbonization of the copolymer made from 2,4,6-tris(chloromethyl)mesitylene and p-phenylenediamine. The development of the hierarchical pore structures and the N content of the NPCMs show opposite dependences on the increasing carbonization temperature. The NPCM exhibits the best capacitive ability only if the sufficiently developed hierarchical structures and moderate N content are achieved simultaneously. Therefore, NPCM-600 that is carbonized at 600 °C with an excellent yield of 53.6% (wt.), large specific surface area of 1778 m2 g−1, and N content of 4.13% (wt.) yields an ideal specific capacitance of 298 F g−1 at the current density of 1 A g−1 and a perfect cycling stability of the capacitance after 10,000 cycles at 10 A g−1. The yield of the NPCM-600 is considerably higher than those for many other recently reported NPCMs. NPCM-600 also shows better capacitance than those of the other reported NPCMs, such as NOPC-bis-CN-3 (167 F g−1) and CHCPB-K-600 (260 F g−1)." @default.
- W2969355887 created "2019-08-29" @default.
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- W2969355887 date "2019-12-01" @default.
- W2969355887 modified "2023-10-16" @default.
- W2969355887 title "N-doped porous carbons with increased yield and hierarchical pore structures for supercapacitors derived from an N-containing phenyl-riched copolymer" @default.
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- W2969355887 doi "https://doi.org/10.1016/j.jiec.2019.08.041" @default.
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