Journal
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
Volume 12, Issue 3, Pages 346-357Publisher
SPRINGER
DOI: 10.1007/s11705-018-1727-6
Keywords
porous polymers; porous carbons; sulfur and nitrogen doping; supercapacitor
Categories
Funding
- NSFC [21720102002, 21574080, 61306018, 51722304]
- Shanghai Committee of Science and Technology [15JC1490500, 16JC1400703]
- Shanghai Pujiang Talent Programme [18PJ1406100]
- Open Project Program of the State Key Laboratory of Supramolecular Structure and Materials (Jilin University) [sklssm201732]
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (Jilin University) [2016-08]
- State Key Laboratory for Mechanical Behavior of Materials (Jilin University) [20161803]
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Porous polymers have been recently recognized as one of the most important precursors for fabrication of heteroatom-doped porous carbons due to the intrinsic porous structure, easy available heteroatom-containing monomers and versatile polymerization methods. However, the heteroatom elements in as-produced porous carbons are quite relied on monomers. So far, the manipulating of heteroatom in porous polymer derived porous carbons are still very rare and challenge. In this work, a sulfur-enriched porous polymer, which was prepared from a diacetylene-linked porous polymer, was used as precursor to prepare S-doped and/or N-doped porous carbons under nitrogen and/or ammonia atmospheres. Remarkably, S content can sharply decrease from 36.3% to 0.05% after ammonia treatment. The N content and specific surface area of as-fabricated porous carbons can reach up to 1.32% and 1508 m(2).g(-1), respectively. As the electrode materials for electrical double-layer capacitors, as-fabricated porous carbons exhibit high specific capacitance of up to 431.6 F.g(-1) at 5 mV.s(-1) and excellent cycling stability of 99.74% capacitance retention after 3000 cycles at 100 mV.s(-1). Furthermore, as the electrochemical catalysts for oxygen reduction reaction, as-fabricated porous carbons presented ultralow half-wave-potential of 0.78 V versus RHE. This work not only offers a new strategy for manipulating S and N doping features for the porous carbons derived from S-containing porous polymers, but also paves the way for the structureperformance interrelationship study of heteroatoms codoped porous carbon for energy applications.
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