A multiple coating route to hollow carbon spheres with foam-like shells and their applications in supercapacitor and confined catalysis

Recent advances in the sol-gel process derived resorcinol-formaldehyde (RF) coating strategies offer new opportunities for the synthesis and applications of hollow carbon spheres (HCS). Due to the lack of an effective route for controlling the pore structures, the synthesis of RF resin derived HCS w...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2014-01, Vol.2 (17), p.6191-6197
Main Authors: Fang, Xiaoliang, Zang, Jun, Wang, Xingli, Zheng, Ming-Sen, Zheng, Nanfeng
Format: Article
Language:English
Subjects:
Carbon
Catalysis
Coating
Polymers
Porosity
Resins
Shells
Specific surface
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Summary:Recent advances in the sol-gel process derived resorcinol-formaldehyde (RF) coating strategies offer new opportunities for the synthesis and applications of hollow carbon spheres (HCS). Due to the lack of an effective route for controlling the pore structures, the synthesis of RF resin derived HCS with a high specific surface area for promising applications is still a challenge. In this work, we present a facile and effective template-directed multiple coating route to synthesize RF resin derived HCS with foam-like shells (HCSF). The as-synthesized HCSF exhibit a significantly higher specific surface area (1286 m super(2) g super(-1)) and larger pore volumes (2.25 cm super(3) g super(-1)) than the RF resin derived HCS (639 m super(2) g super(-1) and 0.56 cm super(3) g super(-1)). Our experiments demonstrated that the cationic surfactant CTAB plays a critical role in forming the foam-like pore structure. Compared with the RF resin derived HCS, the as-synthesized HCSF show advantageous performances in supercapacitor and confined catalysis due to their unique pore structures.
ISSN:2050-7488
2050-7496
DOI:10.1039/c3ta14881e