Synthesis and Electrochemical Performance of Heteroatom-Incorporated Ordered Mesoporous Carbons

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• 作者：Xiaochen Zhao ; Aiqin Wang ; Jingwang Yan ; Gongquan Sun ; Lixian Sun ; Tao Zhang
• 刊名：Chemistry of Materials
• 出版年：2010
• 出版时间：October 12, 2010
• 年：2010
• 卷：22
• 期：19
• 页码：5463-5473
• 全文大小：1290K
• 年卷期：v.22,no.19(October 12, 2010)
• ISSN：1520-5002

文摘

Heteroatom-incorporated 2D ordered mesoporous carbons (OMCs) were fabricated via a one-pot organic−organic aqueous self-assembly approach, using resorcinol (R) and formaldehyde (F) as the carbon precursor and triblock copolymer Pluronic F127 as the mesoporous structure template. In this approach, RF resin, boric acid and/or phosphoric acid, and F127 underwent a self-assembly process under a strong acidic condition to form a polymer with ordered mesostructure, which was then carbonized at 800 °C in a nitrogen atmosphere to form B-incorporated, P-incorporated, or B, P-coincorporated OMCs. Nitrogen sorption, X-ray diffraction (XRD), and transmission electron microscopy (TEM) revealed that the heteroatom-incorporated OMCs possessed highly ordered mesoporous structures, uniform pore size distributions, and large surface areas ranging from 500 to 700 m²/g. The incorporation of heteroatoms effectively limited the framework shrinkage during the carbonization process, and simultaneously increased the surface oxygen groups in the carbons. The resulting heteroatom-incorporated OMCs exhibited superior electrochemical performances to nonincorporated counterpart when used as electrodes of supercapacitors.