Successful functionalization of superporous zeolite templated carbon using aminobenzene acids and electrochemical methods

Carolina González-Gaitán, Ramiro Ruiz-Rosas, Hirotomo Nishihara, Takashi Kyotani, Emilia Morallón, Diego Cazorla-Amorós

    研究成果: Article査読

    10 被引用数 (Scopus)

    抄録

    A novel and selective electrochemical functionalization of a highly reactive superporous zeolite templated carbon (ZTC) with two different aminobenzene acids (2-aminobenzoic and 4-aminobenzoic acid) was achieved. The functionalization was done through potentiodynamic treatment in acid media under oxidative conditions, which were optimized to preserve the unique ZTC structure. Interestingly, it was possible to avoid the electrochemical oxidation of the highly reactive ZTC structure by controlling the potential limit of the potentiodynamic experiment in presence of aminobenzene acids. The electrochemical characterization demonstrated the formation of polymer chains along with covalently bonded functionalities to the ZTC surface. The functionalized ZTCs showed several redox processes, producing a capacitance increase in both basic and acid media. The rate performance showed that the capacitance increase is retained at scan rates as high as 100 mV s-1, indicating that there is a fast charge transfer between the polymer chains formed inside the ZTC porosity or the new surface functionalities and the ZTC itself. The success of the proposed approach was also confirmed by using other characterization techniques, which confirmed the presence of different nitrogen groups in the ZTC surface. This promising method could be used to achieve highly selective functionalization of highly porous carbon materials.

    本文言語English
    ページ(範囲)157-166
    ページ数10
    ジャーナルCarbon
    99
    DOI
    出版ステータスPublished - 2016 4 1

    ASJC Scopus subject areas

    • 化学 (全般)
    • 材料科学(全般)

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