123rd General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Exhibition Hall 2
Time 4월 18일 (목요일) 11:00~12:30
Code ELEC.P-482
Subject Enhanced Electrochemical Performances of Multiple Heteroatom Doped Carbon Nanocomposites for Supercapacitors
Authors Dae Kyom Kim, Yuanzhe Piao*
Graduate School of Convergence Science and Technol, Seoul National University, Korea
Abstract To meet the challenge of enhancement of energy density for electrochemical double layer capacitors, single heteroatom doping such as nitrogen doped carbon nanocomposite has been widely researched because of its abundance and facile synthesis process. To further improve the energy density of carbon electrode materials for capacitor, functionalization of carbon materials with multiple-heteroatoms have been studied recently. In this work, multiple heteroatoms such as N, F, and B as doping sources were introduced in the carbon nanostructure to induce higher synergistic effects. Fluorinated polyamic acid and boric acid were used as a doped source and multiple heteroatom doped carbon nanocomposites were obtained by calcination process at high temperature. The as-prepared samples were systematically characterized by SEM, XPS, and Raman spectroscopy. Also, the synthesized carbon materials exhibited higher specific capacitance and higher rate capability than single nitrogen doped carbon.
E-mail daekyom@snu.ac.kr