npsm 새물리 New Physics : Sae Mulli

pISSN 0374-4914 eISSN 2289-0041


Research Paper

New Physics: Sae Mulli 2015; 65: 287-290

Published online March 31, 2015

Copyright © New Physics: Sae Mulli.

Nitrogen-doped Activated Carbon and Its Electrochemical Properties

Ho Jun KIM, Hae Kyung JEONG*

Department of Physics, Institute of Basic Science, Daegu University, Gyeongsan 712-714, Korea


Received: December 9, 2014; Revised: February 23, 2015; Accepted: March 11, 2015

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have synthesized nitrogen-doped activated carbon by using a gelatin that is used in various foods, and we have used impedance spectroscopy to investigate its electrochemical properties. Three kinds of samples, precursor activated carbon (MSP20), nitrogen-doped activated carbon (N-MSP20), and nitrogen-doped activated carbon with heat treatment (HM-MSP20), are investigated, and the impedances of MSP20 and HM-MPS20 were similarly the lowest. The cyclic voltammetric current of HM-MSP20, however, was dominant compared to that of MSP20, implying that nitrogen doping had a positive effect on the capacitance. Therefore, nitrogen doping of activated carbon plays a positive and effective role in energy-storage devices.

Keywords: Graphene, Active carbon, Nitrogen doping

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