The effect of oxygen and nitrogen functional groups on the electrochemical performance of ordered carbon

• Published in: Jurnal Teknologi
• Main Author: Razman N.I.H.; Endud S.; Misnon I.I.
• Format: Article
• Language: English
• Published: Penerbit UTM Press 2019
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065332727&doi=10.11113%2fjt.v81.12827&partnerID=40&md5=f8423167e69a4d913140316b24a6b071

Ordered carbon (OC) has been synthesised via replication strategy by using Santa Barbara Amorphous (SBA)-15 as a template. The successful replication process has been proven by nitrogen adsorption-desorption analyzer and transmission electron microscopy (TEM). The OC showed well-aligned mesopore system, similar to the SBA-15 template. The oxygen and nitrogen functional groups introduced were identified by X-ray photoelectron spectroscopy (XPS). Electrochemical performance of the oxygen containing OC (OC-O), nitrogen containing OC (OC-N), and oxygen nitrogen containing OC (OC-ON) was then evaluated by cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) using a three electrode system in 1M KOH aqueous electrolyte. The OC-O, OC-N, and OC-ON showed significant increment in specific capacitance, C S and exhibited good capacitance retention (CR, %) over high scan rate and current density. © 2019 Penerbit UTM Press.