One step hydrothermal synthesis of a carbon nanotube/cerium oxide nanocomposite and its electrochemical properties.
A carbon nanotube (CNT)/cerium oxide composite was prepared by a one-pot hydrothermal reaction in the presence of KOH and capping agent polyvinylpyrrolidone. The nanocomposite displayed pronounced capacitive behaviour with very small diffusion resistance. The electrochemical performance of the composite electrode in a symmetric supercapacitor displayed a high energy density of 35.9 Wh kg(-1) corresponding to a specific capacitance of 289 F g(-1). These composite electrodes also demonstrated a long cycle life with better capacity retention.
Department of Material Science and Engineering, Chonnam National University, 77, Yongbong-ro, Buk-Gu, Gwangju, 500757, Republic of Korea.
Ramchandra S
RS
Kalubarme
Yong-Han
YH
Kim
Chan-Jin
CJ
Park