The effect of temperature deposited on the performance of ZnO-CNT-graphite for supercapacitors

International Conference on Energy Sciences 2016

能源学;物理学

Darari, Alfin^1 ; Hakim, Istajib S.^1 ; Priyono^1 ; Subagio, Agus^1 ; Pardoyo^2 ; Subhan, Achmad^3

Department of Physics, Faculty of Science and Mathematics, Diponegoro University, Indonesia^1

Department of Chemistry, Faculty of Science and Mathematics, Diponegoro University, Indonesia^2

Center of Physics Research, LIPI, Indonesia^3

关键词: Crystal size;    Effect of temperature;    Electrochemical impedance spectrometry;    High conductivity;    High electrical conductivity;    Large surface area;    Nanocomposite electrodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/877/1/012006/pdf
DOI  :  10.1088/1742-6596/877/1/012006

来源: IOP

【 摘 要 】

Carbon nanotubes (CNTs), graphite are now widely studied as the electrodes of supercapacitor, owing to their high conductivity, large surface area, chemical stability, etc. A lot of research has been focused on Carbon/metal oxide nanocomposite electrode for Electrode supercapacitor because it will increase the total capacitance. In this research, ZnO nanoparticles were deposited onto substrate CNT:Graphite in different temperatures such as 300°, 350°, and 400°C. The characterization of the crystal size using X-Ray Diffraction (XRD) patterns showed ZnO material peak was detected a ZnO crystallite. The size of ZnO crystallite in 300°, 350°, and 400°C consecutively is 101.1; 103.4; and 116.7 nm. The test results are Electrochemical impedance spectrometry (EIS) high electrical conductivity values obtained on the composition of ZnO-CNT-graphite with a temperature of 350°C 4.6 (S/m); and (2) the highest value of capacitance in 300°C is 1.23 F/g.