Next Article in Journal
A Novel Personalized Diagnosis Methodology Using Numerical Simulation and an Intelligent Method to Detect Faults in a Shaft
Next Article in Special Issue
Enhancement and Reduction of Nonradiative Decay Process in Organic Light-Emitting Diodes by Gold Nanoparticles
Previous Article in Journal
Assessing the Dynamic Performance of Microbots in Complex Fluid Flows
Previous Article in Special Issue
An Investigation of the Methods of Logicalizing the Code-Checking System for Architectural Design Review in New Taipei City
Article Menu

Export Article

Open AccessArticle
Appl. Sci. 2016, 6(12), 413;

Characterization of Transition-Metal Oxide Deposition on Carbon Electrodes of a Supercapacitor

Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
Department of Electrical Engineering, Cheng Shiu University, Kaohsiung 833, Taiwan
Author to whom correspondence should be addressed.
Academic Editor: Jiazhao Wang
Received: 30 September 2016 / Revised: 2 December 2016 / Accepted: 5 December 2016 / Published: 7 December 2016
Full-Text   |   PDF [1920 KB, uploaded 7 December 2016]   |  


In order to fabricate the composite electrodes of a supercapacitor, transition-metal oxide materials NiO and WO3 were deposited on carbon electrodes by electron beam evaporation. The influences of various transition-metal oxides, scan rates of cyclic voltammograms (CVs), and galvanostatic charge/discharge tests on the characteristics of supercapacitor were studied. The charge/discharge efficiency and the lifetime of the composite electrodes were also investigated. It was found that the composite electrodes exhibited more favorable capacitance properties than those of the carbon electrodes at high scan rates. The results revealed the promotion of the capacitance property of the supercapacitor with composite electrode and the improving of the decay property in capacitance at high scan rate. In addition, the charge/discharge efficiency is close to 100% after 5000 cycles, and the composite electrode retains strong adhesion between the electrode material and the substrate. View Full-Text
Keywords: electron beam evaporation; composite electrode; supercapacitor; charge/discharge efficiency electron beam evaporation; composite electrode; supercapacitor; charge/discharge efficiency

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Chen, Y.-C.; Wen, C.-Y.; Wang, C.-M.; Ho, C.-W.; Lin, S.-Y.; Chen, Y.-L. Characterization of Transition-Metal Oxide Deposition on Carbon Electrodes of a Supercapacitor. Appl. Sci. 2016, 6, 413.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top