Recycling of Waste Toner and its Electrochemical Performances for Supercapacitor

Abstract:

Utilization of the waste toner in wasted print cartridge was beneficial to the environmental protection and resource recycling. Fe₃O₄ has been obtained from the waste toner via magnetic separation and heat-treatment in present study. XRD measurement revealed the recuperated sample has ferriferrous oxide structure without other crystalline impurity. The electrochemical performances of recuperated Fe₃O₄, as the electrode active material for supercapacitor, was conducted by cyclic voltammetry and charge-discharge process. The results showed that the specific capacitance of Fe₃O₄ achieved 76.5 F/g under 50 mA/g current density, which possessed typical capacitive behaviors and good cycling stabilities. Based on the preferable electrochemical performances, Fe₃O₄ recovered from waste toner may be a potential alternative as electrode material for supercapacitor.

• Periodical: Applied Mechanics and Materials (Volumes 675-677)
• Pages: 689-692
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.675-677.689
• Online since: October 2014
• Authors: Ji Qing Mao, Yang Li*
• Keywords: Energy Conversion, Energy Storage, Fe₃O₄, Super-Capacitor (SC), Waste Toner

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