Abstract

Various kinds of carbonaceous materials have been extensively studied for use as the electrodes in energy storage devices for transportation and renewable energy storage applications. Capacitive electrodes (CEs) are used in a broad range of systems related to both energy and water infrastructures across the globe. Carbide-derived Carbon (CDC), a suitable carbon material for supercapacitor applications, has been presented due to its simple preparation and easy control of structures and properties such as graphitization and porosity. CDCs produced by binary and ternary carbides showed significantly improved electrochemical capacity as various electrodes for supercapacitor and lithium ion battery. In this work, we demonstrate significantly improved electrochemical capacitance of a CDC by controlling pore texture and crystallization through the introduction of pre-treatment at high temperature for supercapacitor application. By tailoring the pore texture and graphitic structure of CDCs as pre-vacuum treatment from carbide, the electrode showed a high increase of capacitance under wide range of various scan rates from 2 mV/s ~ 100 mV/s.

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