%0 Journal Article
%T Fiber-Shaped Electrochemical Capacitors Based on Plasma-Engraved Graphene Fibers with Oxygen Vacancies for Alternating Current Line Filtering Performance
%J -
%D 2019
%R https://doi.org/10.1021/acsaem.8b02060
%X Rapid advances in flexible and wearable electronics have enhanced demand for electrochemical capacitors (ECs) with fast frequency responses and supernal electrochemical supercapacitive properties. Here, we report the development of a fiber-shaped supercapacitor device based on Ar plasma-treated, highly electrically conductive reduced graphene oxide (rGO) fibers. Typical rGO-based, fiber-shaped ECs exhibit ultrafast frequency responses (phase angle = £¿81.1¡ã), a short resistor¨Ccapacitor (RC) time constant (0.471 ms at 120 Hz), and excellent cycle stability. The superior performance of our device relative to most advanced carbon-based ECs is promising for alternating current line filtering performance
%U https://pubs.acs.org/doi/10.1021/acsaem.8b02060