In situ fabrication of dry/gel bilayer Ti3C2Tx films for high-rate micro-supercapacitors
Chemical Communications(2022)
Abstract
A H2SO4-Ti3C2Tx ion-gel is in situ fabricated to prevent the restacking of Ti3C2Tx for high-rate micro-supercapacitors. The ion-gel pillared by an electrolyte possesses an enlarged interlayer spacing facilitating ion transport. Furthermore, a bilayer structure is designed with dry Ti3C2Tx for fast electron conduction. The bilayer Ti3C2Tx film shows improved capacitance from 49% to 73% of the initial capacitance at a high scan rate of 200 mV s-1, along with excellent cycle stability. This study opens up a concise and efficient way for high-performance micro-supercapacitors.
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Key words
dry/gel bilayer fabrication,high-rate,micro-supercapacitors
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