【摘 要】
：
The trade-off between the electrochemical performance and mechanical strength is still a challenge for Ti3C2Tx free-standing electrode.Herein,a facile approach was proposed to fabricate a Microfibrillated cellulose@Ti3C2Tx (MFC@Ti3C2Tx) self-assembled mic
【机 构】
：
School of Chemistry and Chemical Engineering,State Key Laboratory of Urban Water Resource and Enviro
论文部分内容阅读
The trade-off between the electrochemical performance and mechanical strength is still a challenge for Ti3C2Tx free-standing electrode.Herein,a facile approach was proposed to fabricate a Microfibrillated cellulose@Ti3C2Tx (MFC@Ti3C2Tx) self-assembled microgel film by means of hydrogen bonding linkage.Benefiting from the rich hydroxyl groups on the MFC,the Ti3C2Tx nanosheets coated on the MFC in a time scale of minutes (within 1 min) instead of hours.The ultralong 1 D frame of MFC effectively mitigated the re-aggregation of Ti3C2Tx nanosheet.The fluffy MFC@Ti3C2Tx film structure and the constructed 1D/2D conducting Ti3C2Tx pathways in horizontal and vertical directions endowed the fast ion transport of the electrolytes and the improved accessibility to the Ti3C2Tx surface.As a result,the freestanding MFC@Ti3C2Tx microgel film delivered a high specific capacitance of 451F/g.And the rate performance was increased to 71％ from the 64％ of that of pristine Ti3C2Tx film.Furthermore,the tensile strength of MFC@Ti3C2Tx film was also promoted to 46.3 MPa,3 folds of that of the pristine Ti3C2Tx film,due to the high strength of MFC and the hydrogen bonding effect.
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