TiO2 encrusted MXene as a High-Performance anode material for Li-ion batteries
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التاريخ
2022المؤلف
Abdurehman Tariq H., Nisar U., James Abraham J., Ahmad Z., AlQaradawi S., Kahraman R., Shakoor R.A.البيانات الوصفية
عرض كامل للتسجيلةالملخص
TiO2 has the potential to be a viable anode material for high-power lithium-ion batteries (LIBs). However, the lower electronic conductivity of TiO2 limits its practical applications. Here, the synthesis of novel TiO2 decorated Ti3C-MXene anode for LIBs using in-situ hydrolysis is discussed. MXenes are well known for their outstanding structural stability and superior electronic conductivities; thus, using MXenes as a host material for TiO2 may improve its structural and electrical characteristics. Scanning and transmission electron microscopy (SEM & TEM) examination revealed that the in-situ method resulted in a uniform and comformal coating of TiO2 (27.5 nm) on the inner and outer surfaces of MXene surfaces. BET analysis revealed that the larger surface area of MXene-TiO2 nanocomposite enhanced the active sites for lithium intercalation, which improved electrochemical performance. Furthermore, electrochemical impedance spectroscopy (EIS) analysis revealed faster kinetics for MXene-TiO2 materials when compared to the TiO2 anode. Compared to pristine TiO2 anode, 5 wt% MXene-TiO2 nanocomposite showed significantly better electrochemical performance, with an electrochemical capacity of around 200 mAhg?1 at 0.1C. Nanocomposites based on MXene-TiO2 exhibit outstanding electrochemical performance, indicating the potential for using MXene-based nanocomposites as an anode in high-performance lithium-ion batteries.
المجموعات
- الأبحاث [1349 items ]
- الهندسة الكيميائية [1141 items ]
- الكيمياء وعلوم الأرض [556 items ]
- أبحاث مركز جامعة قطر للعلماء الشباب [202 items ]