Electrostatically self-assembled dual-functional MXene/CoNiMn-LDH composites for electrochemical energy storage and glucose sensor applications
발표자
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초록
내용
The hierarchical MXene/NiCoMn-LDH NCs were successfully constructed using a hydrothermal approach via electrostatic coupling between negatively charged MXene nanosheets and positively charged CoNiMn-LDH network. Consequently, the addition of MXene may prevent the aggregation of the CoNiMn-LDH nanosheets, significantly enhancing the electrical conductivity and providing more active sites. The MXene/CoNiMn-LDH electrode has a specific capacitance of 906 F g−1 at 1 A g−1 and outstanding capacity retention of 90.8% after 10,000 cycles. Additionally, the MXene/CoNiMn-LDH/AC ASC device provides a maximum energy and power density of 69.5 Wh kg−1 and 1500 W kg−1, respectively. In addition to this, the constructed MXene/CoNiMn/GCE electrode-based non-enzymatic glucose sensor demonstrated a linear range with a significant detection limit of 0.24 μM. Thus, this study demonstrates that MXene/CoNiMn-LDH is a promising electrode material for energy and electrochemical glucose sensing applicati