Aluminum-doped manganese dioxide-based flexible supercapacitor electrode material and preparation and application thereof
A supercapacitor, manganese dioxide-based technology, used in hybrid capacitor electrodes, hybrid/electric double-layer capacitor manufacturing, etc., can solve the problems affecting device capacity, poor conductivity, etc., and achieve easy availability of raw materials, low cost, and environmental friendly. Effect
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Embodiment 1
[0061] A preparation method of aluminum-doped manganese dioxide-based flexible supercapacitor electrode material, which integrates Al-MnO on activated carbon cloth substrate through hydrothermal reaction 2 nanosheets, resulting in Al-MnO 2 @CC material is the electrode material of aluminum-doped manganese dioxide-based flexible supercapacitor.
[0062] More specifically, the following steps are included:
[0063] (1) For a typical carbon cloth substrate (size 1cm×0.5cm×0.033cm), first use 100ml of acetone, isopropanol, and ethanol to sonicate for 30 minutes, and then use concentrated HNO 3 Acidify for 15 minutes, wash with deionized water, and dry overnight in a vacuum oven at 60°C to obtain an activated carbon cloth substrate. Put the activated carbon cloth substrate in 100mL deionized water, and add 0.8g KMnO 4 , 0.45mM AlCl 3 ,
[0064] (2) Add a magnetic stirrer and stir for 30min, and KMnO 4 , AlCl 3 , carbon cloth substrate, and deionized water are evenly mixed to ...
Embodiment 2
[0070] Compared with Example 1, AlCl in step (1) 3 The content was changed from 0.45mM to 0.22mM, and other conditions remained unchanged.
Embodiment 3
[0072] Compared with Example 1, AlCl in step (1) 3 The content was changed from 0.45mM to 0.90mM, and other conditions remained unchanged.
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