Controlled preparation method of nano-manganese oxide
A nano-manganese dioxide and manganese dioxide technology, which is applied in the fields of manganese oxide/manganese hydroxide, nanotechnology, hybrid/electric double-layer capacitor manufacturing, etc., can solve the problems of uncontrollable reaction product morphology and large particle size
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[0019] A controllable preparation method of nano-manganese dioxide, adopting the following steps:
[0020] Step 1: Preparation of manganese dioxide active material:
[0021] At 200moL concentration is 0.1mol / L KMn0 4 Surfactants were added into the solution, and 300moL of 0.2mol / L Mn(CH 3 COO) 2 solution, stirred for 8 hours, the precipitated product was washed with deionized water and ethanol and filtered, and the filtrate was dried and ground to obtain a brown-black manganese dioxide active material.
[0022] Step 2: Prepare manganese dioxide electrode sheet:
[0023] Mix manganese dioxide active material, conductive carbon black and binder polytetrafluoroethylene (PTFE), stir it into plasticine with N-methylpyrrolidone, and press it down on the Ti sheet to make a manganese dioxide electrode sheet .
[0024] Among them, the surfactant adopts CTAB. The mixing mass ratio of manganese dioxide active material, conductive carbon black and binder polytetrafluoroethylene ...
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