MnS@CoMn-LDH composite material, and preparation method and application thereof
A composite material and thermal reaction technology, applied in the field of electrochemistry and nanomaterials, can solve the problems of unsatisfactory electrochemical performance, limited application, low conductivity, etc., and achieve the advantages of rapid electron transmission, simple preparation method, and high current effect of density
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Embodiment 1
[0031] A kind of preparation method of MnS@CoMn-LDH composite material such as figure 1 shown, including the following steps:
[0032] The first step is hydrothermal, 0.1g MnCl 2 4H 2 O was dissolved in 25mL of deionized water, and 5mL of 0.1mol / L Na 2 S, after magnetic stirring for 20min, transfer to a 50mL polytetrafluoroethylene-lined stainless steel autoclave for the first step of hydrothermal reaction, the hydrothermal reaction temperature is 120°C, and the hydrothermal reaction time is 8h; Take it out to cool, then centrifuge, wash, and vacuum dry at 60°C for 12 hours to obtain MnS powder. In the second step of hydrothermal treatment, 1mmolMnCl 2 4H 2 O, 2mmol Co(NO 3 ) 2 ·6H 2 O, 5 mmol NH 4 F. Dissolve 5 mmol urea in deionized water, stir magnetically for 30 minutes, add the MnS sample prepared by hydrothermal treatment in the first step, and transfer it to a polytetrafluoroethylene-lined stainless steel autoclave after mixing evenly, and carry out the second ...
Embodiment 2
[0035] A preparation method of MnS@CoMn-LDH composite material, comprising the following steps:
[0036] The first step is hydrothermal, 0.1g MnCl 2 4H 2 O was dissolved in 25mL of deionized water, and 5mL of 0.1mol / L Na 2 S, after magnetic stirring for 20min, transfer to a 50mL polytetrafluoroethylene-lined stainless steel autoclave for the first step of hydrothermal reaction, the hydrothermal reaction temperature is 150°C, and the hydrothermal reaction time is 8h; Take it out to cool, then centrifuge, wash, and vacuum dry at 60°C for 12 hours to obtain MnS powder. In the second step of hydrothermal treatment, 1mmolMnCl 2 4H2 O, 2mmol Co(NO 3 ) 2 ·6H 2 O, 5 mmol NH 4 F. Dissolve 5 mmol urea in deionized water, stir magnetically for 30 minutes, add the MnS sample prepared by hydrothermal treatment in the first step, and transfer it to a polytetrafluoroethylene-lined stainless steel autoclave after mixing evenly, and carry out the second step of water heating. Thermal r...
Embodiment 3
[0039] A preparation method of MnS@CoMn-LDH composite material, comprising the following steps:
[0040] The first step is hydrothermal, 0.1g MnCl 2 4H 2 O was dissolved in 25mL of deionized water, and 5mL of 0.1mol / L Na 2 S, after magnetic stirring for 20min, transfer to a 50mL polytetrafluoroethylene-lined stainless steel autoclave for the first step of hydrothermal reaction, the hydrothermal reaction temperature is 120°C, and the hydrothermal reaction time is 12h; Take it out to cool, then centrifuge, wash, and vacuum dry at 60°C for 12 hours to obtain MnS powder. In the second step of hydrothermal treatment, 1mmolMnCl 2 4H 2 O, 2mmol Co(NO 3 ) 2 ·6H 2 O, 5 mmol NH 4 F. Dissolve 5 mmol urea in deionized water, stir magnetically for 30 minutes, add the MnS sample prepared by hydrothermal treatment in the first step, and transfer it to a polytetrafluoroethylene-lined stainless steel autoclave after mixing evenly, and carry out the second step of water heating. Therma...
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