Preparation method and application of ZIF8-graphene-based rhodium-loaded aerogel catalyst
A graphene-based, ZIF-8 technology applied in the field of electrochemical materials to achieve high efficiency, high conductivity, and good anti-aging performance
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Embodiment 1
[0035] A kind of preparation method of the airgel catalyst of ZIF8-graphene base loaded rhodium, such as figure 1 shown, including the following steps:
[0036] (1) 0.03mmol of Zn(NO 3 ) 2 and 0.06mmol of dimethylimidazole were dissolved in 3mL of methanol solution, and ultrasonically dispersed for 30min to obtain Zn(NO 3 ) 2 Methanol solution and dimethylimidazole methanol solution (ZIF-8 source solution); 10 mL of graphene oxide solution with a concentration of 2 mg / mL was dissolved in 5 mL of methanol solution, and ultrasonically dispersed for 30 minutes to obtain graphene oxide methanol solution.
[0037] (2) Zn(NO 3 ) 2 The methanol solution and the dimethylimidazole methanol solution were respectively added to the graphene oxide methanol solution at the same time, kept at room temperature and mechanically stirred for 48 hours to obtain a ZIF-8 / GO solution.
[0038] (3) The ZIF-8 / GO solution was centrifuged and washed with methanol solution at a speed of 6000 rpm fo...
Embodiment 2
[0046] A kind of preparation method of the airgel catalyst of ZIF8-graphene base loaded rhodium, such as figure 1 shown, including the following steps:
[0047] (1) 0.06mmol of Zn(NO 3 ) 2 and 0.12mmol of dimethylimidazole were dissolved in 3mL of methanol solution, and ultrasonically dispersed for 30min to obtain Zn(NO 3 ) 2 Methanol solution and dimethylimidazole methanol solution (ZIF-8 source solution); 10 mL of graphene oxide solution with a concentration of 2 mg / mL was dissolved in 5 mL of methanol solution, and ultrasonically dispersed for 30 minutes to obtain graphene oxide methanol solution.
[0048] (2) Zn(NO 3 ) 2 The methanol solution and the dimethylimidazole methanol solution were respectively added to the graphene oxide methanol solution at the same time, kept at room temperature and mechanically stirred for 48 hours to obtain a ZIF-8 / GO solution.
[0049] (3) The ZIF-8 / GO solution was centrifuged and washed with methanol solution at a speed of 6000 rpm fo...
Embodiment 3
[0057] A kind of preparation method of the airgel catalyst of ZIF8-graphene base loaded rhodium, such as figure 1 shown, including the following steps:
[0058] (1) 0.3mmol of Zn(NO 3 ) 2 and 0.6mmol of dimethylimidazole were dissolved in 3mL of methanol solution, and ultrasonically dispersed for 30min to obtain Zn(NO 3 ) 2 Methanol solution and dimethylimidazole methanol solution (ZIF-8 source solution); 10 mL of graphene oxide solution with a concentration of 2 mg / mL was dissolved in 5 mL of methanol solution, and ultrasonically dispersed for 30 minutes to obtain graphene oxide methanol solution.
[0059] (2) Zn(NO 3 ) 2 The methanol solution and the dimethylimidazole methanol solution were respectively added to the graphene oxide methanol solution at the same time, kept at room temperature and mechanically stirred for 48 hours to obtain a ZIF-8 / GO solution.
[0060] (3) The ZIF-8 / GO solution was centrifuged and washed with methanol solution at a speed of 6000 rpm for ...
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