CuO-NiO/rGO composite material with efficient electro-catalysis oxygen reduction performance
A composite material, cuo-nio technology, applied in the direction of circuits, electrical components, battery electrodes, etc., can solve the problems of undiscovered materials, and achieve the effects of simple post-processing, low energy consumption, and easy control of reaction parameters
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Embodiment 1
[0047] In a small 100 mL beaker, while stirring with a magnetic stirrer, add 40 mL of deionized water, and slowly add 0.86 g (0.005 mol) of CuCl 2 2H 2 O, Ni(NO 3 ) 2 ·6H 2 O 1.46 g (0.005 mol) and NaOH 1.60 g (0.04 mol), stirred for 5 min to form a blue-green homogeneous liquid, added 10 mL of ethanol, 5 mL of ethylene glycol and 4 mL of 6 g / L graphene oxide to fully stir the solution ( about 10 min), transfer the reaction solution into a 100 ml autoclave, heat to 190 ºC, take it out after 24 hours at a constant temperature, wash the product three times with absolute ethanol, then wash three times with double distilled water, put into vacuum distillation Distilled under reduced pressure at 50 ºC for 20 min in the device to obtain a black powdery solid, which is the CuO-NiO / rGO composite material with high-efficiency electrocatalytic oxygen reduction performance. It has been tested that the mass ratio of CuO-NiO to rGO in the CuO-NiO / rGO composite is about 100:3, and the m...
Embodiment 2
[0050] In a small 100 mL beaker, while stirring with a magnetic stirrer, add 40 mL of deionized water, and slowly add 0.86 g (0.005 mol) of CuCl 2 2H 2 O, 1.46g (0.005mol) Ni(NO 3 ) 2 ·6H 2 O and 1.60 g (0.04 mol) NaOH, stirred for 5 min to form a blue-green homogeneous liquid, added 10 mL of ethanol, 5 mL of ethylene glycol, and 6 mL of 6 g / L graphene oxide and stirred the solution fully (about 10 min). The reaction solution was transferred to a 100 ml autoclave, heated to 190 ºC, and taken out after 24 hours at a constant temperature. The product was washed three times with absolute ethanol, and then washed three times with double distilled water, and then placed in a vacuum distillation device at 50 ºC. After pressure distillation for 20 min, a black powdery solid was obtained, which is the CuO-NiO / rGO composite material with high-efficiency electrocatalytic oxygen reduction performance. It has been detected that the mass ratio of CuO-NiO to rGO in the CuO-NiO / rGO compo...
Embodiment 3
[0053] In a small 100 mL beaker, while stirring with a magnetic stirrer, add 40 mL of deionized water, and slowly add 0.86 g (0.005 mol) of CuCl 2 2H 2 O, 1.46g (0.005mol) Ni(NO 3 ) 2 ·6H 2 O and 1.60 g (0.04 mol) NaOH, stirred for 5 min to form a blue-green homogeneous liquid, added 10 mL of ethanol, 5 mL of ethylene glycol and 5 mL of 6 g / L graphene oxide, stirred the solution thoroughly (about 10 min), Transfer the reaction solution into a 100 ml autoclave, heat to 190°C, take it out after 24 hours at a constant temperature, wash the product three times with absolute ethanol, then wash three times with twice distilled water, put it into a vacuum distillation device at 50°C to reduce After pressure distillation for 20 min, a black powdery solid was obtained, which is the CuO-NiO / rGO composite material with high-efficiency electrocatalytic oxygen reduction performance. It has been detected that the mass ratio of CuO-NiO to rGO in the CuO-NiO / rGO composite is about 100:4, ...
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