Ni-NiO/C core-shell structure nano material electrocatalyst and preparation method thereof
A technology of electrocatalysts and nanomaterials, applied in the field of Ni-NiO/C core-shell structure nanomaterial electrocatalysts and their preparation, can solve the problems of low hydrogen evolution catalytic efficiency, achieve high catalytic activity, good product appearance, and mild conditions Effect
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[0048] A preparation method of the Ni-NiO / C core-shell structure nano material electrocatalyst, comprising the following steps:
[0049] (1) Dissolving nickel chloride hexahydrate in distilled water to form a first solution; every 10 mL of distilled water corresponds to 0.7-0.9 g of nickel chloride hexahydrate.
[0050] (2) aminoacetic acid and isopropanol are added in the above-mentioned first solution, form the second solution; Every 30mL isopropanol solution corresponds to 0.3-0.5g aminoacetic acid; The volume ratio of isopropanol solution and the distilled water of step 1 is 2-2.2:1.
[0051] (3) Stir the above second solution magnetically for 10-20min to form a suspension, transfer the suspension into a container, cool to room temperature after gradient heating reaction, and obtain a light green precipitate; gradient heating includes: the first heating stage, The reaction temperature is 100-160°C, and the reaction time is 2-2.5 hours; the second heating stage is 180-200°...
Embodiment 1
[0056] A Ni-NiO / C core-shell nanomaterial electrocatalyst, the electrocatalyst is a core-shell structure obtained by compounding and calcining nickel chloride hexahydrate and ammonia acetic acid.
[0057] A preparation method of the Ni-NiO / C core-shell structure nano material electrocatalyst, comprising the following steps:
[0058] (1) Dissolving nickel chloride hexahydrate in distilled water to form a first solution; every 10 mL of distilled water corresponds to 0.8 g of nickel chloride hexahydrate.
[0059] (2) Add aminoacetic acid and isopropanol to the above-mentioned first solution to form a second solution; every 30 mL of isopropanol solution corresponds to 0.4 g of aminoacetic acid; the volume ratio of the isopropanol solution to the distilled water in step 1 is 2.1: 1.
[0060] (3) Stir the above second solution magnetically for 10-20min to form a suspension, transfer the suspension into a container, cool to room temperature after gradient heating reaction, and obtai...
Embodiment 2
[0065] A Ni-NiO / C core-shell nanomaterial electrocatalyst, the electrocatalyst is a core-shell structure obtained by compounding and calcining nickel chloride hexahydrate and ammonia acetic acid.
[0066] A preparation method of the Ni-NiO / C core-shell structure nano material electrocatalyst, comprising the following steps:
[0067] (1) Dissolving nickel chloride hexahydrate in distilled water to form a first solution; every 10 mL of distilled water corresponds to 0.7 g of nickel chloride hexahydrate.
[0068] (2) Add aminoacetic acid and isopropanol to the above-mentioned first solution to form a second solution; every 30mL isopropanol solution corresponds to 0.3g aminoacetic acid; the volume ratio of the isopropanol solution to the distilled water in step 1 is 2: 1.
[0069] (3) Magnetically stir the above-mentioned second solution for 20 minutes to form a suspension, transfer the suspension to a container, cool to room temperature after the gradient heating reaction, and o...
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