A direct methanol fuel cell runi/tio 2 Nanotube electrode and preparation method
A methanol fuel cell, nanotube technology, applied in battery electrodes, nanotechnology for materials and surface science, nanotechnology, etc., to achieve the effects of improving battery performance, improving CO poisoning resistance, and reducing costs
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Embodiment 1
[0008] (1) Pretreatment of titanium plate: Polish the titanium plate with metallographic sandpaper, ultrasonically degrease in acetone for 15 minutes, wash with methanol or ethanol, treat with 1 mol / L HF for 10 minutes, ultrasonically clean 3 times with twice distilled water, and dry .
[0009] (2) TiO 2 Preparation of nanotube / Ti: Anodize the treated titanium plate in electrolyte. Composition of electrolyte: 0.5%-1% HF, 1mol / L H 2 SO 4 . The electrolysis potential was 20 V, and the electrolysis time was 30 minutes. After electrolysis, wash with deionized water, dry, and roast in a muffle furnace at 500-600 ° C for 3 hours to obtain TiO 2 Nanotube / Ti.
[0010] (3) RuNi / TiO 2 Preparation of nanotube electrodes: the prepared TiO 2 The nanotube / Ti was electroplated as the cathode, and the volume of the plating solution was 50 mL. The composition of the plating solution:
[0011] NiSO 4 ·6H 2 O 250 g / L
[0012] RuCl 3 1g / L
[0013] h 3 BO 3 20g / L
[0014] pH: 4...
Embodiment 2
[0020] (1) Pretreatment of titanium plate: Polish the titanium plate with metallographic sandpaper, ultrasonically degrease in acetone for 15 minutes, wash with methanol or ethanol, treat with 1 mol / L HF for 10 minutes, ultrasonically clean 3 times with twice distilled water, and dry .
[0021] (2) TiO 2 Preparation of nanotube / Ti: Anodize the treated titanium plate in electrolyte. Composition of electrolyte: 0.5%-1% HF, 1mol / L H 2 SO 4 . The electrolysis potential was 20 V, and the electrolysis time was 120 minutes. After electrolysis, wash with deionized water, dry, and roast in a muffle furnace at 500-600 ° C for 3 hours to obtain TiO 2 Nanotube / Ti.
[0022] (3) RuNi / TiO 2 Preparation of nanotube electrodes: the prepared TiO 2 The nanotube / Ti was electroplated as the cathode, and the volume of the plating solution was 50 mL. The composition of the plating solution:
[0023] NiSO 4 ·6H 2 O 250 g / L
[0024] RuCl 3 1g / L
[0025] h 3 BO 3 20g / L
[0026] pH: ...
Embodiment 3
[0032] (1) Pretreatment of titanium plate: Polish the titanium plate with metallographic sandpaper, ultrasonically degrease in acetone for 15 minutes, wash with methanol or ethanol, treat with 1 mol / L HF for 10 minutes, ultrasonically clean 3 times with twice distilled water, and dry .
[0033] (2) TiO 2 Preparation of nanotube / Ti: Anodize the treated titanium plate in electrolyte. Composition of electrolyte: 0.5%-1% HF, 1mol / L H 2 SO 4 . The electrolysis potential was 20 V, and the electrolysis time was 60 minutes. After electrolysis, wash with deionized water, dry, and roast in a muffle furnace at 500-600 ° C for 3 hours to obtain TiO 2 Nanotube / Ti.
[0034] (3) RuNi / TiO 2 Preparation of nanotube electrodes: the prepared TiO 2 The nanotube / Ti was electroplated as the cathode, and the volume of the plating solution was 50 mL. The composition of the plating solution:
[0035] NiSO 4 ·6H 2 O 250 g / L
[0036] RuCl 3 1g / L
[0037] h 3 BO 3 20g / L
[0038] pH: 4...
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