Ptru catalyst and its preparation method and application
A technology of catalysts and base materials, applied in the field of materials, can solve the problems of complex synthesis methods, inability to effectively play the role of electrocatalysis, and large dosage
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Embodiment 1
[0030] (1) First soak the carbon cloth in 0.001mol / L ruthenium chloride aqueous solution for 1 min, load the ruthenium chloride on the carbon cloth, and then dry it at 60°C.
[0031] (2) Arrange the carbon obtained in step (1) in a muffle furnace for calcination, raise the temperature at 5°C / min to 200°C for 5min in air, and the calcined product is RuO 2 Precursor.
[0032] (3) Place the precursor obtained in step (2) in a standard three-electrode electrolytic cell, and the electrolyte is 0.01mol / L sulfuric acid solution. The RuO obtained by Pt mesh, mercury mercurous sulfate electrode and step (2) 2 The precursors were used as the counter electrode, reference electrode and working electrode respectively, and the RuO 2 The PtRu catalyst was obtained by in-situ electrodeposition of Pt on the precursor, and the mass ratio of Pt:Ru was 0.01:1 by controlling the deposition time.
[0033] figure 1 for RuO 2 From the transmission electron microscope image, it can be seen that t...
Embodiment 2
[0035] (1) First soak the foamed titanium in 5mol / L ruthenium chloride aqueous solution for 120min, load the ruthenium chloride on the foamed titanium, and then dry it at 70°C.
[0036] (2) Put the titanium foam obtained in step (1) into a muffle furnace for calcination, heat up to 600 ℃ at 5°C / min and calcine in air for 120min, and the calcined product is RuO 2 Precursor.
[0037] (3) RuO obtained in step (2) 2 The precursor is placed in a standard three-electrode electrolytic cell, and the electrolyte is a 5mol / L sulfuric acid solution. The RuO obtained by Pt mesh, mercury mercurous sulfate electrode and step (2) 2 The precursors were used as the counter electrode, reference electrode and working electrode respectively, and the RuO 2 The PtRu catalyst was obtained by in-situ electrodeposition of Pt on the precursor, and the mass ratio of Pt:Ru was 1:1 by controlling the deposition time.
Embodiment 3
[0039] (1) First soak the nickel foam in 0.1mol / L ruthenium iodide aqueous solution for 60min, load the ruthenium iodide on the nickel foam, and then dry it at 80°C.
[0040] (2) Put the nickel foam obtained in step (1) into a muffle furnace for calcination, heat up to 400 ℃ at 5°C / min and calcine in air for 40min, and the calcined product is RuO 2 Precursor.
[0041] (3) RuO obtained in step (2) 2 The precursor was placed in a standard three-electrode electrolytic cell, and the electrolyte was 1mol / L sulfuric acid solution. The RuO obtained by Pt mesh, mercury mercurous sulfate electrode and step (2) 2 The precursors were used as the counter electrode, reference electrode and working electrode respectively, and the RuO 2 The PtRu catalyst was obtained by in-situ electrodeposition of Pt on the precursor, and the mass ratio of Pt:Ru was 0.1:1 by controlling the deposition time.
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