Amorphous strontium ruthenate film composite electrode, preparation method and application thereof
A composite electrode, strontium ruthenate technology, applied in electrodes, electrolysis process, electrolysis components and other directions, can solve the problems of crystalline strontium ruthenate film not easy to electrocatalyze reaction, easily corroded and peeled off during the reaction process, and less active sites, etc. Achieve the effect of promoting electrochemical reaction, facilitating large-scale production and high repeatability
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Embodiment 1
[0047] A preparation method for an amorphous strontium ruthenate thin film composite electrode, comprising the following steps:
[0048] (1) Preparation of strontium ruthenate target
[0049] Use ruthenium oxide and strontium oxide powder with a purity of 99.9% to fully mix and grind according to the molar ratio of ruthenium atoms and strontium atoms 1:1, put them into a mold with a radius and a height of 5 mm, press them into a columnar body, and sinter at a high temperature of 1200 ° C 11h, making a strontium ruthenate target;
[0050] (2) Substrate pretreatment
[0051] Polish the glassy carbon sheet with a size of 10mm×10mm smooth with alumina polishing powder with a diameter of 50nm, then ultrasonically clean the glassy carbon sheet with acetone, absolute ethanol and deionized water for 10min respectively, and blow dry with a nitrogen gun after ultrasonic cleaning stand-by;
[0052] (3) Preparation of composite electrodes
[0053] Place the processed glassy carbon she...
Embodiment 2
[0060] A preparation method for an amorphous strontium ruthenate thin film composite electrode, comprising the following steps:
[0061] (1) Preparation of strontium ruthenate target
[0062] Use ruthenium oxide and strontium oxide powder with a purity of 99.9% to fully mix and grind according to the molar ratio of ruthenium atoms and strontium atoms 1:1, put them into a mold with a radius and a height of 5mm, press them into a columnar body, and sinter at a high temperature of 1100°C 10h, make a strontium ruthenate target;
[0063] (2) Substrate pretreatment
[0064] Polish the glassy carbon sheet with a size of 10mm×10mm smooth with alumina polishing powder with a diameter of 20nm, then ultrasonically clean the glassy carbon sheet with acetone, absolute ethanol and deionized water for 15min respectively, and blow dry with a nitrogen gun after ultrasonic cleaning stand-by;
[0065] (3) Preparation of composite electrodes
[0066] Place the processed glassy carbon sheet an...
Embodiment 3
[0070] A preparation method for an amorphous strontium ruthenate thin film composite electrode, comprising the following steps:
[0071] (1) Preparation of strontium ruthenate target
[0072] Use ruthenium oxide and strontium oxide powders with a purity of 99.9% to fully mix and grind them according to the molar ratio of ruthenium atoms and strontium atoms 1:1, put them into a mold with a radius and height of 5mm, press them into a columnar body, and sinter at a high temperature of 1300°C 12h, make a strontium ruthenate target;
[0073] (2) Substrate pretreatment
[0074] Use alumina polishing powder with a diameter of 100nm to polish the glassy carbon sheet with a size of 10mm×10mm smooth, and then ultrasonically clean the glassy carbon sheet with acetone, absolute ethanol and deionized water for 20min respectively, and blow dry with a nitrogen gun after ultrasonic cleaning stand-by;
[0075] (3) Preparation of composite electrodes
[0076] Place the processed glassy carb...
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