A kind of preparation method of carbon-loaded pt-mo alloy catalyst for magnesium-air battery
An alloy catalyst, air battery technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of low degree of product alloying, high cost, and difficult to achieve Carbon loading and nanometerization, etc., to achieve uniform particle distribution, good alloying degree, and small particle size of metal particles
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Embodiment 1
[0033] The synthesis of embodiment 1 Pt-Mo / C (3:1) catalyst
[0034] 1. With carbon gel, chloroplatinic acid and sodium molybdate as raw materials, carbon gel, chloroplatinic acid aqueous solution and sodium molybdate aqueous solution are prepared according to the ratio of carbon content 80% and molar atomic ratio of Pt:Mo=3:1 Add it into deionized water, and after ultrasonic vibration for 20 min, move the reaction vessel into a glove box filled with inert gas.
[0035] 2. Weigh the sodium borohydride solid in a glove box and dissolve it in water, slowly add the sodium borohydride aqueous solution to the suspension containing carbon, Pt, and Mo, and magnetically stir the above suspension in an inert atmosphere for 4 hours.
[0036] 3. The suspension after the reaction was removed from the glove box, and the supernatant liquid was poured out. After washing several times with deionized water, the gray-black solid obtained was vacuum-dried at 40° C. to obtain a black catalyst pow...
Embodiment 2
[0039] The synthesis of embodiment 2Pt-Mo / C (1:1) catalyst:
[0040] 1. With carbon gel, chloroplatinic acid and sodium molybdate as raw materials, carbon gel, chloroplatinic acid aqueous solution and sodium molybdate aqueous solution are prepared according to the ratio of carbon content 80% and molar atomic ratio of Pt:Mo=1:1 Added into deionized water, ultrasonically oscillated for 20 min, and then moved the reaction vessel into the glove box.
[0041] 2. Weigh the sodium borohydride solid in the glove box and dissolve it in water, and slowly add the sodium borohydride aqueous solution to the suspension containing carbon, Pt, and Mo, and magnetically stir the above suspension in an inert atmosphere for 4 hours .
[0042] 3. The suspension after the reaction was removed from the glove box, and the supernatant liquid was poured out. After washing several times with deionized water, the gray-black solid obtained was vacuum-dried at 40° C. to obtain a black catalyst powder.
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