Method of preparing shape-controlled platinum based alloys
AssigneeNissan North America, Inc.
InventorsYing Liu, Nilesh Dale
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Abstract
A method of preparing shape-controlled alloy particles includes dissolving a solvent in a surfactant selected to inhibit particle growth; adding a noble metal precursor and a transition metal precursor to form a mixture; irradiating the mixture with a microwave under reflux for about thirty minutes or less at an irradiation temperature of between 185° C. and 195° C.; cooling the mixture; and drying the mixture at a temperature of between 55° C. and 65° C. to obtain shape-controlled alloy particles having a uniform shape, the shape dependent upon the surfactant used.
Claims15
A method of preparing shape-controlled alloy particles comprising:
- dissolving a solvent in a surfactant selected to inhibit particle growth;
- adding a noble metal precursor and a transition metal precursor to form a mixture;
- irradiating the mixture with a microwave under reflux for about thirty minutes or less at an irradiation temperature of between 185° C. and 195° C.;
- cooling the mixture;
- and
- drying the mixture at a temperature of between 55° C. and 65° C. to obtain shape-controlled alloy particles having a uniform shape, the shape dependent upon the surfactant used.
A method of preparing shape-controlled platinum alloy particles comprising:
- thoroughly dissolving benzyl alcohol in a surfactant selected to inhibit particle growth;
- adding a platinum precursor and a nickel precursor to form a mixture;
- irradiating the mixture with a microwave under reflux for about thirty minutes or less at an irradiation temperature of between 185° C. and 195° C.;
- cooling the mixture;
- and
- drying the mixture at a temperature of between 55° C. and 65° C. to obtain shape-controlled platinum alloy particles.
Dependencies are inferred from the claim text.