Preparation method for optimizing performance of porous dendritic Pt-Ru-Ni alloy nanoparticles

A technology of alloy nanoparticles and alloy nanoparticles, which is applied in the field of preparing porous dendritic Pt-Ru-Ni alloy nanoparticles by solvothermal synthesis, can solve the problems of easy poisoning and expensive Pt catalyst, and achieve high specific surface area, excellent Effects of durability and CO poisoning resistance
CN110534756AInactive Publication Date: 2019-12-03UNIV OF JINAN
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF JINAN
Publication Date
2019-12-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method for optimizing performance of porous dendritic Pt-Ru-Ni alloy nanoparticles. Platinum acetylacetone, ruthenium acetylacetone and nickel acetylacetone are used as metal precursors, oleyamine is used as a solvent, oleyamine and oleic acid are used as surfactants, oleyamine and formaldehyde are used as reducing agents, and the porous dendritic Pt-Ru-Ni alloy nanoparticles with higher selectivity are synthesized through assistance of an oven. The method is easy to operate and has high repeatability and enriches the design idea of the Pt-based alloy nanoparticle catalyst. The obtained porous dendritic Pt-Ru-Ni alloy nanoparticles have high specific surface area and large pore capacity, improve and increase active sites and can fully utilize the active sites, show excellent durability and CO poisoning resistance and have wide application prospect.
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Description

technical field

[0001] The invention belongs to the technical field of functional nanometer materials. Specifically, the present invention uses a solvothermal synthesis method to prepare porous dendritic Pt-Ru-Ni alloy nanoparticles. Background technique

[0002] In the past few decades, environmental problems have become increasingly prominent and resources have been gradually depleted, and the demand for renewable fuel cells has become imminent. Methanol fuel cells are the most attractive power sources due to their renewable, high energy conversion efficiency, and low pollutant emissions. High-performance, low-cost catalysts are considered to be the key to restricting the wide application of direct methanol fuel cells. So far, the most promising anode catalyst for methanol oxidation is considered to be Pt. However, the high cost of Pt and the fact that commercial Pt-based catalysts are easily poisoned by CO produced during methanol oxidation greatly limit its applicatio...

Claims

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