亞洲知識產權資訊網為知識產權業界提供一個一站式網上交易平台，協助業界發掘知識產權貿易商機，並與環球知識產權業界建立聯繫。無論你是知識產權擁有者正在出售您的知識產權，或是製造商需要購買技術以提高操作效能，又或是知識產權配套服務供應商，你將會從本網站發掘到有用的知識產權貿易資訊。
返回搜索結果

Carbon-supported IrPdRu Hydrogen Oxidation/Evolution Catalysts

詳細技術說明
Novel carbon-supported IrPdRumetallic alloy nanoparticles were developed as active hydrogen oxidation andevolution catalysts for use in alkaline media.
*Abstract

Hydrogen oxidation/evolutionreaction (HOR/HER) are among the core processes for notable clean energytechnologies such as fuel cells and electrolyzers for hydrogen fuelproduction. However, the performance(i.e. efficiency, power density) of these applications are limited by thereaction kinetics of HOR and HER, necessitating active electrode catalystmaterials. Current benchmark catalystsfor HOR/HER, such as platinum (Pt) and iridium (Ir), are highly expensive intheir pure form due to their natural scarcity.

 

This invention identifies a unique series of lowercost ternary IrPdRu metallic alloys as a stable and active catalysts for HORand HER in alkaline media. Among thisseries, Ir3Ru7 and Ir3Pd1Ru6(shown in red and blue in the figure below) demonstrate greater catalyticactivities than pure Pt or Ir on carbon, as evidenced by the left shift in thecurrent-potential curve which is indicative of greater HOR activity. Moreover, the combination of Ir with Pd and/orRu not only enhances the activity but has the added benefit of reducing theoverall material cost compared to pure Ir or Pt.

 

Low temperature fuel cells are one of the principleapplications for this invention. Theadvent of high performance, but less expensive alkaline electrolyte materialshas opened opportunities for development of alkaline fuel cells (AFCs) that arecompetitive with proton-exchange membrane fuel cells (PEMFCs). Our alternative IrPdRu based catalyst systemshelps offset the lower catalytic activity of Pt and Ir under alkalineconditions.

 

PotentialApplications

· Alkaline fuel cells

· Hydrogen electrolyzers for fuel storage

 

Advantages

· More active for HOR than Pt and Ir catalysts

· Less expensive than Pt or Ir

 

Keywords: catalysts, fuel cells,alkaline fuel cells, hydrogen, hydrogen oxidation, hydrogen evolution, lowtemperature fuel cells, hydrogen electrolyzers, water-splitting, HOR, HER, AFCs
*Licensing
Carolyn A. Theodorecat42@cornell.edu607 254 4514
其他

Publications

· Hongsen et al. “IrPdCu/C as H2 Oxidation Catalystsfor Alkaline Fuel Cells”. J. Am. Chem. Soc. 2017, 139, 6807−6810DOI: 10.1021/jacs.7b02434
國家/地區
美國

欲了解更多信息，請點擊 這裡
移動設備