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    • 99. 发明申请
    • Platinum Adlayered Ruthenium Nanoparticles, Method for Preparing, and Uses Thereof
    • 铂金钌纳米粒子,其制备方法及用途
    • US20110256469A1
    • 2011-10-20
    • US13081809
    • 2011-04-07
    • YuYe TongBingchen Du
    • YuYe TongBingchen Du
    • H01M4/92B01J23/46B01J37/16B01J37/02B01J37/08H01M8/22B01J37/34B82Y30/00
    • H01M8/1011B82Y30/00H01M4/8657H01M4/92H01M4/921H01M4/926Y02E60/523Y02P70/56
    • A superior, industrially scalable one-pot ethylene glycol-based wet chemistry method to prepare platinum-adlayered ruthenium nanoparticles has been developed that offers an exquisite control of the platinum packing density of the adlayers and effectively prevents sintering of the nanoparticles during the deposition process. The wet chemistry based method for the controlled deposition of submonolayer platinum is advantageous in terms of processing and maximizing the use of platinum and can, in principle, be scaled up straightforwardly to an industrial level. The reactivity of the Pt(31)-Ru sample was about 150% higher than that of the industrial benchmark PtRu (1:1) alloy sample but with 3.5 times less platinum loading. Using the Pt(31)-Ru nanoparticles would lower the electrode material cost compared to using the industrial benchmark alloy nanoparticles for direct methanol fuel cell applications.
    • 已经开发了一种优异的工业可升级的一锅乙二醇基湿法化学方法来制备铂 - 钌钌纳米颗粒,其提供了对该层的铂填充密度的精细控制,并有效地防止了沉积过程中纳米颗粒的烧结。 用于亚单层铂的受控沉积的基于湿化学的方法在加工和使铂的使用方面是有利的,并且原则上可以直接扩大到工业级。 Pt(31)-Ru样品的反应性比工业基准PtRu(1:1)合金样品的反应性高约150%,但是铂负载的3.5倍。 与使用工业基准合金纳米颗粒直接甲醇燃料电池应用相比,使用Pt(31)-Ru纳米颗粒将降低电极材料成本。