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Platinum- and platinum alloy-coated palladium and palladium alloy particles and uses thereof

机译:涂覆铂和铂合金的钯和钯合金颗粒及其用途

摘要

The present invention relates to particle and nanoparticle composites useful as oxygen-reduction electrocatalysts. The particle composites are composed of a palladium or palladium-alloy particle or nanoparticle substrate coated with an atomic submonolayer, monolayer, bilayer, or trilayer of zerovalent platinum atoms. The invention also relates to a catalyst and a fuel cell containing the particle or nanoparticle composites of the invention. The invention additionally includes methods for oxygen reduction and production of electrical energy by using the particle and nanoparticle composites of the invention.
机译:本发明涉及用作氧还原电催化剂的颗粒和纳米颗粒复合材料。颗粒复合物由涂覆有零价铂原子的原子亚单层,单层,双层或三层的钯或钯合金颗粒或纳米颗粒基质组成。本发明还涉及包含本发明的颗粒或纳米颗粒复合材料的催化剂和燃料电池。本发明还包括通过使用本发明的颗粒和纳米颗粒复合材料减少氧气和产生电能的方法。

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