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首页> 外文期刊>Advanced Materials >Core/shell Nanoparticles As Electrocatalysts For Fuel Cell Reactions
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Core/shell Nanoparticles As Electrocatalysts For Fuel Cell Reactions

机译：核/壳纳米粒子作为燃料电池反应的电催化剂

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摘要

The understanding of the atomic or molecular engineering of metal or oxide nanoparticles in the size range of 1-100 nm is important because such nanoparticles could exist in single-phase alloy, phase-segregation, or core/shell structures different from their bulk counterparts, which has profound influences on their catalytic properties. In contrast to many fundamental and practical aspects that are well-established for bulk materials, the ability to control these properties at the nanoscale dimension is challenging. Increasing examples of nanoscale materials have shown that these properties can be very different from their bulk counterparts, especially for catalysis where there could be unprecedented changes in terms of the support promotion effect or the bifunctional/multi-functional effects on the catalytic properties. Examples include nanosized gold on oxide support for CO oxidation and PtRu nanoparticles for methanol oxidation reaction.
机译：理解1-100 nm大小范围内的金属或氧化物纳米粒子的原子或分子工程非常重要，因为此类纳米粒子可能以单相合金，相偏析或核/壳结构形式存在，不同于它们的整体形式，对其催化性能有深远的影响。与散装材料已确立的许多基本和实际方面相比，在纳米尺度上控制这些特性的能力具有挑战性。越来越多的纳米级材料实例表明，这些性质可能与它们的本体性质有很大不同，特别是对于催化作用，在催化作用方面，载体促进作用或双功能/多功能作用可能发生前所未有的变化。实例包括用于CO氧化的氧化物载体上的纳米金和用于甲醇氧化反应的PtRu纳米粒子。

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