【摘要】：正六方密堆積(hcp)和立方密堆積(fcc)是金屬晶體最常見的兩種堆積方式,對(duì)于貴金屬(金、銀、釕、銠、鈀、鋨、銥、鉑)晶體,除了釕和鋨是hcp堆積外,其它最穩(wěn)定的晶相均為fcc。而材料的不同晶相由于其不同的原子排列方式而具有迥異的物理化學(xué)性質(zhì),發(fā)掘材料新的晶相可以為探索高性能催化劑提供新的實(shí)踐途徑~1。目前,對(duì)于貴金屬及其合金納米材料晶相的調(diào)控主要采取高溫、高壓等比較苛刻的合成條件~2以及模板誘導(dǎo)的方
[Abstract]:(hcp) and (fcc) are the two most common stacking methods in metal crystals. For precious metal crystals (gold, silver, ruthenium, rhodium, palladium, osmium, iridium, platinum), except ruthenium and osmium are hcp stacking. The other most stable crystalline phases are all fcc. The different crystalline phases of the materials have different physicochemical properties because of their different atomic arrangement. Exploring the new crystalline phases of the materials can provide a new practical way to explore high performance catalysts ~ 1. At present, the crystal phase of noble metal and its alloy nanomaterials is mainly controlled by high temperature, high pressure and other harsh synthesis conditions ~ 2 and template-induced square.
【作者單位】： 北京大學(xué)化學(xué)與分子工程學(xué)院;
【分類號(hào)】：O643.36

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