Pitto-Barry Anaïs, Geraki Kalotina, Horbury Michael D, Stavros Vasilios G, Mosselmans J Frederick W, Walton Richard I, Sadler Peter J, Barry Nicolas P E
Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
Chem Commun (Camb). 2017 Nov 30;53(96):12898-12901. doi: 10.1039/c7cc07133g.
Osmium nanocrystals can be fabricated by electron (3-50 nm, formed by atom migration), 785-815 nm laser (20-50 nm, in micelle islands), and microwave (ca. 1 nm in arrays, >100 mg scale) irradiation of a polymer-encapsulated Os carborane; microfocus X-ray absorption studies at the Os L-edge show differences between the three preparation methods, suggesting that the electron-beam irradiated materials have a significant support interaction and/or surface oxidation, while the laser and microwave samples are more like metallic osmium.
通过对聚合物包裹的锇碳硼烷进行电子束（3 - 50纳米，由原子迁移形成）、785 - 815纳米激光（20 - 50纳米，在胶束岛中）和微波（阵列中约1纳米，规模大于100毫克）辐照，可以制备锇纳米晶体；在锇L边进行的微聚焦X射线吸收研究表明，这三种制备方法存在差异，这表明电子束辐照的材料具有显著的载体相互作用和/或表面氧化，而激光和微波样品更类似于金属锇。
