Electronic structure of transition metal oxide compounds in aqueous solution from photoelectron spectroscopy (A06)

光电子能谱测定水溶液中过渡金属氧化物的电子结构（A06）

• 批准号: 248422057
• 金额: --
• 依托单位: Fritz-Haber-Institut der Max-Planck-Gesellschaft (FHI)
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/248422057?language=en
• 关键词: Electronic; structure; transition; metal; oxide

The electronic structure of Fe and Al oxides in aqueous solutions is studied by soft-X-ray photoemission from a liquid microjet. Our two main goals are (1) to determine the early-stage nucleation processes that lead to the formation of Al oxyhydroxide particles in Al3+ / NaOH aqueous solutions, and (2) to identify the molecular species that exist at the surface of Fe3O4 and Al2O3 nanoparticles, respectively, in aqueous solutions. In addition to ground-state photoelectron spectroscopy from valence and core levels we apply resonant photoelectron spectroscopy at the oxygen 1s and the Al 1s / Fe 2p resonances to increase the detection sensitivity of the molecular precursors and of molecules adsorbed at the nanoparticle surface.

用液体微射流软X射线光电子能谱研究了Fe和Al氧化物在水溶液中的电子结构。我们的两个主要目标是(1)确定导致Al~(3+)/NaOH水溶液中氢氧化铝颗粒形成的早期成核过程，以及(2)确定水溶液中分别存在于Fe_3O_4和Al_2O_3纳米颗粒表面的分子物种。除了从价能级和核能级的基态光电子能谱外，我们还在氧1s和Al1s/Fe2p共振处应用共振光电子能谱来提高分子前驱体和吸附在纳米颗粒表面的分子的探测灵敏度。