Atomic-scale Surface Investigations of Metal Oxide Single Crystals, Thin Films, and Nanostructures

金属氧化物单晶、薄膜和纳米结构的原子尺度表面研究

• 批准号: 0715576
• 负责人: Ulrike Diebold
• 金额: $ 48.8万
• 依托单位: Tulane University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0715576&HistoricalAwards=false
• 关键词: Atomic; scale; Surface; Investigations; Metal

With the support of the Analytical and Surface Chemistry Program, Professor Diebold and her coworkers in the Department of Physics at Tulane University are studying the surface chemistry of well characterized oxide surfaces. Using scanning tunneling microscopy, photoemission spectroscopy, and adsorption studies, the geometric and electronic structure of SnO2, In2O3, and ZnO surfaces are being examined. Focus of the work is on the structural and chemical properties of oxide nanobelts of these materials formed under certain conditions. Both synthesis and characterization of these nanobelt materials is carried out. Adsorption and reaction of small molecules on these surfaces is also examined. The surface properties of nanoscale oxide materials are the focus of this research project supported by the Analytical and Surface Chemistry Program. Using scanning probe microscopy and photoemission methods, Professor Diebold and her collaborators are examining the detailed geometric and electronic structure of tin, indium, and zinc oxide surfaces, particularly in morphologies exhibiting nanobelt structures. The adsorption and reaction of small molecules on these surfaces is also examined. Information from these studies will be of use in the understanding of catalytic processes and nanomaterials synthesis methods.

在分析和表面化学项目的支持下，杜兰大学物理系的Diebold教授和她的同事正在研究表征良好的氧化物表面的表面化学。利用扫描隧道显微镜、光电发射光谱和吸附研究，研究了SnO2、In2O3和ZnO表面的几何和电子结构。重点研究了这些材料在一定条件下形成的氧化纳米带的结构和化学性质。对这些纳米带材料进行了合成和表征。还研究了小分子在这些表面上的吸附和反应。纳米级氧化物材料的表面性质是本研究项目的重点，由分析和表面化学计划支持。使用扫描探针显微镜和光电发射方法，Diebold教授和她的合作者正在检查锡、铟和氧化锌表面的详细几何和电子结构，特别是在形貌上表现出纳米带结构。还研究了小分子在这些表面上的吸附和反应。来自这些研究的信息将用于理解催化过程和纳米材料合成方法。