Structure and Chemistry of Alloy and Oxide Films at Bimetallic Pt Surfaces

双金属 Pt 表面合金和氧化膜的结构和化学

• 批准号: 1012766
• 负责人: Bruce Koel
• 金额: $ 48.5万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2011-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1012766&HistoricalAwards=false
• 关键词: Structure; Chemistry; Alloy; Oxide; Films

Professor Bruce E. Koel of Lehigh University is supported by the Chemical Catalysis Program in the Division of Chemistry to prepare bimetallic germanium and tin alloys on platinum surfaces, such as Sn/Pt(111) and Ge/Pt(111), and to form oxide films on these alloys. A sophisticated suite of surface analytical spectroscopy and microscopy techniques will be employed to characterize the alloys with atomic scale resolution and provide information on their structure, composition, and catalytic properties. Structure-property relationships of these systems, required for their development as new catalytic materials, will be established. The majority of metal-based heterogeneous catalysts are bimetallic or multimetallic systems. The proposed research will lead to a better understanding of how the structure and composition of bimetallic Pt alloy surfaces, and oxide-alloy interfaces affect the chemistry and catalysis of these materials. The results will inform the development of new catalysts with higher selectivity and the rational design of nanoscale materials with improved functionality. Graduate and undergraduate students and postdoctoral associates involved in this research will receive excellent training in chemical catalysis and surface chemistry.

布鲁斯教授E. Lehigh大学的Koel得到化学系化学催化计划的支持，在铂表面制备锗和锡的合金，如Sn/Pt（111）和Ge/Pt（111），并在这些合金上形成氧化膜。 一套复杂的表面分析光谱和显微镜技术将用于表征合金的原子尺度分辨率，并提供其结构，组成和催化性能的信息。 将建立这些系统的结构-性能关系，作为新的催化材料开发所需的。 大多数金属基多相催化剂是双金属或多金属体系。 拟议的研究将导致更好地了解如何的结构和组成的铂合金表面，氧化物合金界面影响这些材料的化学和催化。 研究结果将为开发具有更高选择性的新型催化剂和合理设计具有改进功能的纳米材料提供信息。 参与这项研究的研究生和本科生以及博士后助理将接受化学催化和表面化学方面的优秀培训。