The Contribution of Delocalized Electronic Excitations to Chemisorption on Transition-Metal Oxides: Model Studies Using Cr-Doped V2O3

离域电子激发对过渡金属氧化物化学吸附的贡献：使用 Cr 掺杂 V2O3 的模型研究

• 批准号: 9610140
• 负责人: Victor Henrich
• 金额: $ 28.4万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-15 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9610140&HistoricalAwards=false
• 关键词: Contribution; Delocalized; Electronic; Excitations; Chemisorption

ABSTRACT CTS-9610140 Professor Victor E. Henrich of Yale University is being funded by the Kinetics and Catalysis-CRP-CTS and the Solid State Chemistry-DMR programs. He will investigate the contribution of delocalized electronic states to chemisorption on transition-metal-doped oxides, taking as model Cr-doped V203 single crystal. The electronic structure of the model catalytic oxide will be varied independently from the structure over a wide range of doping with Cr. The surface electronic structure will also be controlled by taking advantage of the hysteresis of the metal-insulator transition with temperature. The system will be studied with UHV techniques (UPS, XPS, LEEDS, HREELS, Auger, inverse photoelectric techniques) and by chemisorption and TPD of probe molecules such as CO, H20, O2, and NO. This work is of relevance to fundamental chemisorption and catalysis, surface science, and materials science.

摘要CTS-9610140 维克托教授E.耶鲁大学的Henrich正在接受动力学和催化-CRP-CTS和固态化学-DMR项目的资助。他将研究离域电子态对过渡金属掺杂氧化物化学吸附的贡献，以Cr掺杂V203单晶为模型。 模型催化氧化物的电子结构将在宽范围的Cr掺杂上独立于结构而变化。 表面电子结构也将通过利用金属-绝缘体转变随温度的滞后来控制。 该系统将研究与UHV技术（UPS，XPS，利兹，HREELS，俄歇，逆光电技术）和化学吸附和TPD的探针分子，如CO，H2O，O2，NO。这项工作是相关的基础化学吸附和催化，表面科学和材料科学。