CAREER: Educational and Research Opportunities in Environmental Engineering: Catalysis as a Tool for Solving Environmental Problems

职业：环境工程的教育和研究机会：催化作为解决环境问题的工具

• 批准号: 9702699
• 负责人: Fabio Ribeiro
• 金额: $ 30.48万
• 依托单位: Worcester Polytechnic Institute
• 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: 1997-06-01 至 2002-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9702699&HistoricalAwards=false
• 关键词: CAREER; Educational; Research; Opportunities; Environmental

ABSTRACT Proposal Title: Educational and Research Opportunities in Environmental Engineering: Catalysis as a Tool for Solving Environmental Problems. Proposal Number: CTS-9702699 Principal Investigator: Fabio H. Ribeiro Institution: Worcester Polytechnic Institute This study will be focused on the hydrodechlorination of chlorofluorocarbon compounds on Pd single crystal and Pd supported on carbon and other supports. Better understanding of these catalytic reactions will impact environmental technologies of remediation as well as pollution prevention. The scientific issues are the identification of mechanisms of dechlorination and of Pd deactivation, and of the structural effects on catalytic activity and selectivity. Among the possible structural phenomena, the PI will address organic compound structure effects, metal structure sensitivity, support effects, and crystallite size effects. The techniques to be used include surface structure and composition analysis under UHV conditions (LEED, AES, XPS, TPD), in-situ ultraviolet Raman in a high-temperature (500 C) and high-pressure reactor (1.5 atm), and isotopic exchange reaction in a separate batch reactor. The restructuring of Pd on supports other than C will be studied while addressing in detail the role of the support in the reaction. The educational plan includes the strengthening of an environmental orientation for WPI chemical engineering students. Projects at the junior through graduate levels will involve students studying and solving real problems prompted by existing environmental agency regulations or defined in accordance with industrial collaborators.

摘要 提案标题：环境工程的教育和研究机会：催化作为解决环境问题的工具。 提案编号：CTS-9702699 首席研究员：Fabio H. Ribeiro 机构：伍斯特理工学院 这项研究将重点关注钯单晶上的氯氟碳化合物以及碳和其他载体上负载的钯的加氢脱氯。更好地了解这些催化反应将影响环境修复技术以及污染预防。科学问题是脱氯和钯失活机制的确定，以及对催化活性和选择性的结构影响。在可能的结构现象中，PI 将解决有机化合物结构效应、金属结构敏感性、支撑效应和微晶尺寸效应。所使用的技术包括 UHV 条件下的表面结构和成分分析（LEED、AES、XPS、TPD）、高温（500 C）和高压反应器（1.5 atm）中的原位紫外拉曼分析以及同位素分析交换反应在单独的间歇反应器中进行。将研究 Pd 在 C 之外的载体上的重组，同时详细讨论载体在反应中的作用。该教育计划包括加强 WPI 化学工程专业学生的环境导向。初级到研究生级别的项目将让学生学习和解决现有环境机构法规提出的或根据工业合作者定义的实际问题。