Synthesis and Catalytic Properties of Heterobimetallic Clusters

异双金属簇合物的合成及催化性能

• 批准号: 8619864
• 负责人: M. David Curtis
• 金额: $ 25.35万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-04-15 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8619864&HistoricalAwards=false
• 关键词: Synthesis; Catalytic; Properties; Heterobimetallic; Clusters

This grant in the Inorganic Chemistry Program will support continued work on the synthesis of heterobimetallic compounds which consist of a main group heteroatom, e.g., sulfur, and one or more metals selected from the sets, (molybdenum or tungsten) and (iron, cobalt, or nickel) tightly bonded together in a cluster. The chemical reactions of the clusters with molecules of interst in catalysis, e.g., CO, hydrogen, alkynes, thiophene, etc., will be determined, as will the reactions of the clusters with the surface metal oxide supports. It has been found that these new clusters show interesting selectivities in the catalysis of CO hydrogenation and hydrodesulfurization when supported on the surface of metal oxides. It is proposed to determine the nature of the ensembles present on the oxide surfaces and elucidate their mode of catalytic action. The compounds which will be synthesized and studied show promose as selective and efficient catalysts for a variety of important chemical processes, such as the reaction of carbon monoxide with hydrogen. Some of these compounds decompose upon heating to form highly reactive small clusters of metal atoms which may also be useful as catalysts.

无机化学计划的这笔赠款将继续支持 合成杂环化合物的工作， 主族杂原子，例如，硫和一种或多种选自 从组中，（钼或钨）和（铁、钴或镍） 紧密地结合在一起 的化学反应 具有在催化中感兴趣的分子的簇，例如，CO，氢， 炔、噻吩等，将被确定，因为将反应的 簇与表面金属氧化物载体。 已经发现 这些新的团簇在催化反应中表现出有趣的选择性， 的CO加氢和加氢脱硫，当负载在 金属氧化物的表面。 建议确定 系综存在于氧化物表面，并阐明其模式， 催化作用 所合成和研究的化合物具有很好的生物活性， 选择性和有效的催化剂，用于各种重要的化学品 过程，如一氧化碳与氢气的反应。 一些 这些化合物在加热时分解， 也可用作催化剂的金属原子簇。