US-South Africa Collaborative Research on Supported Gold Complexes and Nanoparticles: Synthesis, Characterization, and Catalysis

美国-南非关于负载型金络合物和纳米粒子的合作研究：合成、表征和催化

• 批准号: 0121619
• 负责人: Harold Kung
• 金额: $ 81万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0121619&HistoricalAwards=false
• 关键词: US; South; Africa; Collaborative; Research

AbstractProposal Title: US-South Africa Collaborative Research on Supported Gold Complexes and Nanoparticles: Synthesis, Characterization, and CatalysisProposal Number: CTS-0121619Principal Investigator: Harold KungInstitution: Northwestern UniversityThe objective of this proposal is to develop a collaborative effort with investigators from South Africa to study several model reactions on gold nanoparticles. This research area was identified as a prime candidate for the joint investigation at the US-South Africa Workshop on Heterogeneous Catalysis held in Pretoria in June, 2000. The focus of the work is to elucidate the nature of the active sites and the effects of modifiers on these sites. A combination of organogold complexes and gold salts will be used to prepare catalysts containing clusters of controlled distributions of metallic gold atoms and gold ions. The performance of these catalysts in CO oxidation, propene oxidation, and acetylene hydrogenation will be tested and compared with results derived from a model. In-situ methods used to probe active sites include atomic-resolution microscopy, Mossbauer spectroscopy, and synchrotron radiation techniques. To foster collaboration among the seven investigators, the US faculty will invite several South African graduate students to spend one to two years in their laboratories, and US students will visit South Africa to perform research. The results of the research are expected to advance an understanding of the mechanisms of gold catalysis and to further opportunities for new applications of gold in industrial catalysis.

摘要提案标题：US-South Africa Collaborative Research on Supported Gold Complexes and Nanoparticles：Synthesis，Characterization，and CatalysisProposal Number：CTS-0121619首席研究员：Harold Kung机构：西北大学本提案的目的是与南非的研究人员合作研究金纳米颗粒上的几种模型反应。 2000年6月在比勒陀利亚举行的美国-南非多相催化研讨会上，该研究领域被确定为联合调查的主要候选领域。 工作的重点是阐明活性位点的性质和改性剂对这些位点的影响。 有机金络合物和金盐的组合将用于制备含有金属金原子和金离子的受控分布的簇的催化剂。 将测试这些催化剂在CO氧化、丙烯氧化和乙炔加氢中的性能，并与来自模型的结果进行比较。 用于探测活性位点的原位方法包括原子分辨率显微镜、穆斯堡尔谱和同步辐射技术。 为了促进七名研究人员之间的合作，美国教师将邀请几名南非研究生在他们的实验室度过一到两年，美国学生将访问南非进行研究。 研究结果有望促进对金催化机制的理解，并为金在工业催化中的新应用提供更多机会。