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

建议标题：美国-南非关于负载金配合物和纳米粒子的合作研究：合成、表征和催化建议编号：CTS-0121619主要研究人员：哈罗德·孔格研究所：西北大学这项建议的目的是与来自南非的研究人员合作，研究金纳米粒子上的几个模型反应。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，这一研究领域被确定为联合调查的主要候选者。这项工作的重点是阐明活性部位的性质以及修饰剂对这些部位的影响。有机金络合物和金盐的组合将被用来制备包含金属金原子和金离子的受控分布的簇合物的催化剂。将测试这些催化剂在一氧化碳氧化、丙烯氧化和乙炔加氢反应中的性能，并与模型得出的结果进行比较。用于探测活性中心的原位方法包括原子分辨率显微镜、穆斯堡尔谱学和同步辐射技术。为了促进七名研究人员之间的合作，美国教职员工将邀请几名南非研究生在他们的实验室呆一到两年，美国学生将访问南非进行研究。这一研究结果有望促进对金催化机理的理解，并为金在工业催化中的新应用提供新的机会。

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.