Manipulating Surface Chemistry Via the Ferroelectric Effect

耶鲁大学的Altman教授和他的同事们在分析和表面化学计划的支持下，正在研究铁电氧化物的表面化学。 特别是，他们正在研究极化方向对表面化学的影响，使用一系列电子光谱和扫描探针显微镜技术。 酸-碱化学LiNbO 3和一氧化碳BaTiO 3支持的金纳米粒子或RuO 2外延层正在审查。 从这些研究中获得的基本信息提供了一个基础的外部可控催化剂系统的设计。催化表面的反应性或选择性的外部控制将对催化反应器系统的设计具有相当大的影响。 极化方向对铁电氧化物表面随后的化学性质的影响是建立这种控制的可能途径。 在分析和表面化学项目的支持下，Altman教授和他在耶鲁大学的同事们正在研究这些有趣的效应，使用表面电子光谱和扫描探针显微镜方法。

AbstractCHE-0413050Altman/YaleProfessor Altman and his colleagues at Yale University, with the support of the Analytical and Surface Chemistry Program, are studying the surface chemistry of ferroelectric oxides. In particular, they are investigating the effect of poling direction on the surface chemistry, using an array of electron spectroscopic and scanned probe microscopy techniques. Acid-base chemistry on LiNbO3 and CO oxidation on BaTiO3 supported gold nanoparticles or RuO2 epitaxial layers are being examined. The fundamental information obtained from these studies provides a basis for the design of externally controllable catalyst systems. External control of the reactivity or selectivity of a catalytic surface would have considerable impact on the design of catalytic reactor systems. The effect of poling direction on the subsequent chemistry of ferroelectric oxide surfaces is a possible route to establishing this sort of control. With the support of the Analytical and Surface Chemistry Program, Professor Altman and his colleagues at Yale are examining these interesting effects, using surface electron spectroscopy and scanning probe microscopy methods.