Surface and materials electrochemistry: adsorption, reduction, oxidation, and corrosion phenomena

能力和方法。我提出的实验和理论研究的前手性/手性有机分子的吸附在非手性/手性Pt（hkl）电极，其电催化氢化（ECH）的机制和动力学。我将进行T依赖性研究，并将确定氢（H），阴离子（AN）和有机分子（ORG）的表面覆盖率。我将确定H和ORG吸附的热力学状态函数。ECH的产品，它们的产量，和对映体过量将使用气相色谱，核磁共振，和圆二色性检查。我将研究Ag和Cu在Pt（hkl）、Au（hkl）和Rh（hkl）电极上的欠电位沉积（UPD）。Ag和Cu的表面覆盖率将通过电化学技术的应用来检查。我将进行依赖于T的循环伏安法（CV）的研究，并进行理论数据分析，以确定基板吸附键能。分析了电化学界面对金属界面结合的影响。本文将研究钛钼合金（TMA）和镍钛合金（NiTi）表面彩色钝化层在模拟体液中的生物腐蚀性和生物相容性。我也将研究吸附模型蛋白质对这些材料使用补充的物理和分析技术。这项研究的结果将提供电化学反应的分子水平的理解，并将阐明界面热力学。它将解释前手性/手性有机分子在非手性/手性表面上的吸附与其相互几何形状和尺寸的关系。它将解释通过电化学技术制备的纳米层中的金属-金属键合，以及它们在电化学条件下与各种基材的粘合。对TMA和NiTi表面钝化层的研究将有助于制备生物相容性更好、在模拟体液中腐蚀性更低的新材料。跨学科的研究将培养HQP，将进入加拿大就业市场。

OBJECTIVES AND APPROACH. I propose experimental and theoretical studies on the adsorption of prochiral/chiral organic molecules on achiral/chiral Pt(hkl) electrodes, and the mechanism and kinetics of their electrocatalytic hydrogenation (ECH). I will perform T-dependent studies and will determine the surface coverage of hydrogen (H), anions (AN), and organic molecules (ORG). I will determine thermodynamic state functions for H and ORG adsorption. The products of ECH, their yields, and enantiomeric excesses will be examined using vapor-phase chromatography, nuclear magnetic resonance, and circular dichromism. I will investigate the under-potential deposition (UPD) of Ag and Cu on Pt(hkl), Au(hkl) and Rh(hkl) electrodes. The surface coverage of Ag and Cu will be examined by application of electrochemical techniques. I will conduct T-dependent cyclic-voltammetry (CV) studies and perform theoretical data analysis to determine the substrate-adsorbate bond energy. I will analyze the influence of electrochemical interface on the interfacial bonding of metals. I will investigate the biocorrosion and biocompatibility of colored passive layers on titanium-molybdenum alloy (TMA) and nickel-titanium alloy (NiTi) in simulated body fluids. I will also study the adsorption of model proteins on these materials using complementary physical and analytical techniques.SIGNIFICANCE. The outcome of this research will provide molecular-level understanding of electrochemical reactions and will shed light on interfacial thermodynamics. It will explain the adsorption of prochiral/chiral organic molecules on achiral/chiral surfaces in relation to their mutual geometry and size. It will explain the metal-metal bonding in nanometric layers prepared by electrochemical techniques and their adhesion to various substrates under electrochemical conditions. The study on passive layers on TMA and NiTi will facilitate the preparation of new materials of enhanced biocompatibility and reduced biocorrosion in simulated body fluids. The cross-disciplinary research will train HQP that will enter the Canadian job market.