Chemical Reactions of Environmental and Atmospheric Relevance on Carbonate Surfaces

Grassian教授和她在爱荷华大学化学系的同事们正在研究与大气和环境化学相关的碳酸盐、氧化物和粘土的表面化学。在分析和表面化学项目的支持下，他们正在研究二氧化碳与CaCO3和CaMg(CO3)2表面的相互作用。对单晶和颗粒基板都进行了研究。光谱学，显微镜和动力学实验相结合，以检查二氧化碳与这些表面的相互作用，并与大气中重要的微量分子，如N2O5， SO2，乙酸和甲酸。将获得关于大气化学过程和生物地球化学循环的重要资料，以及关于艺术品和结构材料中碳酸盐矿物环境退化的资料。二氧化碳与碳酸盐矿物表面的相互作用是这个由分析和表面化学计划支持的研究项目的重点。爱荷华大学的格拉西安教授和她的同事们正在使用光谱、显微镜和动力学探针来研究这种表面化学的细节，这与许多环境问题有关。

AbstractCHE-0503854Grassian/IowaProfessor Grassian and her colleagues in the Department of Chemistry at the University of Iowa are investigating the surface chemistry of carbonates, oxides and clays of relevance to atmospheric and environmental chemistry. With the support of the Analytical and Surface Chemistry Program, they are examining the interaction of carbon dioxide with CaCO3 and CaMg(CO3)2 surfaces. Both single crystal and particulate substrates are being examined. Spectroscopy, microscopy and kinetic experiments are combined to examine the interaction of CO2 with these surfaces and with important trace molecules in the atmosphere such as N2O5, SO2, and acetic and formic acids. Important information concerning atmospheric chemistry processes and biogeochemical cycles will be obtained, as well as information regarding the environmental degradation of carbonate minerals in artworks and structural materials. The interaction of carbon dioxide with carbonate mineral surfaces is the focus of this research project supported by the Analytical and Surface Chemistry Program. Professor Grassian and her colleagues at the University of Iowa are using spectroscopic, microscopic and kinetic probes to examine the details of this surface chemistry which has relevance to many questions of environmental importance.