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Office Location(s): 3022 CC Little
Surface Geochemistry and Computational Mineralogy Group
Almost all environmentally relevant reactions in nature or in technical applications that involve minerals are surface or interface reactions. Be it crystal growth, adsorption reactions, mineral dissolution, redox reactions, or even the growth of crystallites from the melt, the actual reactions take always place at mineral surfaces. This is one reason why I got started to analyze the atomic and electronic structure, the chemistry and reactivity of mineral surfaces. In addition, over the last 20 years, a number of surface-sensitive techniques has been developed to image and analyze surfaces with up to atomic resolution. Thus, it is possible now to resolve reaction mechanisms step by step without relying too much on hypotheses. Furthermore, we can calculate some of these reactions at a quantum mechanical level. This way, it has become much more satisfying to understand environmental reactions, predicting these, or optimize certain reaction types for technological applications or remediation purposes. Among the projects that we are working on right now are:
This list shows the plethora of applications using the surface-sensitive tools (e.g., STM, AFM, XPS ...) in combination with computer simulations.
Earth and Environmental Sciences
2534 C.C. Little Building1100 North University Ave
Ann Arbor, MI