Start: March 14, 2024 3:30 p.m.
End: March 14, 2024 4:30 p.m.
Molecular Scale Imaging and Fabricating of Nanomaterials for Applications in Environmental Remediation
Dr. Zhihai Li (Sabbatical Talk)
Associate Professor
Department of Chemistry, Ball State University
Thursday, March 14th @ 3:30 PM
FB 253
The adsorption of organic molecules on metal surface is of general importance as it is related to many processes and phenomena such as heterogeneous catalysis, corrosion prohibition, electrochemical sensors, and degradation of organic pollutants. In this presentation, I will introduce my sabbatical experience and research on three projects including the adsorption of a series of aromatic carboxylic acids and porphyrin molecules, where we found that the number of current peaks in cyclic voltammograms started to change from one to three at a concentration that we refer to “critical phase-transition concentration (CPC)”. Second, we also applied electrochemical STM techniques to the classic metal deposition systems and obtained some new insights into the initial metal deposition process which are important in metal corrosion and protection. Third, we have synthesized a series of shape-specific nanoparticles that show catalytic properties in photodegradation of organic pollutants.