My interrelated research interests are interdisciplinary studies of electrochemistry, material chemistry and surface science. We investigate materials at nano scale and develop methods for manufacturing nano-materials that possess enhanced electrocatalytic activity towards fuel oxidations, oxygen reduction/evolution reactions (ORR, OER), electrochemical CO2 reduction (CO2RR) and hydrogen evolution reaction (HER) for energy conversion/storage and power generation. We invented several new fuel cell processes for solid oxide fuel cells (SOFC) that can generate electricity and produce value-added products using non-conventional fuels such as H2S, industrial syngas and greenhouse gases. These “green” processes enable economic use of what is otherwise considered waste or pollution. We also study corrosion of metallic materials, coatings, and investigate material behaviors under chemical and/or mechanical actions to minimize material degradation, reduce costs and improve safety; we established the theoretical models that can predict corrosion behaviors, and uncovered corrosion mechanisms of metals in various media.