The main research focus of the Wieckowski group is on electrode surface structure in relation to electrocatalysis combined with molecular-level studies of surface oxidation and reduction processes, as well as on surface motional behavior in electrocatalysis. Professor Wieckowski pioneered the development (and use) of the method now known as Electrochemica NMR (EC-NMR), which combines metal/surface NMR and electrochemistry for studies of electrochemical interfaces. His group contribution is through new catalyst syntheses, the use of electroanalytical and spectroscopic methods: EC-NMR, XPS, STM, BB-SFG, synchrotron GIF-XAS for single crystal and nanoparticle studies, and through broadly published correlations of electronic-level data and reactivity for fuel cells.