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Explore the microscopic mechanisms governing electrocatalytic reactions through this 56-minute conference presentation that delves into the electric double layer (EDL) at metal-electrolyte interfaces. Learn about density-potential functional theory (DPFT), a hybrid quantum-classical approach that self-consistently treats metal electronic structure, adsorbates, solvent molecules, and ionic species as functions of electrode potential. Discover how this theoretical framework rationalizes capacitive and electrode kinetic phenomena at electrochemical interfaces, with particular focus on supported electrocatalyst nanoparticles where concurrent electronic and ionic equilibria shape catalytic activity. Examine advanced field-theoretic treatments of electron-ion correlations that extend EDL theory beyond mean-field approximations, achieving quantitative agreement with experimental capacitance data while resolving longstanding questions in classical double layer theories. Understand how support materials induce perturbations in local electronic and ionic charge densities at nanoparticle surfaces, directly influencing their capacitive response and electrocatalytic performance. Gain insights into the conceptual unification of double-layer charging and electrosorption processes, essential for advancing electrochemical energy device performance through improved understanding of the local reaction environment.
