Science Daily January 19, 2022
Strong interaction of metal with water molecules leads to water chemisorption and accumulation of ions in the Helmholtz layer beyond expectation, resulting in a higher interface charge storage ability. An international team of researchers (Germany, Israel, France) extracted new physico-chemical information on the capacitance and structure of the electrical double-layer of platinum and gold nanoparticles at the molecular level, employing single nanoparticle electrochemistry. The charge storage ability of the solid/liquid interface is larger by one order-of-magnitude than predicted by the traditional mean-field models of the double-layer. Using molecular dynamics simulations, they investigated the possible relationship between the measured high capacitance and adsorption strength of the water adlayer formed at the metal surface. According to the researchers these findings may transform energy technologies towards superior performance and sustainability…read more. Open Access TECHNICAL ARTICLEÂ
Graphical abstract. Credit: Angewandte Chemie, 18 November 2021Â