Akbari, Mohammad Saleh Ali Nandy, Subhajit Chae, Keun Hwa Najafpour, Mohammad Mahdi 2024-04-04T02:30:37Z 2024-04-04T02:30:37Z 2024-04-04 2024-04 1948-7185 https://pubs.kist.re.kr/handle/201004/149573 This study focuses on the oxygen-evolution reaction (OER) activity comparison between two forms of NiFe (hydr)oxides: compound 1, where Fe ions are applied on the surface of nickel (hydr)oxide, and compound 2, with Fe ions incorporated into the structural matrix of nickel (hydr)oxide. The observed exponential link between Coulombic energy and the total charge of the system points to a direct proportionality between the potential and the concentration of oxidized nickel ions (e.g., V (sic) [oxidized Ni]), diverging from the logarithmic relationship outlined in the Nernst equation or its modifications, which is not evident in this case. Initial visible spectroscopy indicates a notable trend toward oxidation. As, during the oxidation, more Ni is oxidized, a repulsion effect develops, diminishing the likelihood of further oxidation, and a distinct linear correlation emerges between the quantity of oxidized Ni(II) and the applied potentials. English American Chemical Society Iron Integration in Nickel Hydroxide Matrix vs Surface for Oxygen-Evolution Reaction: Where the Nernst Equation Does Not Work Article 10.1021/acs.jpclett.4c00604 1 The Journal of Physical Chemistry Letters, v.15, no.13, pp.3591 - 3602 The Journal of Physical Chemistry Letters 15 13 3591 3602 N scie scopus 001190668500001 2-s2.0-85188687724 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Atomic, Molecular & Chemical Chemistry Science & Technology - Other Topics Materials Science Physics Article WATER OXIDATION FE-SITES METAL OXIDE NIFE ELECTROCATALYSTS OXYHYDROXIDE ELECTROLYSIS EXFOLIATION CATALYST