The catalyst that stores charge first

The catalyst that stores charge first

Author(s): Julia Linnemann, Christian Leppin

Publication: Bunsen-Magazin 2026, 4, 81-84

Publisher: Deutsche Bunsen-Gesellschaft für physikalische Chemie e.V., Frankfurt

Language: English

DOI: 10.26125/6g4p-8386

Abstract: Alkaline oxygen evolution on Co₃O₄ involves more than adsorption and electron transfer at a fixed surface. The article draws on operando electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), surface X-ray diffraction (SXRD), Raman, UV/Vis and impedance spectroscopy. On this basis, it discusses pseudocapacitive oxidation of cobalt ion sites, electrolyte uptake and near-surface transformation, and asks which of these changes are kinetically coupled to electrocatalysis.

Cite this:  J. Linnemann, C. Leppin, Bunsen-Magazin 2026, 4, 81-84, DOI: 10.26125/6g4p-8386

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