Cobalt‐Exchanged Poly(Heptazine Imides) as Transition Metal–Nx Electrocatalysts for the Oxygen Evolution Reaction
Source abstract
Abstract
Abstract Poly(heptazine imides) hosting cobalt ions as countercations are presented as promising electrocatalysts for the oxygen evolution reaction (OER). A facile mixed‐salt melt‐assisted condensation is developed to prepare such cobalt poly(heptazine imides) (PHI‐Co). The Co ions can be introduced in well‐controlled amounts using this method, and are shown to be atomically dispersed within the imide‐linked heptazine matrix. When applied to electrocatalytic OER, PHI‐Co shows a remarkable activity with an overpotential of 324 mV and Tafel slope of 44 mV dec−1 in 1 m KOH.
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Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry Functional Materials Technische Universität Berlin Hardenbergstr. 40 10623 Berlin Germany
Max Planck Institute of Colloids & Interfaces Department of Colloid Chemistry D‐14476 Potsdam Germany
Freie Universität Berlin Fachbereich Physik Berlin Joint EPR Lab Arnimallee 14 D‐14195 Berlin Germany
Leibniz‐Forschungsinstitut für Molekulare Pharmakologie im Forschungsverbund Berlin e.V. (FMP) Campus Berlin‐Buch Robert‐Rössle‐Str. 10 13125 Berlin Germany
Funding
Deutsche Forschungsgemeinschaft
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