1 Ocak 2023 Dergi makalesi Açık Erişim

Chalil Oglou, Ramadan; Ulusoy Ghobadi, Turkan Gamze; Hegner, Franziska Simone; Galan-Mascaros, Jose Ramon; Lopez, Nuria; Ozbay, Ekmel; Karadas, Ferdi

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        "affiliation": "Bilkent Univ, UNAM Natl Nanotechnol Res Ctr, TR-06800 Ankara, Turkiye", 
        "name": "Chalil Oglou, Ramadan"
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        "affiliation": "Bilkent Univ, NANOTAM Nanotechnol Res Ctr, TR-06800 Ankara, Turkiye", 
        "name": "Ulusoy Ghobadi, Turkan Gamze"
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        "affiliation": "Tech Univ Munich TUM, D-85748 Garching, Germany", 
        "name": "Hegner, Franziska Simone"
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      {
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        "affiliation": "Barcelona Inst Sci & Technol BIST, Inst Chem Res Catalonia ICIQ CERCA, Tarragona 43007, Spain", 
        "name": "Lopez, Nuria"
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    "description": "<p>Electrocatalytic processes involving the oxygen evolution reaction (OER) present a kinetic bottleneck due to the existence of linear-scaling relationships, which bind the energies of the different intermediates in the mechanism limiting optimization. Here, we offer a way to break these scaling relationships and enhance the electrocatalytic activity of a Co-Fe Prussian blue modified electrode in OER by applying external stimuli. Improvements of &amp; AP;11 % and &amp; AP;57 % were achieved under magnetic field (0.2 T) and light irradiation (100 mW cm(-2)), respectively, when working at fixed overpotential, &amp; eta;=0.6 V at pH 7. The observed enhancements strongly tie in with the intermetallic charge transfer (IMCT) intensity between Fe and Co sites. Density Functional Theory simulations suggest that tuning the IMCT can lead to a change of the OER mechanism to an external stimuli-sensitive spin crossover-based pathway, which opens the way for switchable electrocatalytic devices.</p>", 
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      "title": "ANGEWANDTE CHEMIE-INTERNATIONAL EDITION", 
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    "title": "Manipulating Intermetallic Charge Transfer for Switchable External Stimulus-Enhanced Water Oxidation Electrocatalysis"
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