Structurally engineered CNT-confined Mn <sub><i>x</i></sub> Ru<sub>1-<i>x</i></sub> O<sub>2</sub> catalysts for efficient acidic oxygen evolution at low Ru loading.
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ABSTRACT: Developing acidic oxygen evolution reaction (OER) catalysts with low noble metal loading and high activity remains a critical challenge for advancing proton exchange membrane water electrolyzers. Herein, we report structurally engineered Mn x Ru1-x O2 catalysts confined on carbon nanotubes (CNTs), enabling highly dispersed active sites and remarkable catalytic activity at low Ru content. The uniform nanoscale coating of Mn x Ru1-x O2 along CNT sidewalls promotes Mn-O-Ru interfacial bonding and establishes an electron-bridge for enhanced charge transfer. The optimized CNT-(Mn0.75Ru0.25)O2 catalyst delivers a low overpotential of 120 mV at 10 mA cm-2 and a
SUBMITTER: Zheng X
PROVIDER: S-EPMC12462428 | biostudies-literature | 2025 Oct
REPOSITORIES: biostudies-literature
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