Abstract
Iron oxide (Fe2O3) material is considered as a promising catalyst for electrochemical applications. This study reports a design of magnetically Fe2O3 microboxes loaded on macroporous carbon (MPC) hybrids for high-performance electrocatalysts. The obtained Fe2O3 microboxes were converted by decomposition of Prussian blue microcubes (FeIII4[FeII(CN)6]3·nH2O) at a moderate temperature of 350 °C in air. MPC materials with excellent conductivity can offer a platform for the incorporation of Fe2O3 microboxes to form novel hybrid nanostructures with synergetic effects. Because of the unique structural properties and synergetic catalytic effect, a sensitive electrochemical sensor for nitrobenzene was developed based on Fe2O3/MPC, which showed a wide linear range, low detection limit, high sensitivity, and good stability.
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