Cr-doped Pd metallene nanoribbon superstructures for the oxygen reduction reaction and formic acid oxidation
Shanshan Chen, Qiang Yuan, Xun Wang
Abstract
Metallene is receiving continuous attention because of its unique properties in electrocatalysis. Herein, we report a new class of three-dimensional (3D) Cr-doped Pd metallene nanoribbon (PdCr MNR) assembly. The 3D PdCr MNR was about 4 or 5 atomic layers thick with high-density low-coordinated Pd sites and abundant defects. The 3D PdCr MNR/C exhibited significantly enhanced oxygen reduction reaction and formic acid oxidation reaction compared with the commercial Pt/C and Pd/C and long-term durability. This work introduces a new member in the class of the metallene family, and this novel material is a promising bifunctional electrocatalyst for practical direct methanol/formic acid fuel cell devices.
Topics & Concepts
Formic acidOxygen reduction reactionOxygenDopingOxygen reductionMaterials scienceChemistryRedoxReduction (mathematics)Inorganic chemistryChemical engineeringPhysical chemistryOrganic chemistryElectrochemistryOptoelectronicsElectrodeEngineeringGeometryMathematicsElectrocatalysts for Energy ConversionFuel Cells and Related MaterialsAdvanced battery technologies research