Fabrication of ORR/OER Electrocatalysts with simple one-step strategy from sustainable cornstalks

Fabrication of ORR/OER Electrocatalysts with simple one-step strategy from sustainable cornstalks

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Here we report a simple efficient one-step strategy to fabricate Oxidation Reduction Reaction (ORR) or/and Oxygen Evolution Reaction (OER) electrocatalysts directly from agricultural cornstalks waste with hierarchical porous structures and massive active hydroxyl groups.CaCl2 and NH4Cl activators were utilized to Bosch Serie 6 GIN81AEF0G Frost Free Built In Freezer corrode the cornstalks in order to create a mesopore N-doped hybrid structure that was sufficiently stable under the high-temperature pyrolysis process, which prevented neighboring aggregates of transition metals.The synergistic effect of N, B and Fe, Co within the hierarchical biochar structures guaranteed a favorable ORR activity of 0.848 V and OER activity of 393 mV for the CaCl2 sample, showed better stability than commercial Pt/C Hockey Skates - Junior - Elite and IrO2 catalysts.