A metal-organic-framework/carbon composite with enhanced bifunctional electrocatalytic activities towards oxygen reduction/evolution reactions

229A Co-OBA/C (OBA = 4,4′-Oxybis (benzoic acid)) composite catalyst was synthesized by integrating MOF (Co-OBA) with black carbon through a hydrothermal process. The Co-OBA/C catalyst shows much better ORR, OER and bifunctional activities than the Co-OBA + C catalyst due to the synergistic effect between Co-OBA and carbon black in the Co-OBA/C catalyst.