Bimetal-MOF and bacterial cellulose-derived three-dimensional N-doped carbon sheets loaded Co/CoFe nanoparticles wrapped graphite carbon supported on porous carbon nanofibers: An efficient multifunctional electrocatalyst for Zn-air batteries and overall water splitting

Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

“…To further elevate the power densities of ZABs and decrease the applied voltage of OWS, metal-based electrocatalysts, particularly Co-based catalysts, garnered significant attention. Several catalysts were investigated, including CoP@P,N co-doped carbon (CoP@PNC), 482 CoMn 2− x Cr x O 4 , 483 FeCo/Co 2 P nanoparticles, 484 hierarchical CuCoNC nanowire arrays, 485 Co–N-carbon monolithic electrode, 486 Co,O-doped carbon, 487 Co 2 P/CoNPC, 488 CoFeN-NCNTs//CCM, 489 CoO x /CoN y @CN z , 490 Co 4 N@NC, 491 Co@NCL, 492 Co 3 W 3 C/CoP/NPC, 493 Co/MoC@PC, 494 Co@NC-CNTs@NiFe-LDH, 495 FeCo/NPC, 496 Co/CoFeNC@N-CNF, 497 CoFe-N-CNTs/CNFs, 498 and CoFe 2 O 4 /CoFe. 499 For instance, Yoo et al fabricated a hierarchical FeCoMoS nanoflower encapsulated in nitrogen doped graphene (FeCoMoS@NG) for zinc–air batteries and overall water splitting.…”

Structural and compositional analysis of MOF-derived carbon nanomaterials for the oxygen reduction reaction

“…160 Bimetallic catalysts can be synthesized by pyrolyzing MOFs containing multiple metal ion centers. 161,162 For instance, Kim's group developed carbon nanospheres with hollow structures containing diatomic active sites (Fe-N x , Co-N x ). Polystyrene (PS) spheres were coated with polypyrrole (PPy), and Zn-Co-ZIFs were grown on the PS-PPy surface.…”

“…12 Bimetallic/polymetallic MOFs typically undergo pyrolysis, which results in the formation of alloy nanoparticles like FeCo, FeNi, CoNi, and others. 159,162,165 This process causes changes in the electronic structure of the metal, affecting the activity of the catalyst. For instance, FeCo alloy nanoparticles alter the electronic structure of Co, enhancing the desorption of O atoms and improving ORR efficiency.…”

One-Pot Formation of an rGO-Based ZnAl2O4 Nanocomposite for Electrochemical Studies toward Oxygen Evolution Reactions

“…The nanocomposites under consideration encompass a range of materials, including hydroxides, , oxides, , carbides, − selenides, , sulfides, , and phosphates. , The abundance, cost-effectiveness, and synergistic properties of zinc metal hydroxides and oxides have drawn substantial interest as potential catalysts. The electrochemical performance of zinc hydroxides or oxides appears to be superior when compared to that of pure forms of these materials helps to facilitates the transport of ions. − …”