An ultrathin defect-rich nickel–cobalt oxide nanosheet array for enhanced bifunctional oxygen electrocatalysis

Abstract

Developing transition metal oxides (TMOs) electrocatalysts with high bifunctional activity is of significance for reversible fuel cells and rechargeable metal air batteries. Herein, we report a bifunctional nitrogen doped NiCoOx...

Toward Self‐Supported Bifunctional Air Electrodes for Flexible Solid‐State Zn–Air Batteries

“…Moreover, hydrothermal/solvothermal process can also be combined with pyrolysis to make the ideal air electrodes (Figure 13b). [83] Researchers have recently developed self-supported air electrodes, such as NiCoO x /NF, [83] MPZCC@CNT, [46] Co 3 O 4 @NiFe LDH/NF, [45] NiO@Co 3 S 4 /NF, [84] CoN-Nd/CC, [85] and NF/Cu 0.76 Co 2.24 O 4 /FeCo hydroxides (NF/CCO/FCH), [86] all of which exhibited excellent ORR, OER, and battery performances. For example, Yang et al [86] obtained an excellent air electrode via a two-step hydrothermal process.…”

“…[ 81 ] Copyright 2023, Elsevier B.V. b) Reproduced with permission. [ 83 ] Copyright 2023, Royal Society of Chemistry. c) Reproduced with permission.…”

“…a) Reproduced with permission [81]. Copyright 2023, Elsevier B.V. b) Reproduced with permission [83]. Copyright 2023, Royal Society of Chemistry.…”

NH3 plasma-etching-derived porous N-doped carbon nanotubes with FeP nanoparticles and intrinsic carbon defects for boosting oxygen reduction in rechargeable Zn–air batteries

“…Metal-free carbon-based and/or transition metalbased materials have embodied charming ORR catalytic performance and have been considered the most promising development potential for large-scale applications. [6][7][8][9][10][11][12] Carbonbased materials with miscellaneous nanomorphologies have been designed and displayed unique electrochemical activity. 13,14 Since the first synthesis reported by Iijima in 1991, carbon nanotubes (CNTs) have attracted wide research interests in electrochemical fields benefitting from several merits including exquisite electrical conductivity, vast specific surface area and porous channels for carrying more active sites, accommodating more reactants and products, and expediting mass transfer.…”