High dispersion and oxygen reduction reaction activity of Co₃O₄ nanoparticles on platelet-type carbon nanofibers

Abstract

In this study, platelet-type carbon nanofibers prepared by the liquid phase carbonization of polymers in the pores of a porous anodic alumina template were used to prepare the Co3O4/carbon electrocatalysts.

Nonprecious Hybrid Metal Oxide for Bifunctional Oxygen Electrodes: Endorsing the Role of Interfaces in Electrocatalytic Enhancement

“…The use of carbonaceous substances, which not only increases the electronic conductivity but also acts as a robust and stable support with high mechanical strength, is highly recommendable. 8 Yamada et al 9 used platelet-type carbon nanofibers as a carbon support for Co 3 O 4 nanoparticles (NPs) for the oxygen reduction reaction (ORR). They ascribed the improved ORR activity to the homogeneous dispersion of oxide NPs on the carbon support and oxide/carbon interaction.…”

Efficient iron–cobalt oxide bifunctional electrode catalysts in rechargeable high current density zinc–air batteries

“…Without oxygen functional groups, metal oxides have been found to preferentially nucleate on the edge planes rather than on the basal planes of graphite. 51…”

High-corrosion-resistance mechanism of graphitized platelet-type carbon nanofibers in the OER in a concentrated alkaline electrolyte

“…1e, g, and i show the nanorod-like morphology of the pCNFs. For pCNF2000 and pCNF2400, prepared by liquid-phase carbonization using a porous anodic alumina template, 2,7,18,21,29,52 the diameters, controlled by the template pore size, were $55 nm. In contrast, the ber diameter of pCNF3000, prepared by a catalytic chemical vapor deposition method, varied between 80 and 300 nm.…”

“…Carbon is one of the key components in electrochemical energy conversion and storage systems, such as lithium-ion batteries, [1][2][3][4][5][6] electrochemical capacitors, [7][8][9][10][11][12][13][14][15] polymer electrolyte fuel cells (PEMFCs), [16][17][18][19][20][21][22][23] and metal-air secondary batteries (MABs). [24][25][26][27][28][29][30][31] However, carbon materials suffer from electrochemical oxidation; that is, carbon corrosion occurs in aqueous electrolytes at high anodic potentials, where many important electrochemical reactions, including the oxygen evolution reaction (OER), transpire.…”