Enabling carbon nanofibers with significantly improved graphitization and homogeneous catalyst deposition for high performance electrocatalysts

M3C (M: Fe, Co, Ni) Nanocrystals Encased in Graphene Nanoribbons: An Active and Stable Bifunctional Electrocatalyst for Oxygen Reduction and Hydrogen Evolution Reactions

“…Raman spectra are used to study the degree of graphitization of the M 3 C-GNRs samples because the D band (1360 cm –1 ) and G band (1590 cm –1 ) provide information on the disorder and crystallinity of sp 2 carbon materials, respectively. After being hybridized with M 3 C, the I G / I D of M 3 C-GNRs is largely increased (Figure c), indicating the graphitic structure of GNRs is greatly enhanced; this should be ascribed to the catalytic graphitization effect . The more perfect crystalline structure is in favor of improving the electrical conductivity .…”

“…After being hybridized with M 3 C, the I G /I D of M 3 C-GNRs is largely increased (Figure 2c), indicating the graphitic structure of GNRs is greatly enhanced; this should be ascribed to the catalytic graphitization effect. 49 The more perfect crystalline structure is in favor of improving the electrical conductivity. 42 The obvious upshift of 2D band in comparison with that of VA-GNRs may be due to the existence of carbon shells in M 3 C-GNRs hybrids.…”

Oxygen Vacancy-Induced Structural, Optical, and Enhanced Supercapacitive Performance of Zinc Oxide Anchored Graphitic Carbon Nanofiber Hybrid Electrodes

“…To exploit the power density of available metal oxide supercapacitors, several groups have recently fabricated composite/hybrid electrodes via the modification of carbonaceous materials with metal oxides. , Carbon-based materials in the form of powders, fibers, aerogels, composites, sheets, monoliths, and tubes have been widely used as electrodes because of their low cost, variety of morphology/structure, easy processing, high electrical conductivity, improved chemical stability, relatively inert electrochemistry, extremely high mechanical strength, controllable porosity, and electrocatalytic active sites for a wide range of redox reactions. ,,− Among these materials, carbon nanofibers (CNFs) are attractive electrode additive materials for improving the performance of metal oxide supercapacitors. CNFs have high-specific-surface area, well-defined hollow cores, and a high aspect ratio greater than 1 × 10 6 .…”

Pt/C Electrocatalysts with High Pt Density: A Case Study on Oxygen Reduction Performance from Rotating Disk Electrode to Membrane Electrode Assembly

“…Among these, carbon-supported Pt-based catalysts, such as Pt nanoparticles (NPs), − Pt alloys with both precious and nonprecious metals, like Pt–M (M = Pd, Au, Co, Ni, etc. ), − and metal oxide-modified Pt, − are recognized as the most active and stable catalysts for ORR. Notably, Pt/C stands out as one of the few commercialized catalysts used in PEMFCs, underscoring the immense potential of developing Pt/C series catalysts .…”