Green synthesis of nitrogen and fluorine co-doped porous carbons from sustainable coconut shells as an advanced synergistic electrocatalyst for oxygen reduction

In situ encapsulation of abundant WP/Ni2P heterointerfaces in N,P co-doped two-dimensional carbon frameworks for boosting hydrogen evolution electrocatalysis

“…3c displays the high-resolution N 1s spectra of WP–Ni 2 P@NPC, where the four peaks located at 398.70, 399.90, 401.30 and 403.00 eV are well attributed to the four different N-dopants: pyridinic N, pyrrolic N, graphitic N and oxidized N, respectively. 22 The fitted P 2p spectra observed in Fig. 3d unveil four obvious peaks at 129.74, 130.51, 134.00 and 133.20 eV, which correspond well to P 2p 1/2 , P 2p 3/2 , P–C and P–O, respectively.…”

MoP nanocrystals encapsulated in N-doped three-dimensional carbon networks for efficient hydrogen evolution electrocatalysis

“…S8 (ESI†) shows the characteristic D band (at ∼1350 cm −1 ) and G band (∼1590 cm −1 ), which represent the disorder degree and graphitization degree, respectively. 32,33 The intensity ratio ( I D / I G ) of carbon in MoP/NC ( I D / I G = 1.15) is higher than that in NC ( I D / I G = 0.97), suggesting the more defects in the carbon layer of the MoP/NC hybrid. 34 The porosity and specific surface areas of the MoP/NC, MoP bulk and NC were evaluated by measuring N 2 sorption isotherms (Fig.…”

Boron and Fluorine Co‐Doped Graphene/Few‐Walled Carbon Nanotube Composite as Highly Active Electrocatalyst for Oxygen Reduction Reaction

“…[74] Similar effect is reported for the N and F co-doping of carbon, which induces defect sites and destroys the graphene carbon skeleton and thereby increases the degree of distortion. [75] Another visible change in the Raman spectra is that the D peak gradually widens which indicated that the sp 2 hybridization is disrupted after B and F doping. These Raman spectroscopy results are also in good agreement with previous results reported by Gong et al.…”