N, S co-doped biomass derived carbon with sheet-like microstructures for supercapacitors

N, S Co‐Doped Porous Carbon from Antibiotic Bacteria Residues Enables a High‐Performance FeF3 ⋅ 0.33H2O Cathode for Li‐Ion Batteries

“…Furthermore, The EDS mapping images presented in Figure 2c indicate that N, S, Fe, F and O were homogeneously distributed in NPSC. Because N and S elements have different electronegativity in comparison with adjacent C atoms, [26] which can improve the conductivity of 3D conductive network from ABRs. Moreover, TEM and HRTEM images of FF@NSPC (Figure 2d and e) indicate that the internal pores of NSPC are filled by lots of FeF 3 ⋅ 0.33H 2 O nanoparticles.…”

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

“…19 Therefore, heteroatom doping (e.g., O, N, P, S, B) is elected as a useful method to enhance the capacitive performance of carbon materials. 9,[20][21][22][23][24] Among them, the main reasons for choosing P are lower electronegativity and larger covalent radius. The lower electronegativity (2.19) of P atom compared to that of C atom (2.55) and the high electron donating property of the P atom makes the P dopant positively charged, which is advantageous for charge transfer.…”

Three-dimensional pore structure of activated carbon monolithic derived from hierarchically bamboo stem for supercapacitor application

“…This contains a natural porous network, known to support the generation of threedimensional (3D) pore structures [18], and also provide high ion transport [16]. Therefore, bamboo has been suggested as a supercapacitor electrode, and some reports show the fabrication into powder forms, under varied conditions, including temperature of carbonization [19] and activation [18,20], chemical treatment with KOH [18,21,22] or molten carbonate [23], as well as doping with heteroatom (S, N, B) [22,24,25]. Unfortunately, the phenomenon of dusting reduces mechanical strength, while binder materials lead to poor electrical conductivity and high production cost [2].…”