Synergistic effect of heteroatom-doped activated carbon for ultrafast charge storage kinetics

Surface functional group‐tailored B and N co‐doped carbon quantum dot anode for lithium‐ion batteries

“…To modify the surface functional groups of carbon-based materials, anion doping is a powerful strategy; nitrogen, sulfur, boron, and fluorine are utilized as dopant, which bond with carbon. [19][20][21] In addition, these doped anions influence the electrical characteristics of carbon, such as increasing the charge carriers, providing additional charge storage sites, and improving the electronegativity pertaining to the bonding state and doping site within the carbon lattice. 22 In this regard, tailoring the surface functional groups and enhancing the electrical conductivity of CQDs for LIB anode materials should be performed, which has not been studied in detail till date.…”

Fabrication of N,B‐codoped Graphene Aerogel/PPy Composites for Asymmetric Supercapacitor

“…The N1s peaks of NBGA (see Figure 3a) are deconvoluted at 399.5 eV, 400.0 eV and 401.3 eV, corresponding to pyridinic N (399.5 eV), pyrrolic‐N (400.1 eV) and graphitic N (401.3 eV), respectively [19,20] . In general, due to breaking the bonds of C, the pyidinic‐N and pyrrolic‐N contribute to the increasing active site and offer one and two p‐electron by aromatic π system [21] . Pyridinic‐N, pyrrolic‐N and graphitic‐N configurations caused by N‐doping in carbon lattice act as electron donor to attract protons [11] .…”

“…[19,20] In general, due to breaking the bonds of C, the pyidinic-N and pyrrolic-N contribute to the increasing active site and offer one and two p-electron by aromatic π system. [21] Pyridinic-N, pyrrolic-N and graphitic-N configurations caused by N-doping in carbon lattice act as electron donor to attract protons. [11] As seen in Figure 3b, the C1s spectrum can be deconvoluted into three peaks with binding energies of 284.7 eV, 285.2 eV and 286.2 eV, corresponding to sp 2 CÀ C, CÀ B and CÀ O, respectively.…”

Effect of pore structure and doping species on charge storage mechanisms in porous carbon-based supercapacitors

“…Heteroatom doping is another effective strategy to modify the carbon structure, as well as to enhance the electronic conductivity and wettability of carbon-based electrodes, thus improving their electrochemical performance. [52][53][54] Many recent experimental and computational studies have already confirmed that heteroatom doping within the carbon skeleton can induce higher charge delocalization and density of donor states near the Fermi level, expand the interlayer spacing and enhance the wettability of the active material, which are highly desirable for high performance electrode materials. [55][56][57][58] In general, O, [59][60][61] N, 56,62,63 P 64,65 and B 66,67 are the most widely studied dopants for carbon-based materials.…”