Nanopore-confined g-C₃N₄nanodots in N, S co-doped hollow porous carbon with boosted capacity for lithium–sulfur batteries

Abstract

Controllable synthesis of graphitic-C3N4 nanodots embedded in N, S co-doped hollow porous carbon via a double-solvent strategy for obtaining high performance of lithium–sulfur batteries.

Multifunctional Heterostructures for Polysulfide Suppression in High‐Performance Lithium‐Sulfur Cathode

“…X‐ray photoelectron spectroscopy (XPS) is further used to identify the bonding characteristics and obtain an accurate surface composition of DCC and DCC@MoS 2 /PrNP/CNTs as shown in Figure S6 (Supporting Information). The overall XPS spectrum of DCC reveals the presence of carbon, nitrogen, and sulfur elements in the DCC . The XPS spectrum of DCC@MoS 2 /PrNP/CNTs confirms the existence of elemental C, N, S, Mo, Ba, Mn, Mg, and O with the relative atomic contents of 78%.16%, 0.54%, 9.67%, 3.95%, 1.03%, 0.76%, 0.13%, and 5.75%, respectively.…”

Multifunctional Chitosan–rGO Network Binder for Enhancing the Cycle Stability of Li–S Batteries

“…The peak intensities of the S 6 2− species were greatly decreased after adding the binder, and the greatest decrease of absorbance at 340 nm was observed with Chi–rGO (Figure c). These results clearly demonstrate that Chi–rGO binder adsorbed LPS efficiently due to their network structure and abundant polar functional groups, such as OH, NH 2 , and COOH . In particular, these functional groups have a high affinity to LPS, and are well dispersed in the active materials, providing ample opportunities for contact with LPS …”

Constraint spaces in carbon materials

“…g-C 3 N 4 nanodots with the sizes less than 5 nm were conned into a MOF-derived N,S-codoped hollow porous carbon shell, and the resulting composite demonstrated excellent performances in Li-S batteries as cathode. 66 As shown in Fig. 17, the composite exhibits much higher capacity and much better rate and cycle performances than neat g-C 3 N 4 and the pristine porous carbon.…”