Synthesis of high-performance Mo2S3/NiS2-RGO anode materials and its applications in sodium-ion batteries and sodium-ion capacitors

Enhanced visible-light-driven RhB removal with a Mo–Ni bimetallic sulfide/g-C3N4 nanosheet Schottky junction

“…The binding energies of MNS at 853.6 and 871.4 eV correspond to the Ni 2p 3/2 and Ni 2p 1/2 of Ni 2+ , and the binding energies at 855.0 and 876.2 eV correspond to the Ni 2p 3/2 and Ni 2p 1/2 of Ni 3+ , respectively. 43 The two peaks at 859.6 eV and 881.2 eV are assigned to their satellite peaks, 30 which also indicates the existence of NiS 2 . For the MNS/CNNS-10 sample, due to the low signal-to-noise ratio, fitting of the Ni 2p spectrum is difficult to perform.…”

Mesoporous ZnS-Sb/C Reduced Graphene Oxide Nanostructures as Anode Materials for Sodium-Ion Batteries

“…39 In Figure 3i, the two peaks at 285.5 and 284.8 eV belong to C−O and C−C/C�C bonds, respectively, confirming the presence of graphene and amorphous carbon layers in the composite. 40,41 The working mechanism of the ZnS-Sb@C@rGO sample was analyzed by cyclic voltammetry. Figure 4a gives the CV curves of ZnS-Sb@C@rGO at a voltage window of 0−3 V. It can be seen that during the first cycle of discharge, the first broad peak of ZnS-Sb@C@rGO will appear at around 2.0 V, which belongs to the process of forming a solid electrolyte interfacial (SEI) film.…”

Synthesis of Flower-Like Nb2Se9 as High-Performance Anode Materials for Lithium-Ion and Sodium-Ion Batteries

“…To reveal the possible reasons for the excellent rate performance of F-Nb 2 Se 9 , pseudo-capacitive contribution analysis based on CV curves at multiple scanning rates (0.2–1.0 mV s –1 ) was performed. The pseudo-capacitance reaction that occurs on the surface of the material is faster than the ion diffusion process, so that the material with the pseudo-capacitance reaction as the main reaction will have a faster reaction rate. , Therefore, we analyzed the contribution of pseudo-capacitance to the total capacity during the lithium-ion storage of F-Nb 2 Se 9 and R-Nb 2 Se 9 . As displayed in panels a and b of Figure , each CV curve under different scan rates has a similar outline with two redox peaks, and the response current increases likewise with the increase of the scan rate.…”