Core-shell heterostructure by coupling layered ReS2 with Co9S8 nanocubes for boosted oxygen evolution reaction

Stepwise Construction of MoS2@CoAl-LDH/NF 3D Core–Shell Nanoarrays with High Hole Mobility for High-Performance Asymmetric Supercapacitors

“…The presence of these elements in the material was demonstrated based on the characteristic peaks showing Co, Al, Mo, and S in the full spectrum (Figure b). The peaks at 228.5 and 231.8 eV in Figure c can be ascribed to Mo 3d 3/2 and Mo 3d 5/2 , and the peak at 235.3 eV corresponds to the highly oxidized state of Mo 6+ owing to the oxidation of the material surface by air. , The distinct peak at 226 eV is associated with the S 2– originating from the S 2s orbital. , The S 2p spectroscopic analysis (Figure d) reveals three distinct signatures, corresponding to S 2p 3/2 (at 161.6 eV), S 2p 1/2 (at 162.6 eV), and SO x species (with a peak at 168.2 eV). , Figure e presents a spectroscopic analysis of Co 2p, featuring Co 2+ and Co 3+ at 781.2 and 778.8 eV for the Co 2p 3/2 state and 797.0 and 794.0 eV for the Co 2p 1/2 state. Additionally, two distinct signatures are observed at 803.2 and 786.4 eV, which can be ascribed to the satellite peaks associated with Co 2p .…”

“…32,33 The S 2p spectroscopic analysis (Figure 4d) reveals three distinct signatures, corresponding to S 2p 3/2 (at 161.6 eV), S 2p 1/2 (at 162.6 eV), and SO x species (with a peak at 168.2 eV). 34,35 Figure 4e presents a spectroscopic analysis of Co 2p, featuring Co 2+ and Co 3+ at 781.2 and 778.8 eV for the Co 2p 3/2 state and 797.0 and 794.0 eV for the Co 2p 1/2 state. Additionally, two distinct signatures are observed at 803.2 and 786.4 eV, which can be ascribed to the satellite peaks associated with Co 2p.…”

Core–Shell CoS2@MoS2 with Hollow Heterostructure as an Efficient Electrocatalyst for Boosting Oxygen Evolution Reaction

“…Apart from modifying the 2 of 12 composition, a delicate structural design is also important for improving the electrocatalytic performance. Great attention has been paid to develop Prussian blue analog (PBA)-based nanomaterials in the application of energy storage and conversion systems [23,24], while the poor electrical conductivity and inertness of intrinsic activity prevent the application of pristine PBA nanomaterials for OER [25]. The regulation of the adsorption energy of active sites and the improvement of intrinsic conductivity can be modified by the incorporation of heteroatoms (S, P, Se, F, etc.)…”