MoS₂@C with S vacancies vertically anchored on V₂C-MXene for efficient lithium and sodium storage

Abstract

Molybdenum sulfide (MoS2) with high theoretical capacity and large interlayer distance has triggered extensive attention as a promising alternative anode for lithium ion batteries (LIBs) and sodium ion batteries (SIBs)....

Ultrafine Iridium Nanoparticles Anchored on Co-Based Metal–Organic Framework Nanosheets for Robust Hydrogen Evolution in Alkaline Media

“…The C 1s spectra with high resolution were resolved into three distinct peaks at 284.2, 284.6, and 287.1 eV, which correspond to the presence of CC, C–O, and CO bonds, respectively (Figure S5a). − In Figure S5b, the Co 2p 1/2 and Co 2p 3/2 peaks of Ir@Co-BPDC were observed at energy levels of 781.5 and 797.7 eV, respectively, accompanied by two satellite peaks at energies of 785.7 and 803.7 eV, which exhibited a pattern similar to that of Co 2+ . , The main peak for Co 2p 3/2 in Figure S5b appears at approximately 781.7 eV, which typically corresponds to a Co­(II) state. Co­(II) would exhibit the 2p 3/2 peak within a binding energy range of approximately 780–785 eV, while Co­(III) would be positioned at a higher binding energy. , We observe that the binding energy for the sample is slightly higher than the standard peak for Co­(II), possibly due to the influence of the ligand field.…”

Constructing a VS4–V2CTx heterojunction interface to realize an ultra-long lifetime and high rate capability in sodium-ion batteries

“…3g). 27,33,64–70 With different current densities (Fig. 3h), it can be observed from the galvanostatic charge/discharge curves of the VS 4 –V 2 CT x composites that increase from 0.1 A g −1 to 10 A g −1 , and the charge plateaus at ∼1.4 V and ∼1.8 V gradually disappear and transform into a slope, exhibiting a higher pseudocapacitive activity.…”

Tailoring supports for enhancing the electrocatalytic hydrogen evolution performance of platinum species: a review

“…[125][126][127] Nonetheless, the activity of 2D TMDs can be limited by their large inert basal planes and relatively poor conductivity. 128,129 Therefore, it is essential to activate the inert basal planes for increasing the density of active sites. By depositing noble metals onto the basal planes of 2D TMDs, the catalytic activity of TMDs can be signicantly enhanced due to the synergistic effect between the noble metal and TMDs.…”