VS4 anchored on Ti3C2 MXene as a high-performance cathode material for magnesium ion battery

TiVCTx MXene/Chalcogenide Heterostructure‐Based High‐Performance Magnesium‐Ion Battery as Flexible Integrated Units

“…Therefore, we have reason to believe that the NCSe@TiVCT x heterostructure cathode has the potential for high-performance Mg ion storage. As shown in Figure 6a, we compared the various characteristics of the NCSe@TiVCT x heterostructure cathode with various RMB electrodes as reported in a previous study [8,9,27,36] and Table S1 [31,[36][37][38][39][40][41][42][43][44] in Supporting Information, we compared the NCSe@TiVCTx heterostructure with various reported cathode materials for RMBs for a variety of characteristics, particularly the cyclability, confirming that the NCSe@TiVCT x heterostructure cathode shows advantageous applied practical potential.…”

Self‐Supporting Multicomponent Hierarchical Network Aerogel as Sulfur Anchoring‐Catalytic Medium for Highly Stable Lithium–Sulfur Battery

“…The lattice spacings of 0.303, 0.217, and 0.222 nm can be observed from the high‐resolution HRTEM images (Figure 1d,e), which correspond to the (−321), (013), (−422) planes in the VS 4 nanoparticles. [ 21 ] This indicates that VS 4 maintains its original chain crystal structure during the nucleation process on the MX surface. Concentric diffraction rings were given by corresponding selected area electron diffraction (Figure 1f).…”

“…As an electron donor, MX stabilizes the VS 4 chain crystal structure and maintains the weak van der Waals force in the VS 4 chain crystal structure, which keeps the overall structure loose. [ 21 ] The loose crystal structure is beneficial to enhance the adsorption capacity of the composite structure for LiPSs. In addition, through the calculation of the differential charge density of MX@VS 4 (Figure 4c), it can be found that there is electron transfer between MX and VS 4 .…”

“…In addition, the fitting peaks of Ti 4+ appeared at 458.4 and 465.1 eV, which is speculated to be caused by that the MX surface functional groups are sulfided to Ti-S bonds during the hydrothermal process. [21,25] Figure 2e shows the high-resolution spectrum of V 2p, and the fitting peaks at 516.8 and 524.3 eV correspond to V 4+ . The fitting peaks at 513.8 and 521.0 eV can be attributed to the formation of V-C bond, [21] which can be correlated to the D, G peak ratio change of three aerogel materials.…”

Vanadium Tetrasulfide for Next‐Generation Rechargeable Batteries: Advances and Challenges

“…[140][141][142] Moreover, unlike other carbonaceous materials, MXene can store magnesium, thus increasing the conductivity without sacrificing capacity. Zhu et al [143] prepared VS 4 @Ti 3 C 2 /C with unique layered nano-micro hybrids via a facile hydrothermal method. VS 4 nanosheets were tightly anchored to Ti 3 C 2 via VÀ C bonds instead of simple adsorption.…”