2023年4月15日 · Realizing the continuously adjustment of VS 2 interlayer spacing through simple intercalation. A novel VS 2 -based sensor is reported for its low-concentration (200 ppb) and fast recovery (∼10 s) NO 2 detection at 100 °C. Revealing the effect of the VS 2 layer-spacing variationon their gas-sensing performances innovatively.

2024年4月12日 · The X-ray photoelectron spectroscopy (XPS) of VS 2 was measured, and the corresponding curves are shown in Figure 4C,D. The high-resolution V 2p spectra of VS 2 display the doublet peaks located at 524.0 and 516.5 eV, corresponding to the 2p 1/2 and 2p 3/2 peaks of V(IV) and V (III), respectively.

2022年12月30日 · Revealing the p-type semiconducting features of the expanded VS 2 with coexistence of T and H phases. Confirming that enlarging the interlayer spacing can improve the gas-sensing properties of 2D TMDs innovatively. In-depth explanations are supported by the DFT calculations and the mechanism explanation.

层状二硫化钒 (VS2) 作为一种典型的过渡金属硫化物，因其大的层间距和多价态的钒，能够实现多步氧化还原反应，具有高的理论比容量，因此在水系锌离子电池中展现出巨大的应用潜力。 然而，VS2 中 V-S 键的结合力相对较弱，充放电过程中容易导致晶体结构损坏，降低其在电化学过程中的循环稳定性。 此外，VS2 纳米片层间的堆叠作用会削弱其储锌能力，这进一步限制了 VS2 大规模应用于锌离子电池 (ZIBs) 的可能性。 【本文要点】 ⭐合成调控：通过调控氨辅助水热法与 …

2D H‐phase vanadium disulfide (VS2) is expected to exhibit tunable semiconductor properties as compared with its metallic T‐phase structure, and thus is of promise for future...

2022年8月31日 · Here we report an intrinsic heterodimensional superlattice consisting of alternating layers of two-dimensional vanadium disulfide (VS 2) and a one-dimensional vanadium sulfide (VS) chain array,...

2023年11月7日 · The XPS result strongly suggests the successful synthesis of VS 2 with a single valence state and no oxidation, indicating its high-quality crystallization and chemical stability. Factors influencing the growth of 2D monolayer VS 2 crystals in the APCVD synthesis process

2023年11月30日 · From the EDS mapping images of VS 2 /CNTs/C-20 (Fig. 4 h–k), V, S, N, and C elements are evenly distributed in the composite, which is consistent with the XPS results. The C mapping image shows a profile consistent with the others, providing direct evidence for the uniform coverage of the carbon layer [ 51 ].

We characterize chemical state of the ML VS2 by using XPS spectra. Core-level spectra of the VS2 film shows mostly V and S signals in addition to Si and C signals from the substrate, as shown...

2018年9月17日 · The V 2p x-ray photoemission spectroscopy (XPS) spectrum shows two peaks at 517.01 and 524.36 eV, corresponding to the V 2p 3/2 and V 2p 1/2 states due to the spin-orbital splitting effect, respectively.