Boron Sulfide

Boron sulfide is an amorphous powder that disperses in water or alcohol. It has a formula of B2S3. It has a valence band top state of 2.83 eV, which is slightly higher than the valence band top state of silicon. Boron sulfide is acid-soluble. In the presence of sulfur, it hydrolyzes into boric acid and phosphorus trisulfide.

A new simple synthetic method has been developed to prepare binary metal sulfides in situ. This technique demonstrated its versatility with oxides of various transition metals, rare-earth metals, and polysulfides. The method provides an effective, versatile method for engineering electrical structure and the potential to improve the performance of the OER process.

To study the real-space structure of the 2D sheets, a high-resolution transmission electron microscopy (TEM) was performed. Images showed folds that are characteristic of 2D sheets, and showed the presence of boron and sulfur.

XPS peaks have B: 2.1017, S 2p3/2: 7.1859. High-sensitivity XPS peaks were observed with a detection limit of 0.82 mgL-1. These peaks are of hybridized pz orbitals of boron and sulfur.

In a 2H-BS monolayer, a semiconducting behavior was observed, with a parabolic dispersion along the M-K line. The binding energy between the BS monolayer and H2 molecules was low, suggesting that pristine BS has a weak binding strength with H2.

Among the boron-based nanomaterials, the pristine BS monolayer has a unique property. It has a higher effective hole mass than the r-BS monolayer. Moreover, its effective electron mass is smaller than the r-BS monolayer. Therefore, the pristine BS monolayer has high conductivity and has a potential application as an n-type semiconductor.

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