Enhancing the anti-oxidation stability of vapor-crystallized arsenic crystals via introducing iodine

Removal of Antimony from Industrial Crude Arsenic by Vacuum Sublimation: Combination of Thermodynamics and Ab Initio Molecular Dynamics

“…There is no obvious difference between the surface and cross-section morphology, and it can be seen that with the increase of the supercooling degree, the XRD diffraction peaks of the product arsenic become smaller and smaller, and it gradually transforms from the crystalline state to the amorphous state. ; As grows along the (021) direction at 623 K, which is different from the growth of the parent material along the (003) direction, which is related to the pressure of the system during the growth process [29]. The temperature above 623 K shows a staggered, stepped, multifaceted surface, which is typical of crystalline As, and its growth mode is laminar growth.…”

From highly oriented bulk black arsenic phosphorus to well-crystallized exfoliated flakes with enhanced anti-oxidation: precise control upon chemical vapor transport

“…The highly oriented b-AsP is thoroughly exposed with the (010) facet exhibiting the minimum surface energy, which has much lower chemical reaction activity with oxygen. 41,42 In comparison, the b-AsP-Control sample has large amounts of other Miller index facets exposed to ambient conditions, and it would lead to higher oxidation reaction activity since these facets have higher surface energy.…”