Hydrogen evolution reaction and electronic structure calculation of two dimensional bismuth and its alloys

Bismuthene nanosheets produced by ionic liquid assisted grinding exfoliation and their use for oxygen reduction reaction

“…DG O* should be zero for an efficient ORR reaction and hence DE ads should be in the vicinity of 0.33 eV. The calculated adsorption energies of O* on pristine monolayer of Bi was À3.9 eV, 25 which is far away from 0.33 eV, suggesting that the basal surface of Bi is inactive. Further supporting evidence is provided by theory calculations conducted recently by other groups, 26,27 which suggest that the edge sites of Bi are far more active than the basal plane for the adsorption and activation of various molecules.…”

Bismuth–nickel bimetal nanosheets with a porous structure for efficient hydrogen production in neutral and alkaline media

“…53 Meanwhile, the H prefer to adsorb on Bi sites due to the comparable electronegativity. 54 Consequently, the dissociation step of water molecules is accelerated (Volmer step: H 2 O + e − = H* + OH − ). The generated OH − desorbs from the surface Ni sites and enters the electrolyte solution.…”

“…53 Meanwhile, the H prefer to adsorb on Bi sites due to the comparable electronegativity. 54 Consequently, the dissociation step of water molecules is accelerated (Volmer step: but also decreased the excessive binding effect of H on alloy surface, which boosted the HER activity. 55 These results were consistent with the EIS analysis (Fig.…”

Arsenene as a promising sensor for the detection of H2S: a first-principles study

“…Researchers have recently investigated more and more sensing materials to detect toxic gases. 1–3 Two-dimensional (2D) atom-thick materials (graphene, 4 germanene, 5 silicene, 6 phosphorene, 7 and antimonene 8 ) are prospective nanometer gas sensors due to their unique characteristics and ultra-high specific surface area. 9,10 However, many two-dimensional materials cannot exhibit high sensitivity and selectivity and recover quickly simultaneously.…”