Facile synthesis of single-crystal nanoporous α-NiS nanosheets from Ni(OH)2 counterpart

One-Step Synthesis of Nickel Sulfides and Their Electrocatalytic Activities for Hydrogen Evolution Reaction: A Case Study of Crystalline h-NiS and o-Ni9S8 Nanoparticles

“…Nickel and sulfur elements can combine in different molar ratios, resulting in a myriad of crystalline phases and morphologies from nickel to sulfur-rich phases (e.g., Ni 3 S 4 , NiS 2 , Ni 7 S 6 , Ni 3 S 2 , and Ni 9 S 8 ) . For example, α-NiS (hexagonal) and β-NiS (rhombohedral) phases can coexist at a 1:1 molar ratio. However, obtaining a single phase is not trivial, and the formation of mixed crystalline phases may occur. , …”

Facile Synthesis of a Nickel Sulfide (NiS) Hierarchical Flower for the Electrochemical Oxidation of H2O2and the Methanol Oxidation Reaction (MOR)

“…[1][2][3][4][5][6][7][8] Nickel sulfide (NiS), has been extensively used for dye-sensitized solar cells, 9 supercapacitors, 10 lithium ion batteries, 11 electrocatalysts 12 and photocatalysts 13 due to its high electronic conductivity, low cost, and simple production. Although numerous NiS compounds have been prepared using various morphologies such as: nanoframes, 14 hollow spheres, 15 core-shell structure, 16 nanorods, 17 nanoflake arrays, 18 nanosheets, 19 urchin-like micro/nanostructures, 20 the synthesis of hierarchical flower-like NiS has been limited. [21][22][23] In this work, we report the facile synthesis of NiS hierarchical flower-like nanostructures using a solvothermal route.…”

Seed-induced synthesis of h-NiS single-crystalline hexagonal nanoparticles

“…Different sizes and shapes of NiS nanostructures have been reported in literature, such as spheres [10], pyramids [11], flowers [12], sheets [13], cubes [14] and thin films [15]. To achieve the aforementioned morphologies several synthesis methods have been employed, such as chemical vapor deposition [16], solvothermal [10,12], mechanical alloying [17], polyol method [18], solventless synthesis [19] and so on [20].…”