Porous nanosheet-structured nickel oxide (NiO) films were directly prepared on conductive substrates using a cost-effective and simple one-pot solution method. By incorporating cobalt (Co) dopant, the growth of vertically aligned nanosheet was promoted. However, zinc (Zn)-doped NiO film had loose-packed nanosheet-structure with relatively low coverage surface substrate compared to Co-NiO films....

Potassium-ion batteries (PIBs) have been considered as a promising alternative to lithium-ion due their merits of high safety and low cost. Two-dimensional transition-metal chalcogenides (2D TMCs) with theoretical specific capacities unique layered structures proven be amenable materials for PIB anodes. However, some intrinsic properties including severe stacking unsatisfactory conductivity res...

Potassium ion batteries (KIBs) have received increasing popularity owing to their distinct advantages. We discover a hitherto unknown C4S nanosheet, novel carbon-based material with carbon and sulfur consisting of pentagons hexagons rings. The proposed nanosheet is highly stable dynamically, thermodynamically, mechanically, chemically, according first-principles calculations. Moreover, the grap...

A red phosphorus-graphene nanosheet hybrid is reported as an anode material for lithium-ion batteries. Graphene nanosheets form a sea-like, highly electronically conductive matrix, where the island-like phosphorus particles are dispersed. Benefiting from this structure and properties of phosphorus, the hybrid delivers high initial capacity and exhibits promising retention at 60 °C.

Size-controlled nanosheet colloids of fluorohectorite and fluortetrasilicic mica were prepared in high yield and their transitions to fluid liquid crystal (LC) phases with highly ordered lamellar structures were identified over a wide concentration range, which is a rare case for clay mineral systems.

zno nanostructures have been synthesized by a simple reflux method, using different ionic liquids, such as 1-benzyl-3-methylimidazolium bromide ([bzmim][br]), 1,1'-(1,4 phenylenebis (methylene)) bis (3-methyl-1h-imidazol-3-ium) bromide ([mm-1,4-dbzim2][br]2) and 1-phenacyl-3-methylimidazolium bromide ([pmim][br]), with different amount of sodium hydroxide in water. also the effect of reaction t...

density functional theory (dft) calculations were performed to investigate the properties of planar, tubular and conical forms of silicon nanostructures. the evaluated parameters including averaged bond lengths, binding energies, gap energies and dipole moments were then evaluated for the optimized models of study. the results indicated that the bond lengths between silicon atoms are different ...

in this study, an efficient and facile technique for preparing graphene oxide in suspension and powder forms was presented based on a modification on hummers' method followed by an additional ultrasonic process. the method involved the provision of graphene oxide from graphite by reaction of potassium permanganate and sulfuric acid with stabilizing the medium complex. furthermore, this stu...