Provided is a method for preparing iridium oxide, comprising the steps of: preparing iridium chloride; mixing iridium chloride, a solvent and a pore control agent to prepare a dispersion; mixing the dispersion with an ion exchanging agent and performing ion exchange; removing the solvent from the dispersion to prepare a powder; and heat-treating the powder.

The present invention relates to a composition for forming conductive patterns and a resin structure having a conductive pattern, capable of forming a conductive micropattern on various polymer resin products or resin layers using a simplified process and exhibiting excellent heat dissipation characteristics. The composition for forming conductive patterns comprises: a polymer resin; a non-conductive metal compound represented by a specific chemical formula; and a heat-dissipating material, wherein a metal nucleus is formed from the non-conductive metal compound by the irradiation of electromagnetic waves.

The invention provides a process for exfoliating a 3-dimensional layered material to produce a 2-dimensional material, said process comprising the steps of mixing the layered material in a solvent to provide a mixture; applying energy, for example ultrasound, to said mixture, and removing the energy applied to the mixture, such that sedimentation of the 2-dimensional material out of solution as a weakly re-aggregated, exfoliated 2-dimensional material is produced. The invention provides a fast, simple and high yielding process for separating 3-dimensional layered materials into individual 2-dimensional layers or flakes, which do not strongly re-aggregate, without utilising hazardous solvents.

Provided is a layered alkali iridate and a layered iridic acid to be used for producing iridium oxide nanosheets, and an iridium oxide nanosheet. A layered alkali iridate with composition of M.sub.xIrO.sub.y.nH.sub.2O (where M is a monovalent metal, x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0.5 to 1.5), wherein M.sub.xIrO.sub.y.nH.sub.2O has a layered structure. The M is potassium, and the layered alkali iridate has diffraction peaks at 2 diffraction angles of 13.0 and 26.0. A layered iridic acid with a composition of H.sub.xIrO.sub.y.nH.sub.2O (where x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0 to 1), wherein H.sub.xIrO.sub.y.nH.sub.2O has a layered structure. This layered iridic acid has diffraction peaks at 2 diffraction angles of 12.3 and 24.6. A single crystalline iridium oxide nanosheet having a thickness of 3 nm or less.

An electrical conductor includes a substrate; and a first conductive layer disposed on the substrate and including a plurality of metal oxide nanosheets, wherein adjacent metal oxide nanosheets of the plurality of metal oxide nanosheets contact to provide an electrically conductive path between the contacting metal oxide nanosheets, wherein the plurality of metal oxide nanosheets include an oxide of Re, V, Os, Ru, Ta, Ir, Nb, W, Ga, Mo, In, Cr, Rh, Mn, Co, Fe, or a combination thereof, and wherein the metal oxide nanosheets of the plurality of metal oxide nanosheets have an average lateral dimension of greater than or equal to about 1.1 micrometers. Also an electronic device including the electrical conductor, and a method of preparing the electrical conductor.

An electrical conductor including: a first conductive layer including a plurality of metal nanowires; and a second conductive layer disposed on a surface of the first conductive layer, wherein the second conductive layer includes a plurality of metal oxide nanosheets, wherein in the first conductive layer, a metal nanowire of the plurality of metal nanowires contacts at least two metal oxide nanosheets of the plurality of metal oxide nanosheets, and wherein the plurality of metal oxide nanosheets includes an electrical connection between contacting metal oxide nanosheets.

A method for separating an amount of osmium from a mixture containing the osmium and at least one other additional metal is provided. In particular, method for forming and trapping OsO.sub.4 to separate the osmium from a mixture containing the osmium and at least one other additional metal is provided.

A method of making unit cell sized oxide particulates comprising preparing a water solution of a metal or ceramic salt or methanol solution of Pt, adding a 2-fold molar excess of KO.sub.2 to the water solution and forming a reaction solution, spinning down the reaction solution, and creating oxide nanoparticles.

The present invention provides a thin film coating comprising a metal oxide material, wherein the metal oxide material comprises Ir and metals M and M, wherein M and M are the same or different and are Ru, Rh, Pd, Os or Pt.

Proposed is a two-dimensional nanosheet, which can significantly improve catalytic efficiency by realizing a two-dimensional nanosheet structure with a high specific surface area including a metal material having an amorphous crystal structure as an electrochemical catalyst to fully utilize the characteristics of a metal oxide catalyst material with excellent electrical conductivity and, at the same time, which is easy for mass synthesis in manufacturing method due to its relatively simple manufacturing process, and is easy to realize ultra-thin and large-area.