A two-dimensional particle including: one or plural layers, the one or plural layers having a layer body represented by: M.sub.mX.sub.n, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, m is more than n but not more than 5, and a modifier or terminal T existing on a surface of the layer body, wherein T is at least one selected from a hydroxyl group, an amine group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom and a hydrogen atom; a metal cation is at least one cation selected from Na and K, and a content of Li in the two-dimensional particle is less than 0.002% by mass.

A conductive two-dimensional particle-containing composition including: a conductive two-dimensional particle of a layered material including one or a plurality of layers; a dispersion medium having a relative permittivity greater than that of water; and a fluorine element and an oxygen element on a surface of the conductive two-dimensional particle, wherein the one or plurality of layers includes a layer body represented by: M.sub.mX.sub.n, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is more than n and 5 or less, and a modifier or terminal T existing on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom.

A conductive two-dimensional particle-containing composition including: a conductive two-dimensional particle of a layered material including one or a plurality of layers; a dispersion medium having a relative permittivity greater than that of water; and a fluorine element and an oxygen element on a surface of the conductive two-dimensional particle, wherein the one or plurality of layers includes a layer body represented by: M.sub.mX.sub.n, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, and m is more than n and 5 or less, and a modifier or terminal T existing on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom.

The present invention relates to a method of making a mercury based compound, to a mercury based compound and to methods of using the mercury based compound and to uses of the mercury based compound.

The present invention relates to a method of making a mercury based compound, to a mercury based compound and to methods of using the mercury based compound and to uses of the mercury based compound.

Composite gel particles with an ammonium diuranate matrix phase and a phenolic resin phase incorporated within the ammonium diuranate matrix phase are produced from a first solution comprising uranyl nitrate, a phenol, and optionally formaldehyde, wherein the uranyl nitrate and the phenol are present in a ratio ranging from 2:1 to 25:1; and a second solution comprising hexamethylenetetramine and urea. The first solution and the second solution are mixed, and drops of the resulting mixture into a heated second liquid which is immiscible with the mixed solution. Heat from the second liquid causes the hexamethylenetetramine to decompose to form ammonia, which reacts with the uranyl nitrate to cause each of the drops to form an ammonium diuranate gel particle. The ammonium diuranate gel particles are collected. The ammonium diuranate gel particles include the phenolic resin phase within the ammonium diuranate matrix phase, where the phenolic resin phase is formed by reaction between the phenol and formaldehyde. The first solution may include uranyl nitrate, the phenol, and formaldehyde, and the formaldehyde and the phenol may react to form the phenolic resin phase prior to mixing the first solution and the second solution. The first solution may be free of formaldehyde, and heat from the second liquid may causes the hexamethylenetetramine to decompose to form formaldehyde in situ; so that the formaldehyde and the phenol react to form the phenolic resin phase while the ammonia reacts with the uranyl nitrate.

Composite gel particles with an ammonium diuranate matrix phase and a phenolic resin phase incorporated within the ammonium diuranate matrix phase are produced from a first solution comprising uranyl nitrate, a phenol, and optionally formaldehyde, wherein the uranyl nitrate and the phenol are present in a ratio ranging from 2:1 to 25:1; and a second solution comprising hexamethylenetetramine and urea. The first solution and the second solution are mixed, and drops of the resulting mixture into a heated second liquid which is immiscible with the mixed solution. Heat from the second liquid causes the hexamethylenetetramine to decompose to form ammonia, which reacts with the uranyl nitrate to cause each of the drops to form an ammonium diuranate gel particle. The ammonium diuranate gel particles are collected. The ammonium diuranate gel particles include the phenolic resin phase within the ammonium diuranate matrix phase, where the phenolic resin phase is formed by reaction between the phenol and formaldehyde. The first solution may include uranyl nitrate, the phenol, and formaldehyde, and the formaldehyde and the phenol may react to form the phenolic resin phase prior to mixing the first solution and the second solution. The first solution may be free of formaldehyde, and heat from the second liquid may causes the hexamethylenetetramine to decompose to form formaldehyde in situ; so that the formaldehyde and the phenol react to form the phenolic resin phase while the ammonia reacts with the uranyl nitrate.

A method for synthesizing high-purity ultrafine ZrCSiC composite powder is provided. The high-purity ultrafine ZrCSiC composite powder is prepared by utilizing zirconium silicate only or zirconium silicate with one or both of zirconium oxide or silica sol as a zirconium source and a silicon source material, utilizing sucrose or glucose as a carbon source material, and utilizing acrylamide monomer and N,N-methylene diacrylamide cross-linking agent as a gel material.

The invention is directed to a process for producing carbon nanofibers and/or carbon nanotubes, which process comprises pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is capable of forming carbides, in a substantially oxygen free, volatile silicon compound containing atmosphere, optionally in the presence of a carbon compound.

The present invention discloses a preparation method of a sulfonated two-dimensional titanium carbide nanosheet, which comprises the following steps of preparing two-dimensional titanium carbide by using aluminum atomic layers in hydrofluoric acid chemical stripping layer-shaped titanium aluminum carbide; preparing sulfanilic acid diazosalt; conducting a sulfonation reaction between the two-dimensional titanium carbide and the sulfanilic acid diazosalt to prepare the sulfonated two-dimensional titanium carbide nanosheet. The sulfonated two-dimensional titanium carbide nano material prepared through the present invention has good dispersity in water and common organic solvents, and a single-layer or few-layer sulfonated two-dimensional titanium carbide nanosheet with large size and high quality can be obtained after ultrasonic treatment is performed on a dispersion liquid. The preparation method has the characteristics of low production cost, easiness in obtaining raw materials, and simplicity and controllability during preparation.