Conductive two-dimensional particle and method for producing the same
A conductive two-dimensional particle of a layered material comprising one layer or one layer and plural layers, wherein the layer includes a layer body represented by: M m X n , and a modifier or terminal T exists 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, or a hydrogen atom, M of the layer is bonded to at least one selected from the group consisting of PO 4 3− , I, or SO 4 2− , the total content of chlorine and bromine is 1,500 ppm by mass or less, and an average value of major diameters of two-dimensional surfaces of the conductive two-dimensional particles is 1.0 μm or more.
1. A conductive two-dimensional particle of a layered material comprising one layer or one layer and plural layers, wherein the layer includes a layer body represented by:
M m X 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 exists 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, or a hydrogen atom,
the M is also bonded to at least one selected from the group consisting of PO 4 3- , I, or SO 4 2- ,
a total content of chlorine and bromine is 1,500 ppm by mass or less, and
an average value of major diameters of two-dimensional surfaces of the conductive two-dimensional particles is 1.0 μm or more.
2. The conductive two-dimensional particle according to claim 1 , wherein the conductive two-dimensional particle satisfies at least one of:
a phosphorus atom content of 0.20 mass % to 14 mass %,
an iodine atom content of 1.0 mass % to 60 mass %, or
a sulfur atom content of 0.03 mass % to 18 mass %.
3. The conductive two-dimensional particle according to claim 2 , wherein an average value of a thicknesses of the conductive two-dimensional particles is 5 nm or less.
4. The conductive two-dimensional particle according to claim 1 , wherein an average value of a thicknesses of the conductive two-dimensional particles is 5 nm or less.
5. A conductive film comprising the conductive two-dimensional particle according to claim 1 .
6. A conductive paste comprising the conductive two-dimensional particle according to claim 1 .
7. A conductive composite material comprising:
the conductive two-dimensional particle according to claim 1 ; and
a resin.
8. The conductive composite material according to claim 7 , wherein the resin is one or more polymers selected from the group consisting of water-soluble polyurethane, polyvinyl alcohol, sodium alginate, an acrylic acid-based water-soluble polymer, polyacrylamide, polyaniline sulfonic acid, and nylon.