	US 12,272,469 B2
	Conductive two-dimensional particle and method for producing the same
Hiroki Sakamoto, Nagaokakyo (JP); Masashi Koyanagi, Nagaokakyo (JP); and Akimaro Yanagimachi, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Feb. 28, 2023, as Appl. No. 18/175,981.
Application 18/175,981 is a continuation of application No. PCT/JP2021/031565, filed on Aug. 27, 2021.
Claims priority of application No. 2020-147676 (JP), filed on Sep. 2, 2020.
Prior Publication US 2023/0207152 A1, Jun. 29, 2023
Int. Cl. H01B 1/24 (2006.01); C01B 32/90 (2017.01)

CPC H01B 1/24 (2013.01) [C01B 32/90 (2017.08); C01P 2004/20 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01)]

8 Claims

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_mX_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 PO₄^3-, I, or SO₄^2-,

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.