公开(公告)号：US20220177388A1

公开(公告)日：2022-06-09

申请号：US17598034

申请日：2020-03-16

Applicant: DAICEL CORPORATION

Inventor： Tomoaki MAHIKO ,  Yuto MAKINO ,  Akihiko TSURUI ,  Ming LIU ,  Masahiro NISHIKAWA

IPC: C06B25/00 ,  C01B32/15 ,  C01B32/26

Abstract: The present invention is to provide an explosive composition comprising at least one explosive and at least one heteroatom compound, the heteroatom compound comprising at least one heteroatom selected from the group consisting of B, P, Si, S, Cr, Sn, Al, Ge, Li, Na, K, Cs, Mg, Ca, Sr, Ba, Ti, Zr, V, Nb, Ta, Mo, W, Mn, Ni, Cu, Ag, Cd, Hg, Ga, In, Tl, As, Sb, Bi, Se, Te, Co, Xe, F, Y, and lanthanoids.

公开(公告)号：US20220185676A1

公开(公告)日：2022-06-16

申请号：US17598001

申请日：2020-03-16

Applicant: DAICEL CORPORATION

Inventor： Tomoaki MAHIKO ,  Yuto MAKINO ,  Akihiko TSURUI ,  Ming LIU ,  Masahiro NISHIKAWA

IPC: C01B32/26 ,  C09K11/59 ,  C09K11/63 ,  C09K11/70

Abstract: The present invention is to provide a heteroatom-doped nanodiamond, the heteroatom-doped nanodiamond being doped with at least one heteroatom, the heteroatom-doped nanodiamond satisfying criteria (i) and/or (ii) below: (i) a BET specific surface area being from 20 to 900 m2/g, and (ii) an average size of primary particles being from 2 to 70 nm.

公开(公告)号：US20230331559A1

公开(公告)日：2023-10-19

申请号：US17908338

申请日：2021-03-11

Applicant: DAICEL CORPORATION

Inventor： Akihiko TSURUI ,  Masahiro NISHIKAWA ,  Tomoaki MAHIKO ,  Ming LIU

IPC: C06B25/34 ,  C01B32/26 ,  C06B25/08

CPC classification number: C01B32/26 ,  C06B25/08 ,  C06B25/34

Abstract: Provided is an explosive composition for diamond synthesis by which diamond particles having a relatively large diameter can be produced. The explosive composition for diamond synthesis contains an explosive component, a carbon raw material that may be included as the explosive component, and diamond particles. Furthermore, the total proportion of the explosive component, the carbon raw material, and the diamond particles relative to the total amount of the explosive composition for diamond synthesis is 99 mass% or greater. The crystallite diameter of primary particles of the diamond particles as determined by the XRD method is preferably 100 nm or less.

公开(公告)号：US20250002355A1

公开(公告)日：2025-01-02

申请号：US18580434

申请日：2022-08-02

Applicant: DAICEL CORPORATION

Inventor： Akihiko TSURUI ,  Tomoaki MAHIKO ,  Masahiro NISHIKAWA ,  Ming LIU ,  Yuto MAKINO ,  Taro YOSHIKAWA

IPC: C01B32/26 ,  B82Y30/00 ,  B82Y40/00

Abstract: The present invention provides heteroatom-doped nanodiamond particles having a fluorescence emission peak derived from heteroatom-vacancy (Heteroatom-V) centers and satisfying conditions consisting of: (i) when 1 μL of a 1 mass % aqueous suspension of the heteroatom-doped nanodiamond particles is added dropwise onto a glass substrate, and fluorescence spectra are acquired for 101×101 spots using a microscopic Raman apparatus at a spatial resolution of 1 μm and in a sample range of 100 μm×100 μm, the percentage of the number of bright spots emitting fluorescence with a ZPL peak at ZPL±X nm (0≤X≤5) of the Heteroatom-V centers is 50% or greater; and (ii) an average size of primary particles is from 2 to 70 nm.

公开(公告)号：US20220331766A1

公开(公告)日：2022-10-20

申请号：US17598110

申请日：2020-03-16

Applicant: DAICEL CORPORATION

Inventor： Tomoaki MAHIKO ,  Yuto MAKINO ,  Akihiko TSURUI ,  Ming LIU ,  Masahiro NISHIKAWA

IPC: B01J3/08 ,  B01J3/06 ,  C01B32/15 ,  C01B32/28

Abstract: The present invention is to provide a method for producing nanodiamonds doped with a Group 14 element, the method comprising: detonating by exploding an explosive composition containing at least one explosive and at least one Group 14 element compound in a sealed container to obtain nanodiamonds doped with at least one Group 14 element selected from the group consisting of Si, Ge, Sn, and Pb, and removing the Group 14 element and/or oxide thereof by subjecting the nanodiamonds doped with a Group 14 element to an alkali treatment.