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.

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.

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.

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.