Tracking nitrogen-to-nickel ratio and prevalent paramagnetic species in synthetic diamonds by electron spin resonance at 90 K

Article Chemistry, Inorganic & Nuclear

Diamond powders synthesized at high pressure and high temperature from graphite with nickel in the presence of aluminum. Applicability of methods for analyzing nitrogen concentration in diamonds

Fedor M. Shakhov et al.

Summary: This study synthesized two samples of microcrystalline diamond powders under high pressure and temperature conditions, calculated the nitrogen content in diamond crystals using different methods, and found that some commonly used equations may give overestimated values; Additionally, the addition of aluminum powder can reduce spontaneous nucleation, leading to a change in crystal size distribution.

JOURNAL OF SOLID STATE CHEMISTRY (2022)

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Article Chemistry, Multidisciplinary

Transition metal atoms grafted on the nanodiamonds surface: identification and guest-host spin-spin interactions

Ilya D. Gridnev et al.

Summary: This survey discusses recent achievements in the creation of a new type of material - nanodiamonds grafted with atoms of transition metals. It explores the structural features, scope, limitations, and potential applications of selected chelate complexes using density functional theory. Furthermore, the study investigates the location of copper ions relative to subsurface defects of detonation diamonds through the method of electron paramagnetic resonance (EPR).

MENDELEEV COMMUNICATIONS (2022)

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Article Chemistry, Multidisciplinary

Magnetic resonance tracking of copper ion fixation on the surface of carboxylated nanodiamonds from viewpoint of changes in carbon-inherited paramagnetism

Vladimir Yu Osipov et al.

Summary: In this study, it was found that the surface of nanodiamonds can be modified to form copper chelate complexes by copper ions. The concentration of these complexes can be monitored using electron paramagnetic resonance method through the signal width and shape.

MENDELEEV COMMUNICATIONS (2022)

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Review Chemistry, Multidisciplinary