Open AccessComposition and Chemical State of Nanopowder Particles Obtained by Grinding Natural Diamond and by Detonation Synthesis
Author(s) -
П. П. Шарин,
А. В. Сивцева,
В. И. Попов
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1079/5/052023
Subject(s) - detonation , x ray photoelectron spectroscopy , diamond , chemical state , carbon fibers , chemical composition , materials science , chlorine , grinding , sulfur , chemical engineering , oxidation state , oxygen , nitrogen , metal , explosive material , analytical chemistry (journal) , metallurgy , chemistry , organic chemistry , composite material , composite number , engineering
The initial composition and chemical state of primary particles of nanopowders obtained by grinding natural diamond and detonation synthesis have been investigated using X-ray photoelectron spectroscopy. It is shown that the primary particles of both nanopowders contain mainly carbon and oxygen atoms. Signals from nitrogen, sulfur, chlorine, and metal atoms do not exceed the noise level in the photoelectron spectrum. It has been found that in the primary particles of detonation synthesis nanopowder and nanopowder obtained by grinding natural diamond, the proportion of carbon atoms is ~ 46.5 and ~ 67.8% in the sp 1 -hybridization state, ~ 26.8 and ~ 17.4% in sp 2 – hybridization, and ~ 26.7 and ~ 14.7%, respectively, in the composition of oxygen-containing functional groups.