ANALYSIS OF THE SURFACE OF COAL SHAVINGS USING ATOMIC FORCE MICROSCOPY TO DETERMINE THE STRUCTURE

Abstract

Goal. Determining the structure of coal by the method of chip surface analysis. Research object: properties and structure of coal of different brands. Research methods: using atomic force microscopy to determine the structure of coal by analyzing the chip surface. Scientific novelty. A comparison of the cleavage surfaces of the dense fractions of the examined coal grades DH and K shows that the supramolecular structure changes almost equally in both grades with a change in density. Both brands contain supramolecular nanostructural formations, the distribution of layers of which has a structured "dendrid-like" appearance when the density changes. Research data confirm the possibility of obtaining semi-coke from low-metamorphosed coal, which corresponds to the indicators of high-quality PUT.