Chemical Structure Evolution of Thermally Altered Coal during the Preparation of Coal-Based Graphene and Division of Thermally Altered Zone: Based on FTIR and Raman.

However, the difference is that there is an abnormal jump in the graphene yield at 0.1 m, and the yield of coal-based graphene shows a decreasing trend within 2–6 m, while the reflectance tends to be stable in this distance range. 3.5 Division of the Thermally Altered Zone Combining A D1 / A G , which indicates the quality parameter of coal-based graphene (the higher the A D1 / A G ratio, the lower the order of samples and products), with the yield value ( W C ), can better divide the thermally altered zone of this study.

also in 47,180 other papers