Quantitative Analysis of Graphene Sheet Content in Wood Char Powders during Catalytic Pyrolysis

Biobased Functional Carbon Materials: Production, Characterization, and Applications—A Review

“…However, this occurs only within the basal plane since the graphene layers are stalked together due to van der Waals forces, which explains the anisotropic character of graphite. Bio-based microporous materials possess microcrystallites of graphene sheets; however, the graphene sheets are randomly oriented (turbostratic) and their content and size depend on the production process [ 76 , 96 ].…”

A Process for Preparing High Graphene Sheet Content Carbon Materials from Biochar Materials

“…This phenomenon is attribute to the disintegration of cellulose during the acid pretreatment process and the formation of graphitic crystals and oxide layers (2θ degree = 29°) in the GSCCM samples. The graphene sheet content of produced GSCCM samples can be characterized quantitatively, according to the author's previous report [12]. Results are shown in Table 1, the GSCCMs, through the two-step processes from biochars, have an increment on the graphene sheet content of 16% to 28% more than that of the two-step heat-treatment-only process from woody biomass [15].…”

“…The results have shown that the most used secondary pyrolysis temperature at 1400°C has made graphene content carbon materials; the content of the graphene sheet was measured at 62.47%. In another work, we have found that the production of graphene content carbon from woody materials created a surface Raman quenching phenomenon [12,13] (see Figures S2 and S3). In this study, we would like to report a modified process for directly preparing high graphene sheet content carbon materials (GSCCMs) from biochar materials.…”

Study on the Ability of Using Biomass Graphene Sheets Oxide as Superconductive Electronic Storage Devices under Magnetic Force

“…In the future we can determine the storage electron-current amount by the used volume of graphene oxide solution rather than the area of electrodes. In our previously publications, we have demonstrated a feasible pathway for preparing graphene sheets carbon materials from biomass derived biochar [1][2][3][4][5]. In this short communication, we would like to report an unpredicted magneto voltaic occurs in biomass derived graphene sheets oxide solution.…”