Synthesis of ultra-thin graphene-like nanosheets from lignin based on evaporation induced self-assembly for supercapacitors

Sustainable Biochar Nanosheets Derived from Sweet Sorghum Residues via Superbase Pretreatment

“…Raman spectra (Figures E,F) revealed that the intensity of the D-band increased, while the intensity of the 2D-band decreased with increasing carbonization temperatures, indicating that the disorder and restacking degrees of biochar increased . These phenomena might be attributed to the decomposition of aromatic rings of lignin, the production of more defect sites at high temperatures, and the resulting structural collapse and layer-structural stacking. , The graphitization degrees of SC-D/K at 600–1000 °C remained higher than those of SC-800 even though they decreased. In addition, the surface areas and porosities of such biochar decreased with increasing carbonization temperatures due to the thermal-structural effects that caused the collapse of micropores under high temperatures (Figure S9 and Table S3).…”

Lignocellulosic biomass-based materials: a promising resource for viable energy storage

“…[233][234][235] Its structure offers increased power output due to reduced gearbox resistance and shorter ion distance, while its active center provides greater electrochemical capacit. [236][237][238] Liang et al 236 synthesized the extremely thin nanosheets resembling graphene with wave-like wrinkles were easily created using a sustainable method that involved walnut shell lignin as a carbon source, Zn 2+ ions as a cross-linker, and KHCO 3 as a chemical activator through evaporation-induced self-assembly (EISA) and chemical activation. The ultra-thin graphene-like nanosheets, aer being calcined at 900 °C (LGLN 900 ), demonstrated a specic capacitance of 388 F g −1 at 0.2 A g −1 in a three-electrode system using a 6 M KOH aqueous solution.…”

Valorisation of sulphonated lignin as a dye for the sustainable colouration of wool fabric using sustainable mordanting agents: enhanced colour yield, colourfastness, and functional properties

“…22 Currently, lignin is mainly used for the generation of heat and energy by combustion. 23 It was studied as a source of carbon bre, 24,25 graphene, 26 and porous carbon materials, 27 as a feedstock with limited success. Published literature shows that lignin works as a UVblocking and re retarding agent when added to thermoplastic composites.…”