Converting lignocellulosic biomass into graphene-based materials in a cost-effective approach remains a grant change. This study addresses this challenge by implementing direct laser writing (DLW) on lignocellulosic biomass for the synthesis of porous graphene (i.e., laser-induced graphene (LIG)). Deep eutectic solvent (DES) pretreatment facilitated the fabrication of bioplastics films from the lignocellulosic biomass (e.g., corns stover). The DES ChCl:OA was effective for yielding cellulose pulp as a suitable substrate for laser scribing with no surface treatment. Pseudolignin present in the pulp would contribute to the formation of LIG. Lignin <i>in situ</i> regenerated from the pretreatment slurry and further reposited on the CPFs appeared to further promote LIG formation. The obtained LIG showed 3D porous structure with well-defined graphene domains. The LIG-embedded CPFs were fabricated into on-chip supercapacitors and dopamine sensors, demonstrating good electrochemical properties in terms of energy storage and sensing. Overall, the present work demonstrated a feasible and scalable photothermal route based on direct laser writing toward mass production of lignocellulose-derived porous graphene materials.

Lignocellulose upgrading enabled by deep eutectic solvents for synthesis of porous graphene

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.