Evaluation of Gelation Time Affecting the Self-Assembled Framework of Lignin Nanoparticle-Based Carbon Aerogels and Their Electrochemical Performances

• DOI: 10.1021/acsaem.3c01574
• Publication Date: 2023-10-27T18:12:48Z
• Authors: Qihang Cao; Rui Lou; Longhua Dong; Taoyuan Niu; Guodong Wei; Gaojin Lyu
• Keywords: Carbon fibers

Renewable biomass-derived carbon aerogels have emerged as an attractive option in the promising field of energy storage industry. Herein, lignin-resorcinol-formaldehyde cryogel (LRF) is successfully self-assembled into a 3D interlinked framework with beadlike chains by using lignin nanoparticles and green deep eutectic solvent cosolvent, resulting LRF-derived aerogel (LRFC) typical microporous structure subsequently prepared. We highlight effects gelation time on microstructures properties LRFC products. With capacity 284 F g–1 at 0.5 A remarkable cycle stability 97% 10 over 5000 cycles, as-prepared LRFC12 forming near gel point exhibits exceptional electrochemical performance. Furthermore, symmetric supercapacitor (SSC) constructed two electrodes displays impressive specific capacitance 193 maximum density 28.2 W h kg–1 power 262.6 kg–1.