Trapping precursor-level functionalities in hierarchically porous carbons prepared by a pre-stabilization route for superior supercapacitors

Unraveling the role of solvent–precursor interaction in fabricating heteroatomic carbon cathode for high-energy-density Zn-ion storage

“…Three obvious characteristic peaks at 284.4, 285.3, and 288.1 eV at primitive condition (I) originate from C-C, C-OH, and COOH species. [68][69][70] From 1.8 to 0 V in the discharge process, both C-OH and COOH signals undergo a continuous decrease. In the charge process from 0 to 1.8 V, they exhibit a contrary trend, indicating the highly reversible chemical reactions between the C-OH/COOH groups and Zn ions during the whole discharge/charge cycles.…”

Hierarchical hollow-tubular porous carbon microtubes prepared via a mild method for supercapacitor electrode materials with high volumetric capacitance

“…6). [50][51][52] It is clear that the sharp steep curves in the low P/P 0 (below 0.1) region indicate the characteristics of the monolayer adsorption of micropores. The hysteresis loop at P/P 0 in the range of 0.45-0.9 indicates the existence of a large amount of mesopores in the structure.…”

Lignin-based composites for high-performance supercapacitor electrode materials

“…Due to the excellent specific capacitance value of LS/PANI, the pseudocapacitance effect of N/O groups in acidic electrolyte is stronger than that in alkaline electrolyte, 48 so its electrochemical performance in 1 mol L −1 H 2 SO 4 aqueous electrolyte was investigated ( Fig. 15 ).…”