An N,P,O-doped porous carbon electrode material derived from a lignin-modified chitosan xerogel for a supercapacitor

3D hierarchical porous N, O co‐doped carbon derived from the waste walnut shell via one‐step carbonization for high‐performance supercapacitor

“…The intensity ratio of G-band to D-band values (IG/ID) demonstrated the degree of graphitization in carbon materials. The value (IG/ID) of WSC-N/O-900 (1.32) was higher than WSC-900 (1.27), suggesting a decline in graphitization and a growth in carbon disorder after heteroatom-doped [39].…”

“…In the O 1s spectrum (Figure 2f), the peaks were observed at near 533, 536, and 532 eV, which can be attributed to CÀ OH, OÀ C=O, and C=O bonds, respectively. The numerous heteroatom functional groups can contribute rich pseudo-capacitance through reversible redox reactions [39]. Figure 2g illustrated the C, N, and O amounts in WSC-900 and WSC-N/O-900.…”

“…Extensive research has been carried out to enhance the electrochemical properties of supercapacitors. Jiang et al [39] introduced lignin into a mixed solution of chitosan and β-glycerophosphate by chemical activation, forming a gel network. The N, P, and O atoms were effectively retained in the porous carbon.…”

Facile Synthesis of Carbon-Based Inks to Develop Metal-Free ORR Electrocatalysts for Electro-Fenton Removal of Amoxicillin

“…The deconvolution results and the binding energy peaks are collected in Table 2. We use as a reference the 285.5 eV value to calibrate the C 1s spectra, and the peaks 284.6, 285.4, 286.8, 288.5 and 290.7 were attributed to C-C, C-O, C-O-C, C=O and CO 2 , respectively [37][38][39][40][41].…”

Superfast Synthesis of Carbon Xerogels

“…Due to their unique properties, CAs and CXs have obtained great attention in numerous fields that are decisive for the ecological transformation of the global economy. Their potential use was studied for electrochemical applications in fuel cells, , supercapacitors − or batteries, − and for thermal insulation materials, as catalyst supports, , and as highly efficient adsorbents . The high interest in these materials lies in the option to tune the material properties of meso- and microporous carbon for individual applications.…”