Quantitative comparison of surface properties of enzymatic hydrolysis lignin before and after degradation

Guo-jie, Zhao; Liu, Xiaole; Ren, Shixue; Tan, Wenying; Gui-zhen, Fang

doi:10.1016/j.indcrop.2018.09.020

Cited by 5 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…24 EHL contains a variety of oxygen-containing functional groups, such as hydroxyl, carbonyl, and ether bonds. 25 These oxygen-containing functional groups have certain acidity which can be etched off by ammonia; meanwhile, the nitrogen atom from ammonia remains on the surface of porous carbons. In addition, the porous carbon obtained from EHL as a precursor could retain abundant oxygen functional groups, which enhances the wettability of the porous carbons with electrolytes and improve its pseudocapacitance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enzymatic Hydrolysis Lignin-Derived Porous Carbons through Ammonia Activation: Activation Mechanism and Charge Storage Mechanism

Jian

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The low energy density and low cost performance of electrochemical capacitors (ECs) are the principal factors that limit the wide applications of ECs. In this work, we used enzymatic hydrolysis lignin as the carbon source and an ammonia activation methodology to prepare nitrogen-doped lignin-derived porous carbon (NLPC) electrode materials with high specific surface areas. We elucidated the free radical mechanism of ammonia activation and the relationship between nitrogen doping configurations, doping levels, and preparation temperatures. Furthermore, we assembled NLPC∥NLPC symmetric ECs and NLPC∥Zn asymmetric ECs using aqueous sulfate electrolytes. Compared with the ECs using KOH aqueous electrolyte, the energy densities of NLPC∥NLPC and NLPC∥Zn ECs were significantly improved. The divergence of charge storage characteristics in KOH, Na 2 SO 4 , and ZnSO 4 electrolytes were compared by analyzing their area surface capacitance. This work provides a strategy for the sustainable preparation of lignin-derived porous carbons toward ECs with high energy densities.

show abstract

Section: Introductionmentioning

confidence: 99%

“…EHL contains a variety of oxygen-containing functional groups, such as hydroxyl, carbonyl, and ether bonds . These oxygen-containing functional groups have certain acidity which can be etched off by ammonia; meanwhile, the nitrogen atom from ammonia remains on the surface of porous carbons.…”

Section: Introductionmentioning

confidence: 99%