Novel silicon‐contained lignin‐based carbon fibers derived from bamboo pulping black liquor with improved electrochemical performance for supercapacitors

Xu, Yongjian; Chen, Shenglin; Zhu, Meng; Liu, Yan

doi:10.1002/app.51321

Cited by 9 publications

(8 citation statements)

References 44 publications

(35 reference statements)

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“…To further explore the possibility of reducing the cost of carbon fiber, Xu et al tried using bamboo black liquor lignin containing more silicon to prepare LCFs. 149 As shown in Fig. 8e, in spite of the presence of high silicon compounds, the fiber morphology of the precursor fibers was also remarkably good.…”

Section: Applicationsmentioning

confidence: 83%

Recent advances in lignin-based carbon fibers (LCFs): precursors, fabrications, properties, and applications

Sun

Wen

et al. 2022

Green Chem.

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Section: Applicationsmentioning

confidence: 83%

Recent advances in lignin-based carbon fibers (LCFs): precursors, fabrications, properties, and applications

Sun

Wen

et al. 2022

Green Chem.

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“…The peak at 3,433 cm −1 was attributed to N-H in PAN, and O-H in the aromatic ring of lignin. In addition, the peaks of PAN at 2,937 and 2,243 cm −1 were attributed to C-H and C≡N, respectively ( Si et al, 2009 ; Xu et al, 2021c ). It was noted that the O-H peak increased with the increase of lignin content and had a trend of low-wavelength shift, and C≡N cyanine peaks gradually weakened.…”

Section: Resultsmentioning

confidence: 99%

Lignin-Based/Polypyrrole Carbon Nanofiber Electrode With Enhanced Electrochemical Properties by Electrospun Method

Kim

et al. 2022

Front. Chem.

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Tailoring the structure and properties of lignin is an important step toward electrochemical applications. In this study, lignin/polypyrrole (PPy) composite electrode films with microporous and mesoporous structures were designed effectively by electrostatic spinning, carbonization, and in situ polymerization methods. The lignin can not only reduce the cost of carbon fiber but also increase the specific surface area of composite films due to the removal of carbonyl and phenolic functional groups of lignin during carbonization. Besides, the compact three-dimensional (3D) conductive network structures were constructed with PPy particles densely coated on the lignin nanofibers, which was helpful to improve the conductivity and fast electron transfer during the charging and discharging processes. The synthesized lignin carbon fibers/PPy anode materials had good electrochemical performance in 1 M H2SO4 electrolyte. The results showed that, at a current density of 1 A g−1, the lignin carbon nanofibers/PPy (LCNFs/PPy) had a larger specific capacitance of 213.7 F g−1 than carbon nanofibers (CNFs), lignin carbon nanofibers (LCNFs), and lignin/PPy fiber (LPAN/PPy). In addition, the specific surface area of LCNFs/PPy reached 872.60 m2 g−1 and the average pore size decreased to 2.50 nm after being coated by PPy. Therefore, the independent non-binder and self-supporting conductive film is expected to be a promising electrode material for supercapacitors with high performance.

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“…This can reduce the heat exchange load of alkali recovery boiler and improve the treatment capacity of black liquor [15][16][17][18] . In addition, it has a certain desilication effect when separating lignin due to the adsorption of silicon by lignin, which is helpful for overcoming the "Silicon Interference" 19,20 .…”

Section: Rheological Properties and Volumetric Isothermal Expansivity...mentioning

confidence: 99%

Rheological properties and volumetric isothermal expansivity of bamboo kraft black liquor with high solids content and low lignin content

Chen

Guo

et al. 2023

Sci Rep

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In this study, a certain percentage of lignin in original bamboo kraft black liquor (BKBL) was separated, and the residual BKBL with low lignin content was expected to be fed into the alkali recovery boiler to reduce the heat transfer load of the alkali recovery boiler. With the decrease in lignin content, the rheological properties/volumetric isothermal expansivity (VIE) of BKBL change. When the lignin content was 70% remaining in the original BKBL, the viscosity of BKBL with low lignin content is close to that of the passivated BKBL at the same solids content, the dynamic viscoelasticity is superior, and the VIE decreases by 57.2%. When the amount of desilication agent is 1.5%, the viscosity of BKBL with low lignin content did not change much, and the VIE increased sharply and was 62.7% higher than that of the passivated BKBL. Therefore, the combination of partial lignin separation process and sodium aluminate desilication process can effectively improve the ability of alkali recovery boiler to deal with BKBL and reduce the influence of “silicon interference”.

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Novel silicon‐contained lignin‐based carbon fibers derived from bamboo pulping black liquor with improved electrochemical performance for supercapacitors

Cited by 9 publications

References 44 publications

Recent advances in lignin-based carbon fibers (LCFs): precursors, fabrications, properties, and applications

Recent advances in lignin-based carbon fibers (LCFs): precursors, fabrications, properties, and applications

Lignin-Based/Polypyrrole Carbon Nanofiber Electrode With Enhanced Electrochemical Properties by Electrospun Method

Rheological properties and volumetric isothermal expansivity of bamboo kraft black liquor with high solids content and low lignin content

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