Abstract
In order to fully utilize industrial lignin, a comparative study was conducted on the properties of porous carbon electrodes prepared by activating different industrial lignin as precursors. The results revealed that carbon electrodes prepared with sodium lignosulfonate (CM-S) exhibited superior specific surface area (SSA) (1,593.5 m2 g−1) and pore volume (PV) (1.03 cm3 g−1) due to the largest relative molecular mass (Mn = 4,539, Mw = 7,290), which is greater than that prepared with alkali lignin (CM-A) and kraft lignin (CM-K), and displayed a well-developed micro-mesoporous macropore hierarchy which was feasible for the efficiency of electron mobility. The electrochemical properties of materials were evaluated, and CM-S showed a mass-specific capacitance of 201 F g−1 at 0.2 A g−1 current density, along with an impressive capacitance retention rate of 54.7 % at 10 A g−1 current density, which is more potential than CM-A and CM-K (specific capacitances: 100 F g−1 and 75 F g−1 respectively). Additionally, maximum energy and power density of CM-S were measured to be 6.98 W h kg−1 and 2306 W kg−1 with excellent retention rate of 95.5 % after 10,000 charge–discharge cycles at a current density of 5 A g−1. Comparatively, sodium lignosulfonate, compared with alkali lignin and kraft lignin, emerges as a more ideal precursor material for porous carbon electrode.
Funding source: Key Project of Research and Development Plan of Guangdong Province
Award Identifier / Grant number: 2022B0202020002
Funding source: Science and Technology Planning Project of Guangdong Province
Award Identifier / Grant number: 2021A1515010645
Funding source: National Key Research and Development Program of China
Award Identifier / Grant number: 2022YFD2101404
Acknowledgments
The authors are appreciative of the Science and Technology Planning Project of Guangdong Province (2021A1515010645), the supports of the National Key R&D Program (2022YFD2101404), and the Key Project of Research and Development Plan of Guangdong Province (2022B0202020002).
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Research ethics: The local Institutional Review Board deemed the study exempt from review.
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Author contributions: Yuyang Ma and Yanjie Yi conceived the idea and analyzed the experimental data; Yuyang Ma carried out the experiment and wrote the manuscript, Prof Yi Hou, Lirong Lei and Songqing Hu supervise the project. All authors discussed the results and contributed to the final manuscript.
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Competing interests: The authors state no conflict of interest.
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Research funding: As stated in the acknowledgments.
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Data availability: The raw data can be obtained on request from the corresponding author.
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Articles in the same Issue
- Frontmatter
- Chemical Pulping
- Evaluation of oxygen delignified fibers with high water absorbency, as a greener alternative to fully bleached fibers for tissue paper
- Effects of partial lignin extraction on rheological characteristics and combustion performance of high solids bamboo kraft black liquor
- A preliminary investigation of banana pseudo-stem (Musa cavendish) for pulp and paper production: morphology, chemical composition, FTIR, XRD and thermogravimetric analysis
- Sodium carbonate pulping of oil palm empty fruit bunches for paperboard production
- Mechanical Pulping
- Development of fibre properties in mill scale: high- and low consistency refining of thermomechanical pulp (part 2) – Importance of fibre curl
- Paper Technology
- Multi-objective optimization design of a circular core paper sandwich panel
- Paper Physics
- Effects of xylan-modified precipitated calcium carbonate filler on the properties of paper
- Influence mechanism of paper mechanical properties: numerical simulation and experimental verification based on a fiber network
- Enhancing the strength of tissue paper through pulp fractionation and stratified forming
- Paper Chemistry
- Effects of surfactants on the wettability of sodium propionate aqueous deacidification agent
- Coating
- Biobased nanocomposite coating of paper for packaging
- Printing
- Improving the lightfastness of paperboard prints with pearlescent pigments
- Packaging
- Preparation of environmentally friendly hydrophobic paper by coating method
- Recycling
- Hybrid solar drying of sludge from kraft pulp mills
- Chemical Technology/Modifications
- Effect of pre-hydrolysis on the dissolution of hardwood pulp in double salt ionic liquid
- Lignin
- Comparison of three different industrial lignin-based porous carbon electrodes for electrochemical applications
- UV–vis spectroscopy as a rapid method for evaluation of total phenolic hydroxyl structures in lignin
- Miscellaneous
- Paper fingerprint by forming fabric: analysis of periodic marks with 2D lab formation sensor and machine learning for forensic paper-identification
Articles in the same Issue
- Frontmatter
- Chemical Pulping
- Evaluation of oxygen delignified fibers with high water absorbency, as a greener alternative to fully bleached fibers for tissue paper
- Effects of partial lignin extraction on rheological characteristics and combustion performance of high solids bamboo kraft black liquor
- A preliminary investigation of banana pseudo-stem (Musa cavendish) for pulp and paper production: morphology, chemical composition, FTIR, XRD and thermogravimetric analysis
- Sodium carbonate pulping of oil palm empty fruit bunches for paperboard production
- Mechanical Pulping
- Development of fibre properties in mill scale: high- and low consistency refining of thermomechanical pulp (part 2) – Importance of fibre curl
- Paper Technology
- Multi-objective optimization design of a circular core paper sandwich panel
- Paper Physics
- Effects of xylan-modified precipitated calcium carbonate filler on the properties of paper
- Influence mechanism of paper mechanical properties: numerical simulation and experimental verification based on a fiber network
- Enhancing the strength of tissue paper through pulp fractionation and stratified forming
- Paper Chemistry
- Effects of surfactants on the wettability of sodium propionate aqueous deacidification agent
- Coating
- Biobased nanocomposite coating of paper for packaging
- Printing
- Improving the lightfastness of paperboard prints with pearlescent pigments
- Packaging
- Preparation of environmentally friendly hydrophobic paper by coating method
- Recycling
- Hybrid solar drying of sludge from kraft pulp mills
- Chemical Technology/Modifications
- Effect of pre-hydrolysis on the dissolution of hardwood pulp in double salt ionic liquid
- Lignin
- Comparison of three different industrial lignin-based porous carbon electrodes for electrochemical applications
- UV–vis spectroscopy as a rapid method for evaluation of total phenolic hydroxyl structures in lignin
- Miscellaneous
- Paper fingerprint by forming fabric: analysis of periodic marks with 2D lab formation sensor and machine learning for forensic paper-identification