A Solvent-Free Synthesis of Lignin-Derived Renewable Carbon with Tunable Porosity for Supercapacitor Electrodes
- Univ. of Tennessee, Knoxville, TN (United States). The Bredesen Center for Interdisciplinary Research and Graduate Education; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Carbon and Composite Group, Materials Science and Technology Division
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Carbon and Composite Group, Materials Science and Technology Division
- Glucan Biorenewables LLC, Madison, WI (United States)
Synthesis of multiphase materials from lignin, a biorefinery coproduct, offers limited success owing to the inherent difficulty in controlling dispersion of these renewable hyperbranched macromolecules in the product or its intermediates. Effective use of the chemically reactive functionalities in lignin, however, enables tuning morphologies of the materials. Here in this study, we bind lignin oligomers with a rubbery macromolecule followed by thermal crosslinking to form a carbon precursor with phase contrasted morphology at submicron scale. The solvent-free mixing is conducted in a high-shear melt mixer. With this, the carbon precursor is further modified with potassium hydroxide for a single-step carbonization to yield activated carbon with tunable pore structure. A typical precursor with 90 % lignin yields porous carbon with 2120 m2 g-1 surface area and supercapacitor with 215 F g-1 capacitance. Lastly, the results show a simple route towards manufacturing carbon-based energy-storage materials, eliminating the need for conventional template synthesis.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1474617
- Alternate ID(s):
- OSTI ID: 1462134
- Journal Information:
- ChemSusChem, Vol. 11, Issue 17; ISSN 1864-5631
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Polyhydroxyalkanoate‐Modified Bacterium Regulates Biomass Structure and Promotes Synthesis of Carbon Materials for High‐Performance Supercapacitors
|
journal | March 2019 |
Self‐Supported, Sulfate‐Functionalized Nickel Hydroxide Nanoplates with Enhanced Wettability and Conductivity for Use in High‐Performance Supercapacitors
|
journal | October 2019 |
Transforming lignin into porous graphene via direct laser writing for solid-state supercapacitors
|
journal | January 2019 |
Similar Records
Performance and Economic Analysis of Organosolv Softwood and Herbaceous Lignins to Activated Carbons as Electrode Materials in Supercapacitors
A tough and sustainable fiber-forming material from lignin and waste poly(ethylene terephthalate)