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Mesoporous Manganese Oxide/Lignin-Derived Carbon for High Performance of Supercapacitor Electrodes
| Content Provider | MDPI |
|---|---|
| Author | Rochmadi, Kusuma, Hersandy Dayu Prasetyo, Imam Ariyanto, Teguh |
| Copyright Year | 2021 |
| Description | This study explores the modification of lignin with surfactants, which can be used as a template to make mesoporous structures, and can also be used in combination with manganese oxide to produce manganese oxide/lignin-derived carbon. Organosolv extraction, using ethanol (70%) at 150 °C, was carried out to extract lignin from oil palm wood. Lignin was then mixed with Pluronic F-127, with and without $Mn(NO_{3})_{2}$, and then crosslinked with acidic formaldehyde, resulting in a carbon precursor-based modified lignin. Carbonization was carried out at 900 °C to produce lignin-derived carbon and manganese oxide/lignin-derived carbon. The characterization materials included Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope-energy dispersive X-ray (SEM-EDX) mapping, X-ray diffraction (XRD), and $N_{2}$-sorption analysis. FTIR curves displayed the vibration bands of lignin and manganese oxide. SEM images exhibited the different morphological characteristics of carbon from LS120% (lignin with a Pluronic surfactant of 120%) and LS120%Mn20% (lignin with a Pluronic of 120% and Mn oxide of 20%). Carbon LS120% (C-LS120%) showed the highest specific surface area of 1425 $m^{2}$/g with a mean pore size of 3.14 nm. The largest mean pore size of 5.23 nm with a specific surface area of 922 $m^{2}$/g was exhibited by carbon LS120%-Mn20% (C-LS120%-Mn20%). C-LS120%Mn20% features two phases of Mn oxide crystals. The highest specific capacitance of 345 F/g was exhibited by C-LS120%-Mn20%. |
| Starting Page | 7104 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules26237104 |
| Journal | Molecules |
| Issue Number | 23 |
| Volume Number | 26 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-11-24 |
| Access Restriction | Open |
| Subject Keyword | Molecules Paper and Wood Lignin Manganese Oxide Mesopores Carbon Kinetic Study Supercapacitor Surfactant |
| Content Type | Text |
| Resource Type | Article |
