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- W3108108395 abstract "In this work, African maize cobs (AMC) were used as a rich biomass precursor to synthesize carbon material through a chemical activation process for application in electrochemical energy storage devices. The carbonization and activation were carried out with concentrated Sulphuric acid at three different temperatures of 600, 700 and 800 °C, respectively. The activated carbon exhibited excellent microporous and mesoporous structure with a specific surface area that ranges between 30 and 254 m2·g−1 as measured by BET analysis. The morphology and structure of the produced materials are analyzed through Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Boehm titration, X-ray Photoelectron Spectroscopy (XPS) and Raman Spectroscopy. X-ray photoelectron spectroscopy indicates that a considerable amount of oxygen is present in the materials. The functional groups in the activated carbon enhanced the electrochemical performance and improved the material’s double-layer capacitance. The carbonized composite activated at 700 °C exhibited excellent capacitance of 456 F g−1 at a specific current of 0.25 A g−1 in 6 M KOH electrolyte and showed excellent stability after 10,000 cycles. Besides being a low cost, the produced materials offer good stability and electrochemical properties, making them suitable for supercapacitor applications." @default.
- W3108108395 created "2020-12-07" @default.
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- W3108108395 date "2020-11-27" @default.
- W3108108395 modified "2023-10-11" @default.
- W3108108395 title "Modified Activation Process for Supercapacitor Electrode Materials from African Maize Cob" @default.
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- W3108108395 doi "https://doi.org/10.3390/ma13235412" @default.
- W3108108395 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7731031" @default.
- W3108108395 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33261206" @default.
- W3108108395 hasPublicationYear "2020" @default.
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