Rice Husk-Derived Mesoporous Silica Nanostructure for Supercapacitors Application: a Possible Approach for Recycling Bio-Waste into a Value-Added Product

We synthesized mesoporous SiO 2 nanomatrix using rice husks as a precursor through a facile thermal combustion process. XRD, FTIR, EDX, and TEM analyses were used to validate the produced mesoporous SiO 2 nanomatrix. Electrochemical measurements were used to determine the specific capacitance of mes...

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Bibliographic Details
Published in:SILICON 2022-10, Vol.14 (15), p.10129-10135
Main Authors: Araichimani, P., Prabu, K. M., Kumar, G. Suresh, Karunakaran, Gopalu, Surendhiran, S., Shkir, Mohd, AlFaify, S.
Format: Article
Language:English
Subjects:
Adsorption
Chemistry
Chemistry and Materials Science
Electrodes
Electrons
Energy storage
Environmental Chemistry
Fourier transforms
Inorganic Chemistry
Lasers
Materials Science
Nanoparticles
Nanostructure
Nanostructured materials
Nanotechnology
Optical Devices
Optics
Photonics
Physics
Polymer Sciences
Pore size
Precursors
Redox reactions
Research methodology
Rice
Science
Short Communication
Silicon dioxide
Supercapacitors
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Summary:We synthesized mesoporous SiO 2 nanomatrix using rice husks as a precursor through a facile thermal combustion process. XRD, FTIR, EDX, and TEM analyses were used to validate the produced mesoporous SiO 2 nanomatrix. Electrochemical measurements were used to determine the specific capacitance of mesoporous SiO 2 nanomatrix, and the results showed that the specific capacitances are 216, 204, 182, 163, 152, 142, 135, 133, 124.4, 124 F/g at current densities of 0.5, 1, 2, 4, 6, 8, 10, 12, 14, and 16 A/g. The benefit of impurities, as well as the large surface area and mesoporous structure of rice husk derived SiO 2 nanostructures, allow Faradaic redox reactions at the electrode surface and the resulting supercapacitive behavior. This research might lead to a low-cost technique of producing supercapacitor electrodes using rice husk-derived SiO 2 as a precursor.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-022-01699-3