LAPSE:2023.26576
Published Article
LAPSE:2023.26576
Modified Activated Graphene-Based Carbon Electrodes from Rice Husk for Supercapacitor Applications
April 3, 2023
The renewable biomass material obtained from rice husk, a low-cost agricultural waste, was used as a precursor to synthesize a highly porous graphene-based carbon as electrode material for supercapacitors. Activated graphene-based carbon (AGC) was obtained by a two-step chemical procedure and exhibited a very high specific surface area (SSA) of 3292 m2 g−1. The surface morphology of the synthesized materials was studied using scanning and transmission electron microscopy (SEM, TEM). Furthermore, the AGC was modified with nickel hydroxide Ni(OH)2 through a simple chemical precipitation method. It was found that the most significant increase in capacitance could be reached with Ni(OH)2 loadings of around 9 wt.%. The measured specific capacitance of the pure AGC supercapacitor electrodes was 236 F g−1, whereas electrodes from the material modified with 9 wt.% Ni(OH)2 showed a specific capacitance of up to 300 F g−1 at a current density of 50 mA g−1. The increase in specific capacitance achieved due to chemical modification was, therefore 27%.
Record ID
Keywords
activated rice husk, few-layer graphene, nickel hydroxide, supercapacitor electrode
Suggested Citation
Yeleuov M, Seidl C, Temirgaliyeva T, Taurbekov A, Prikhodko N, Lesbayev B, Sultanov F, Daulbayev C, Kumekov S. Modified Activated Graphene-Based Carbon Electrodes from Rice Husk for Supercapacitor Applications. (2023). LAPSE:2023.26576
Author Affiliations
Yeleuov M: Department of Engineering Physics, Satbayev University, Almaty 050013, Kazakhstan; Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan
Seidl C: Faculty of Engineering & Natural Sciences, Johannes Kepler University Linz, 4040 Linz, Austria
Temirgaliyeva T: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Taurbekov A: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Prikhodko N: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Department of Management and Entrepreneurship, Almaty University of Power Engineering and Telecommunications, Almaty 050013, Kazakhstan
Lesbayev B: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Sultanov F: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Daulbayev C: Department of Engineering Physics, Satbayev University, Almaty 050013, Kazakhstan; Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi
Kumekov S: Department of Engineering Physics, Satbayev University, Almaty 050013, Kazakhstan
Seidl C: Faculty of Engineering & Natural Sciences, Johannes Kepler University Linz, 4040 Linz, Austria
Temirgaliyeva T: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Taurbekov A: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Prikhodko N: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Department of Management and Entrepreneurship, Almaty University of Power Engineering and Telecommunications, Almaty 050013, Kazakhstan
Lesbayev B: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Sultanov F: Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050000, Kazakhstan
Daulbayev C: Department of Engineering Physics, Satbayev University, Almaty 050013, Kazakhstan; Laboratory of Carbon Nanomaterials Synthesis in Flame, Institute of Combustion Problems, Almaty 050000, Kazakhstan; Faculty of Chemistry and Chemical Technology, al-Farabi
Kumekov S: Department of Engineering Physics, Satbayev University, Almaty 050013, Kazakhstan
Journal Name
Energies
Volume
13
Issue
18
Article Number
E4943
Year
2020
Publication Date
2020-09-21
Published Version
ISSN
1996-1073
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PII: en13184943, Publication Type: Journal Article
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LAPSE:2023.26576
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doi:10.3390/en13184943
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