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The Electrochemical Behavior of Silica and Activated Carbon Materials Derived from the Rice Husk Waste for Li-ion Cells by Askaruly, Kydyr (author);Korobeinyk, Alina V. (author);Azat, Seitkhan (author);Yeleuov, Mukhtar (author);Taurbekov, Azamat (author);Toshtay, Kainaubek (author);Tauanov, Zhandos (author);Su, Xintai (author) is a Materials Science article available to read on EtoBox.
What is The Electrochemical Behavior of Silica and Activated Carbon Materials Derived from the Rice Husk Waste for Li-ion Cells about?
In this work, an amorphous silica powders (1-SiO2 and 2-SiO2) and activated carbon with few-layer graphene were derived from rice husk using simple and efficient process. Synthesized samples were characterized by means of TGA SEM, XRD, XRF, nitrogen low-temperature adsorption/desorption, Raman, and EDAX. Rice husk calcination yields in 18 and 14 wt% of 1-SiO2 and 2-SiO2, correspondingly. Carbonization of rice husk followed by activation yielded about 11 wt% of activated carbon with large specific surface area (SBET = 3292 m2 g−1). Feasibility of resulting materials as anode materials for Li-ion batteries grounded on a high theoretical capacity of silica and high charge/discharge stability of activated carbon. We present here a 2-SiO2 material with large specific surface area of 980 m2 g−1, of high purity above 99 %, and large pore volume (1.20 cm3 g−1), which results in a reversible capacity of about 841 and 442 mAh g−1 (1st and 50th cycle) with coulombic efficiency higher than 95 %. Activated carbon demonstrated the highest initial discharge specific capacity and stable reversible capacity after 50 cycles as 1462 and 477 mAh g−1 (1st and 50th cycle), and coulombic efficiency highe
Who reads The Electrochemical Behavior of Silica and Activated Carbon Materials Derived from the Rice Husk Waste for Li-ion Cells?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Askaruly, Kydyr (author);Korobeinyk, Alina V. (author);Azat, Seitkhan (author);Yeleuov, Mukhtar (author);Taurbekov, Azamat (author);Toshtay, Kainaubek (author);Tauanov, Zhandos (author);Su, Xintai (author)
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Materials Science (Physical Sciences)