Lithium storage in structurally tunable carbon anode derived from sustainable source [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 648.6 Housekeeping
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017
• Mô tả vật lý: Size: p. 134-142 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 263155
• Chủ đề: 1. 09 biomass fuels; 2. 25 energy storage; 3. 37 inorganic, organic, physical, and analytical chemistry; 4. Anode; 5. Biomass

Tóm tắt

 Here, a meticulous solid state chemistry approach has been developed for the synthesis of carbon anode from a sustainable source. The reaction mechanism of carbon formation during pyrolysis of sustainable feed-stock was studied in situ by employing Raman microspectroscopy. No Raman spectral changes observed below 160�C (thermally stable precursor) followed by color change, however above 280�C characteristic D and G bands of graphitic carbon are recorded. Derived carbon particles exhibited high specific surface area with low structural ordering (active carbons) to low specific surface area with high graphitic ordering as a function of increasing reaction temperature. Carbons synthesized at 600�C demonstrated enhanced reversible lithiation capacity (390 mAh g<
 sup>
 -1<
 /sup>
 ), high charge-discharge rate capability, and stable cycle life. On the contrary, carbons synthesized at higher temperatures (>
 1200�C) produced more graphite-like structure yielding longer specific capacity retention with lower reversible capacity.