Seo, Seung-Deok Choi, Changhoon Kim, Byung-Kook Kim, Dong-Wan 2024-01-20T02:04:08Z 2024-01-20T02:04:08Z 2021-09-01 2017-02-01 0272-8842 https://pubs.kist.re.kr/handle/201004/123091 An activated carbon (AC) was synthesized via pyrolysis of waste green tea bag powder at 600 degrees C and subsequent activation of the carbonized powder by KOH at 800 degrees C. The AC powder exhibited an irregular particle size but a large specific surface area and pore volume of 2015 m(2) g(-1) and 0.727 cm(3) g(-1), respectively, which were significantly enhanced values compared with those of the original waste green tea bag powder. Furthermore, we tested the AC for use as a sulfur host for a lithium-sulfur battery cathode using cyclic voltammetry and galvanostatic charge/discharge cycling. English ELSEVIER SCI LTD ACTIVATED CARBON AMORPHOUS-CARBON AQUEOUS-SOLUTION ENERGY-STORAGE ION BATTERY ADSORPTION KOH TEMPERATURE GRAPHENE CATHODES Fabrication of highly porous carbon as sulfur hosts using waste green tea bag powder for lithium-sulfur batteries Article 10.1016/j.ceramint.2016.10.158 1 CERAMICS INTERNATIONAL, v.43, no.2, pp.2836 - 2841 CERAMICS INTERNATIONAL 43 2 2836 2841 scie scopus 000390732100167 2-s2.0-85005942659 Materials Science, Ceramics Materials Science Article ACTIVATED CARBON AMORPHOUS-CARBON AQUEOUS-SOLUTION ENERGY-STORAGE ION BATTERY ADSORPTION KOH TEMPERATURE GRAPHENE CATHODES Activated carbon Alkali activation Large surface area Sulfur host Waste green tea bag