| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Sulfur-doped carbon nanoplates from waste coffee grounds precursors for use in supercapacitors |
| 초록 |
Supercapacitors are a promising electrochemical energy storage device because of their fast charge/discharge capability, cycle stability, variety of applications, and high power density. The electrode materials used in supercapacitors should have a high surface area, pores that match the size of ions and heteroatoms such as oxygen, nitrogen and phosphorus for pseudo-capacitive effects. Sulfur, like heteroatoms, leads to pseudo-capacitive effects by its lone-pair electrons and modifies pore size/structures in porous carbons. In this study, microporous carbon nanoplates (MP-CNP) were fabricated from waste coffee grounds through carbonization and chemical activation of KOH. And, S-doped MP-CNP were prepared by coating the surface of MP-CNP with sulfur through thermal evaporation of sulfur powders. We applied this material to electrode of supercapacitors and investigated its electrochemical performance. |
| 저자 |
박민홍1, 윤영수2, 이민의1, 이슬비1, 김나래1, 송민영1, 진형준1
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| 소속 |
1인하대, 2서울대 |
| 키워드 |
: Supercapacitors; Carbon nanoplates; Waste coffee grounds; Sulfur
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| E-Mail |
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