@article{ART002130014},
author={Min Hong Park and Young Soo Yun and Cho Se Youn and Na Rae Kim and Hyoung‑Joon Jin},
title={Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors},
journal={Carbon Letters},
issn={1976-4251},
year={2016},
volume={19},
pages={66-71}
TY - JOUR
AU - Min Hong Park
AU - Young Soo Yun
AU - Cho Se Youn
AU - Na Rae Kim
AU - Hyoung‑Joon Jin
TI - Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors
JO - Carbon Letters
PY - 2016
VL - 19
IS - null
PB - Korean Carbon Society
SP - 66
EP - 71
SN - 1976-4251
AB - The development of nanostructured functional materials derived from biomass and/or waste is of growing importance for creating sustainable energy-storage systems. In this study, nanoporous carbonaceous materials containing numerous heteroatoms were fabricated from waste coffee grounds using a top-down process via simple heating with KOH. The nanoporous carbon nanosheets exhibited notable material properties such as high specific surface area (1960.1 m2 g–1), numerous redox-active heteroatoms (16.1 at% oxygen, 2.7 at% nitrogen, and 1.6 at% sulfur), and high aspect ratios (>100). These unique properties led to good electrochemical performance as supercapacitor electrodes. A specific capacitance of ~438.5 F g–1 was achieved at a scan rate of 2 mV s–1, and a capacitance of 176 F g–1 was maintained at a fast scan rate of 100 mV s–1. Furthermore, cyclic stability was achieved for over 2000 cycles.
KW - waste coffee grounds;supercapacitor;pyrolysis;carbon nanosheet;nanoporous carbon
DO -
UR -
ER -
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim and Hyoung‑Joon Jin. (2016). Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors. Carbon Letters, 19, 66-71.
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim and Hyoung‑Joon Jin. 2016, "Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors", Carbon Letters, vol.19, pp.66-71.
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim, Hyoung‑Joon Jin "Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors" Carbon Letters 19 pp.66-71 (2016) : 66.
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim, Hyoung‑Joon Jin. Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors. 2016; 19 66-71.
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim and Hyoung‑Joon Jin. "Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors" Carbon Letters 19(2016) : 66-71.
Min Hong Park; Young Soo Yun; Cho Se Youn; Na Rae Kim; Hyoung‑Joon Jin. Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors. Carbon Letters, 19, 66-71.
Min Hong Park; Young Soo Yun; Cho Se Youn; Na Rae Kim; Hyoung‑Joon Jin. Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors. Carbon Letters. 2016; 19 66-71.
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim, Hyoung‑Joon Jin. Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors. 2016; 19 66-71.
Min Hong Park, Young Soo Yun, Cho Se Youn, Na Rae Kim and Hyoung‑Joon Jin. "Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors" Carbon Letters 19(2016) : 66-71.
