Abstract
A novel flat, wood-based carbon material with heterogeneous pores, referred to as flat lignocellulosic carbon material (FLCM), was successfully fabricated by carbonizing samples of the softwood Picea jezoensis (Ezomatsu or Jezo spruce, a Japanese conifer). Simultaneous improvements of the specific surface area of the FLCM and the affinity of electric double-layer capacitor (EDLC) for electrolyte solvents were achieved by vacuum ultraviolet/ozone (VUV/O3) treatment. The specific surface area of the VUV/O3-treated FLCM showed a 50% increase over that of the original FLCM. The spectra measured by X-ray photoelectron spectroscopy (XPS) indicated that the number of O-C=O (carboxyl or ester) bonds increased, whereas the number of C-C bonds decreased. Additionally, the feasibility of using the FLCM as a self-supporting electrode in EDLCs was examined by measuring the electrochemical properties in a three-electrode system. The FLCM was confirmed as an appropriate self-supporting EDLC electrode material without warps and cracks. In addition, the FLCM can be used without any binder. Realization of FLCM-based EDLC electrodes with bendability, an area of several tens of square centimeters, and no risk of warp or crack formation, were indicated. Thus, FLCMs present a fascinating class of self-supporting carbon electrode materials for EDLCs.
| Original language | English |
|---|---|
| Article number | 325 |
| Journal | Prehospital and Disaster Medicine |
| Volume | 1497 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2013 Nov 7 |
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Keywords
- C
- carbonization
- surface reaction
ASJC Scopus subject areas
- Emergency
- Emergency Medicine
Cite this
Fabrication and basic investigation of flat lignocellulosic carbon material for self-supporting electrodes in electric double-layer capacitors. / Funabashi, Tsubasa; Sato, Masamichi; Kitajima, Masao; Shoji, Shuichi; Mizuno, Jun.
In: Prehospital and Disaster Medicine, Vol. 1497, No. 1, 325, 07.11.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication and basic investigation of flat lignocellulosic carbon material for self-supporting electrodes in electric double-layer capacitors
AU - Funabashi, Tsubasa
AU - Sato, Masamichi
AU - Kitajima, Masao
AU - Shoji, Shuichi
AU - Mizuno, Jun
PY - 2013/11/7
Y1 - 2013/11/7
N2 - A novel flat, wood-based carbon material with heterogeneous pores, referred to as flat lignocellulosic carbon material (FLCM), was successfully fabricated by carbonizing samples of the softwood Picea jezoensis (Ezomatsu or Jezo spruce, a Japanese conifer). Simultaneous improvements of the specific surface area of the FLCM and the affinity of electric double-layer capacitor (EDLC) for electrolyte solvents were achieved by vacuum ultraviolet/ozone (VUV/O3) treatment. The specific surface area of the VUV/O3-treated FLCM showed a 50% increase over that of the original FLCM. The spectra measured by X-ray photoelectron spectroscopy (XPS) indicated that the number of O-C=O (carboxyl or ester) bonds increased, whereas the number of C-C bonds decreased. Additionally, the feasibility of using the FLCM as a self-supporting electrode in EDLCs was examined by measuring the electrochemical properties in a three-electrode system. The FLCM was confirmed as an appropriate self-supporting EDLC electrode material without warps and cracks. In addition, the FLCM can be used without any binder. Realization of FLCM-based EDLC electrodes with bendability, an area of several tens of square centimeters, and no risk of warp or crack formation, were indicated. Thus, FLCMs present a fascinating class of self-supporting carbon electrode materials for EDLCs.
AB - A novel flat, wood-based carbon material with heterogeneous pores, referred to as flat lignocellulosic carbon material (FLCM), was successfully fabricated by carbonizing samples of the softwood Picea jezoensis (Ezomatsu or Jezo spruce, a Japanese conifer). Simultaneous improvements of the specific surface area of the FLCM and the affinity of electric double-layer capacitor (EDLC) for electrolyte solvents were achieved by vacuum ultraviolet/ozone (VUV/O3) treatment. The specific surface area of the VUV/O3-treated FLCM showed a 50% increase over that of the original FLCM. The spectra measured by X-ray photoelectron spectroscopy (XPS) indicated that the number of O-C=O (carboxyl or ester) bonds increased, whereas the number of C-C bonds decreased. Additionally, the feasibility of using the FLCM as a self-supporting electrode in EDLCs was examined by measuring the electrochemical properties in a three-electrode system. The FLCM was confirmed as an appropriate self-supporting EDLC electrode material without warps and cracks. In addition, the FLCM can be used without any binder. Realization of FLCM-based EDLC electrodes with bendability, an area of several tens of square centimeters, and no risk of warp or crack formation, were indicated. Thus, FLCMs present a fascinating class of self-supporting carbon electrode materials for EDLCs.
KW - C
KW - carbonization
KW - surface reaction
UR - http://www.scopus.com/inward/record.url?scp=84908618081&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84908618081&partnerID=8YFLogxK
U2 - 10.1557/opl.2013.325
DO - 10.1557/opl.2013.325
M3 - Article
AN - SCOPUS:84908618081
VL - 1497
JO - Prehospital and Disaster Medicine
JF - Prehospital and Disaster Medicine
SN - 1049-023X
IS - 1
M1 - 325
ER -