TY - JOUR
T1 - Poly(vinyldibenzothiophenesulfone)
T2 - Its Redox Capability at Very Negative Potential Toward an All-Organic Rechargeable Device with High-Energy Density
AU - Oka, Kouki
AU - Kato, Ryo
AU - Oyaizu, Kenichi
AU - Nishide, Hiroyuki
N1 - Funding Information:
This work was partially supported by Grants-in-Aids for Scientific Research (17H03072 and 18H03921) from MEXT, Japan. K.O. acknowledges the Leading Graduate Program in Science and Engineering, Waseda University, from MEXT, Japan. We thank Prof. B. Winther-Jensen, Dr. K. Hatakeyama-Sato, and Asst. Prof. T. Suga for their productive comments.
Funding Information:
This work was partially supported by Grants-in-Aids for Scientific Research (17H03072 and 18H03921) from MEXT, Japan.
Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2018/12/12
Y1 - 2018/12/12
N2 - Dibenzothiophenesulfone undergoes a two-electron reduction in a single step at a very negative potential of -1.8 V (versus Ag/AgCl) in organic electrolytes, due to the electron-withdrawing sulfone group and the stability of the resulting dianion. The heterogeneous electron-transfer rate constant for the reduction is approximately 10-1cm s-1, which is significantly faster than most redox-active species. The results presented herein suggest that dibenzothiophenesulfone is a potential candidate for use as an anode-active material with high-energy density. In addition, radical polymerization of vinyldibenzothiophenesulfone yielded poly(vinyldibenzothiophenesulfone) with a high molecular weight. A rechargeable device is fabricated with only organic compounds; poly(vinyldibenzothiophenesulfone) as the anode, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-substituted poly(methacrylate) as the cathode, and tetraethylammonium salt and organic solvent as the electrolyte. This device yields a maximum output voltage of 2.6 V in these organic devices, and the active component of the anode displays a very high-energy density of >500 mWh g-1.
AB - Dibenzothiophenesulfone undergoes a two-electron reduction in a single step at a very negative potential of -1.8 V (versus Ag/AgCl) in organic electrolytes, due to the electron-withdrawing sulfone group and the stability of the resulting dianion. The heterogeneous electron-transfer rate constant for the reduction is approximately 10-1cm s-1, which is significantly faster than most redox-active species. The results presented herein suggest that dibenzothiophenesulfone is a potential candidate for use as an anode-active material with high-energy density. In addition, radical polymerization of vinyldibenzothiophenesulfone yielded poly(vinyldibenzothiophenesulfone) with a high molecular weight. A rechargeable device is fabricated with only organic compounds; poly(vinyldibenzothiophenesulfone) as the anode, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-substituted poly(methacrylate) as the cathode, and tetraethylammonium salt and organic solvent as the electrolyte. This device yields a maximum output voltage of 2.6 V in these organic devices, and the active component of the anode displays a very high-energy density of >500 mWh g-1.
KW - organic electrodes
KW - rechargeable device
KW - redox polymers
KW - sulfone
UR - http://www.scopus.com/inward/record.url?scp=85054751991&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85054751991&partnerID=8YFLogxK
U2 - 10.1002/adfm.201805858
DO - 10.1002/adfm.201805858
M3 - Article
AN - SCOPUS:85054751991
SN - 1616-301X
VL - 28
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 50
M1 - 1805858
ER -