TEMPO-substituted polyacrylamide for an aqueous electrolyte-typed and organic-based rechargeable device

Natsuru Chikushi, Hiroshi Yamada, Kenichi Oyaizu, Hiroyuki Nishide

研究成果: Article

13 引用 (Scopus)

抄録

A hydrophilic radical polymer, poly(2,2,6,6-teteramethylpiperidinyloxyl-4- yl acrylamide) (PTAm), was synthesized via oxidation of the corresponding precursor polymer, poly(2,2,6,6-teteramethylpiperidine-4-yl acrylamide). Electrochemical properties of the PTAm layer were characterized in three aqueous electrolytes of sodium chloride (NaCl), sodium tetrafluoroborate (NaBF 4), and sodium hexafluorophosphate (NaPF 6) to optimize its activity as an organic cathode. The counter anion species significantly affected the capacity and the cycle performance of the PTAm layer. The PTAm layer in the presence of BF 4 -1 displayed quantitative redox capacity beyond 1 μm layer thickness and maintained the discharging capacity of 110 mAh g -1 (97% vs. the calculated capacity) even after 1000 cycle charging/discharging, which could be ascribed to its appropriate affinity to the aqueous electrolyte without any dissolution into the electrolyte. A totally organic-based rechargeable cell was fabricated using PTAm and poly(N-4,4′-bipyridinium-N-decamethylene dibromide) as the cathode and the anode, respectively, and the aqueous electrolyte of NaBF 4. The cell gave a plateau voltage at 1.2 V both on charging and discharging and an excellent charging/discharging cyclability of >2000 with high coulombic efficiency of >95%.

元の言語English
ページ(範囲)822-829
ページ数8
ジャーナルScience China Chemistry
55
発行部数5
DOI
出版物ステータスPublished - 2012 5

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Electrolytes
Acrylamide
Polymers
Cathodes
Sodium
Electrochemical properties
Sodium Chloride
Anions
Anodes
Dissolution
Oxidation
polyacrylamide
TEMPO
Electric potential

ASJC Scopus subject areas

  • Chemistry(all)

これを引用

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abstract = "A hydrophilic radical polymer, poly(2,2,6,6-teteramethylpiperidinyloxyl-4- yl acrylamide) (PTAm), was synthesized via oxidation of the corresponding precursor polymer, poly(2,2,6,6-teteramethylpiperidine-4-yl acrylamide). Electrochemical properties of the PTAm layer were characterized in three aqueous electrolytes of sodium chloride (NaCl), sodium tetrafluoroborate (NaBF 4), and sodium hexafluorophosphate (NaPF 6) to optimize its activity as an organic cathode. The counter anion species significantly affected the capacity and the cycle performance of the PTAm layer. The PTAm layer in the presence of BF 4 -1 displayed quantitative redox capacity beyond 1 μm layer thickness and maintained the discharging capacity of 110 mAh g -1 (97{\%} vs. the calculated capacity) even after 1000 cycle charging/discharging, which could be ascribed to its appropriate affinity to the aqueous electrolyte without any dissolution into the electrolyte. A totally organic-based rechargeable cell was fabricated using PTAm and poly(N-4,4′-bipyridinium-N-decamethylene dibromide) as the cathode and the anode, respectively, and the aqueous electrolyte of NaBF 4. The cell gave a plateau voltage at 1.2 V both on charging and discharging and an excellent charging/discharging cyclability of >2000 with high coulombic efficiency of >95{\%}.",
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T1 - TEMPO-substituted polyacrylamide for an aqueous electrolyte-typed and organic-based rechargeable device

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AU - Yamada, Hiroshi

AU - Oyaizu, Kenichi

AU - Nishide, Hiroyuki

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N2 - A hydrophilic radical polymer, poly(2,2,6,6-teteramethylpiperidinyloxyl-4- yl acrylamide) (PTAm), was synthesized via oxidation of the corresponding precursor polymer, poly(2,2,6,6-teteramethylpiperidine-4-yl acrylamide). Electrochemical properties of the PTAm layer were characterized in three aqueous electrolytes of sodium chloride (NaCl), sodium tetrafluoroborate (NaBF 4), and sodium hexafluorophosphate (NaPF 6) to optimize its activity as an organic cathode. The counter anion species significantly affected the capacity and the cycle performance of the PTAm layer. The PTAm layer in the presence of BF 4 -1 displayed quantitative redox capacity beyond 1 μm layer thickness and maintained the discharging capacity of 110 mAh g -1 (97% vs. the calculated capacity) even after 1000 cycle charging/discharging, which could be ascribed to its appropriate affinity to the aqueous electrolyte without any dissolution into the electrolyte. A totally organic-based rechargeable cell was fabricated using PTAm and poly(N-4,4′-bipyridinium-N-decamethylene dibromide) as the cathode and the anode, respectively, and the aqueous electrolyte of NaBF 4. The cell gave a plateau voltage at 1.2 V both on charging and discharging and an excellent charging/discharging cyclability of >2000 with high coulombic efficiency of >95%.

AB - A hydrophilic radical polymer, poly(2,2,6,6-teteramethylpiperidinyloxyl-4- yl acrylamide) (PTAm), was synthesized via oxidation of the corresponding precursor polymer, poly(2,2,6,6-teteramethylpiperidine-4-yl acrylamide). Electrochemical properties of the PTAm layer were characterized in three aqueous electrolytes of sodium chloride (NaCl), sodium tetrafluoroborate (NaBF 4), and sodium hexafluorophosphate (NaPF 6) to optimize its activity as an organic cathode. The counter anion species significantly affected the capacity and the cycle performance of the PTAm layer. The PTAm layer in the presence of BF 4 -1 displayed quantitative redox capacity beyond 1 μm layer thickness and maintained the discharging capacity of 110 mAh g -1 (97% vs. the calculated capacity) even after 1000 cycle charging/discharging, which could be ascribed to its appropriate affinity to the aqueous electrolyte without any dissolution into the electrolyte. A totally organic-based rechargeable cell was fabricated using PTAm and poly(N-4,4′-bipyridinium-N-decamethylene dibromide) as the cathode and the anode, respectively, and the aqueous electrolyte of NaBF 4. The cell gave a plateau voltage at 1.2 V both on charging and discharging and an excellent charging/discharging cyclability of >2000 with high coulombic efficiency of >95%.

KW - aqueous electrolyte

KW - organic radical molecule

KW - polyacrylamide

KW - rechargeable battery

KW - redox polymer

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