A polythiophene derivative bearing TEMPO as a cathode material for rechargeable batteries

Synthesis and Charge–Discharge Properties of Organometallic Co­polymers of Ferrocene and Triphen­ylamine as Cathode Active Materials for Organic‐Battery Applications

“…[39,43a] Compared with the corresponding conjugated polymers bearing active nitroxide radicals in their main skeletons, nonconjugated architectures with pendant nitroxide side chains exhibit more stable electrochemical characteristics after quantitative redox reactions. [44] Furthermore, in the search for comprehensive organic cathode materials, heteroatombased organic molecules such as triphenylamine are liable to be reversibly oxidized to the corresponding positively charged species by removal of the nonbonding lone pair of electrons on the nitrogen atom; therefore, heteroatomic compounds have high potential as active electrode materials for rechargeable battery applications. In spite of their moderate theoretical specific capacities (less than 100 mA h g -1 ), poly(triphenylamine) derivatives have also been studied extensively in the energy storage field, and they show stable electrochemical behaviors.…”

Recent advances in conjugated polymer energy storage

“…75 Similar improvements were observed for a ferrocene functionalized triphenylamine polymer and a 2,2,6,6-tetramethylpiperidine-N-oxide functionalized PT. 190,191 Zhou et al recently reported capacity enhancement of 300% in polypyrroles doped with Fe(CN) 6 4À anions. 76 A lesser enhancement was also observed for PEDOT and PT.…”

Characterization and Electrocatalytic Activity of Poly(4-thienylacetyl-oxy-2,2,6,6-tetramethylpiperidin-1-yloxy) Prepared by Electrochemical Polymerization

“…At approximately 200 mV, the spectrum displays a characteristic positive-going band at 1362 cm −1 , which is attributed to asymmetric stretching vibration of N-O · . 7 Another important positive-going band at 1375 cm −1 is related to the O-H in-plane bending of benzyl alcohol. 15,16 It is known that the positive-going direction of IR bands is indicative of the loss of some reactants of the thin layer solution between p-ThAcOTEMPO electrode and CaF 2 window.…”

“…7 2-(Thiophen-3-yl)acetic acid (7.1 g, 50.0 mmol), 4-hydroxy-TEMPO (8.6 g, 50.0 mmol) and a small quantity of 4-dimethylaminopyridine (DMAP) were stirred in 200 mL of dichloroz E-mail: zhenlushen@zjut.edu.cn; limc@zjut.edu.cn methane at 0 • C. Then a solution of N,N -dicyclohexylcarbodiimide (DCC, 10.3 g, 50.0 mmol) in 100 mL of dichloromethane was added slowly to the above mixture. The resulting mixture was warmed to room temperature and stirred overnight.…”

“…5 Due to high conductivity and stability, polythiophene (p-Th) and its derivatives have received much attention recently and become potential materials in electrocatalysis, biosensors and battery. 6,7 Considering the advantages, the film of p-Th containing TEMPO side chain, such as poly(4-thienylacetyl-oxy-2,2,6,6-tetramethylpiperidin-1-yloxy) (p-ThAcOTEMPO), can be a potential material for selective oxidation of alcohols. As is known, it is easy and controllable to prepare conducting polymer on a substrate electrode by electropolymerization.…”