Topic
Nafion
About: Nafion is a research topic. Over the lifetime, 9110 publications have been published within this topic receiving 320865 citations.
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TL;DR: In this article, the performance of double layer capacitors with high surface carbon and Nafion polymer electrolyte was evaluated by electrochemical impedance spectroscopy and the interpretation of the microporous structure of carbon material of the electrodes by impedance analysis is also discussed.
95 citations
TL;DR: In this paper, a hybrid membrane of Nafion/amino-silica (aminoSiO 2 ) for vanadium redox flow battery (VRB) systems is prepared via the sol-gel method to improve the selectivity of the Nafions membrane, to reduce the crossover of vanadium ions, and to decrease water transfer across the membranes.
95 citations
TL;DR: In this article, a highly sensitive and selective electrochemical (LCEC) detector was developed for the liquid chromatographic (LC) analysis of carbohydrates, based on the catalytic oxidation of various sugars in alkaline solutions at a pH greater than 13.
Abstract: A highly sensitive and selective electrochemical (LCEC) detector has been developed for the liquid chromatographic (LC) analysis of carbohydrates. This detector consists of copper/copper oxide particles dispersed in a Nafion films that is cast onto the surface of a glassy carbon electrode. The copper is electrochemically deposited into the Nafion by a constant potential method. The response of the detector is based on the catalytic oxidation of various sugars in alkaline solutions at a pH greater than 13
95 citations
TL;DR: In this paper, a polyaniline was made into a composite with Nafion and the resulting ternary composite electrode has a high specific capacitance of 475 F g −1 at 100mV −1 and 375 F g−1 at 1000mV−s −1 in the voltage range of −0.2 to 0.8 V versus Ag/AgCl.
95 citations
TL;DR: A novel, label-free amperometric biosensor for the detection of microRNA-155 based on the conductive self-assembled multilayer comprised of Nafion, thionine (Thi) and Pd nanoparticles was successfully prepared and presented high sensitivity, good stability and a broad linear response.
Abstract: In this paper, a novel, label-free amperometric biosensor for the detection of microRNA-155 based on the conductive self-assembled multilayer comprised of Nafion, thionine (Thi) and Pd nanoparticles was successfully prepared. Nafion was firstly dropped on to a bare glass carbon electrode. Then Thi was absorbed by the cation exchanger Nafion. Furthermore, a Pd nanoparticles layer which was used to immobilize target biomolecules was constructed by the amino group of Thi as linker. Moreover, the proposed biosensor showed excellent electrocatalytic activity towards H2O2 and enhanced the current response of the biosensor. Cyclic voltammetry was used for the characterization and electrochemical properties of the stepwise self-assembly process of the biosensor, and scanning electron microscopy was used for observing the microstructure of the modified film. Using microRNA-155 as a model, the resulting biosensor presented high sensitivity, good stability and a broad linear response from 5.6 to 5.6 × 105 pM with the detection limit of 1.87 pM under optimization of the assay conditions.
95 citations