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Pseudocapacitive performance of binder-free nanostructured TT-Nb2O5/FTO electrode in aqueous electrolyte

机译:粘合剂无纳米结构TT-NB2O5 / FTO电极在水性电解质中的假胶质性能

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摘要

TT-Nb2O5 nanoparticles grown on electrically conducting fluorine-doped tin oxide (FTO) glass were successfully synthesized by a facile one-pot hydrothermal method at low temperature. The as-prepared nanostructured TT-Nb2O5/FTO was directly used as the working electrode to investigate its pseudocapacitive performance without any binder or conductive agent, which exhibited a high specific capacitance of 322 F g(-1) at a current density of 3.68 A g(-1), excellent rate capability (258.1 F g(-1) at a high scan rate of 100 mV s(-1) is about 91.6% of that at 5 mV s(-1)), and good cycling stability (the capacitance retention is 74.3% after 3000 cycles). More importantly, it is the first time electrochemical measurements for Nb2O5 electrode in aqueous electrolyte, which are low-cost and easy to operate, have been carried out.
机译:在低温下通过容易单罐水热法在导电氟掺杂氧化锡(FTO)玻璃上生长的TT-NB2O5纳米颗粒。 作为制备的纳米结构TT-NB2O5 / FTO被用作工作电极,以研究其无粘合剂或导电剂的假偶联性能,其在电流密度为3.68a的电流密度显示出322 f g(-1)的高比电容 G(-1),优异的速率能力(258.1f g(-1),高扫描速率为100 mv s(-1)的约91.6%,在5 mv s(-1)),且良好的循环稳定性 (3000次循环后电容保留为74.3%)。 更重要的是,已经进行了含水电解质中Nb2O5电极的第一次电化学测量,这是低成本且易于操作的电极。

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