Trzciński Konrad, Szkoda Mariusz, Nowak Andrzej P, Łapiński Marcin, Lisowska-Oleksiak Anna
Faculty of Chemistry, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.
Faculcty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.
Beilstein J Nanotechnol. 2019 Feb 15;10:483-493. doi: 10.3762/bjnano.10.49. eCollection 2019.
Composites based on the titania nanotubes were tested in aqueous electrolyte as a potential electrode material for energy storage devices. The nanotubular morphology of TiO was obtained by Ti anodization. TiO nanotubes were covered by a thin layer of bismuth vanadate using pulsed laser deposition. The formation of the TiO/BiVO junction leads to enhancement of pseudocapacitance in the cathodic potential range. The third component, the conjugated polymer PEDOT:PSS, was electrodeposited from an electrolyte containing the monomer EDOT and NaPSS as a source of counter ions. Each stage of modification and deposition affected the overall capacitance and allowed for an expansion of the potential range of electroactivity. Multiple charge/discharge cycles were performed to characterize the electrochemical stability of the inorganic-organic hybrid electrode. Capacitance values higher than 10 mF·cm were maintained even after 10000 galvanostatic cycles ( = 0.5 mA·cm).
基于二氧化钛纳米管的复合材料在水性电解质中作为储能装置的潜在电极材料进行了测试。通过钛阳极氧化获得了TiO的纳米管形态。使用脉冲激光沉积在TiO纳米管上覆盖了一层薄的钒酸铋。TiO/BiVO结的形成导致在阴极电位范围内赝电容增强。第三种成分，共轭聚合物PEDOT:PSS，从含有单体EDOT和作为抗衡离子源的NaPSS的电解质中电沉积。改性和沉积的每个阶段都影响了整体电容，并扩大了电活性的电位范围。进行了多次充放电循环以表征无机-有机混合电极的电化学稳定性。即使在10000次恒电流循环（= 0.5 mA·cm）后，电容值仍保持高于10 mF·cm 。
