Vacuum Electrochemistry Approach to Investigate Electrical Double‐Layer Capacitances of Ionic Liquid for Epitaxial Thin‐Film Electrodes of TiO2 and SrO on Niobium‐Doped (001)SrTiO3,ChemElectroChem

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Vacuum Electrochemistry Approach to Investigate Electrical Double‐Layer Capacitances of Ionic Liquid for Epitaxial Thin‐Film Electrodes of TiO2 and SrO on Niobium‐Doped (001)SrTiO3
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-07-03 , DOI: 10.1002/celc.202000849
Chika Takahashi ₁ , Mariko Kanai ₁ , Shingo Maruyama ₁ , Yuji Matsumoto ₁

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The Cover Feature illustrates a new potentiality of vacuum electrochemistry approach to investigate well‐defined ionic liquid/oxide interfaces when vacuum electrochemistry meets pulsed laser deposition (PLD). The electric double layer (EDL) capacitance of ionic liquid is carefully investigated under vacuum for oxide electrodes of not only single‐crystal SrTiO₃, but also the subsequently PLD‐grown SrO and anatase TiO₂ epitaxial films. The direct comparison of these EDL capacitance values allows us to find out that the EDL capacitance is quite sensitive to the kinds of oxide interfaces; the ionicity of the oxides is proposed as a possible key to the interpretation of the present finding. More information can be found in the Article by C. Takahashi et al.

中文翻译：

真空电化学法研究掺铌（001）SrTiO3上TiO2和SrO外延薄膜电极的离子液体电双层电容

封面功能说明了当真空电化学遇到脉冲激光沉积（PLD）时，真空电化学方法研究定义明确的离子液体/氧化物界面的新潜力。在真空下，不仅对单晶SrTiO _3的氧化物电极，而且对随后的PLD生长的SrO和锐钛矿型TiO ₂外延膜的氧化物电极，都仔细研究了离子液体的双电层（EDL）电容。这些EDL电容值的直接比较使我们发现，EDL电容对氧化物界面的种类非常敏感。建议将氧化物的离子性作为解释本发现的可能关键。可以在C. Takahashi等人的文章中找到更多信息。

更新日期：2020-08-03

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