Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , SE-75121 Uppsala, Sweden.
MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , 150001 Harbin, China.
ACS Appl Mater Interfaces. 2017 Dec 13;9(49):42420-42424. doi: 10.1021/acsami.7b13815. Epub 2017 Dec 1.
Nickel oxide thin films are of major importance as anodically coloring components in electrochromic smart windows with applications in energy-efficient buildings. However, the optical performance of these films degrades upon extended electrochemical cycling, which has hampered their implementation. Here, we use a potentiostatic treatment to rejuvenate degraded nickel oxide thin films immersed in electrolytes of LiClO in propylene carbonate. Time-of-flight elastic recoil detection analysis provided unambiguous evidence that both Li ions and chlorine-based ions participate in the rejuvenation process. Our work provides new perspectives for developing ion-exchange-based devices embodying nickel oxide.
氧化镍薄膜作为电致变色智能窗的阳极着色组件具有重要意义，可应用于节能建筑。然而，这些薄膜的光学性能在长时间电化学循环后会下降，这阻碍了它们的应用。在这里，我们使用恒电位处理来修复浸泡在含有 LiClO 的碳酸丙烯酯电解质中的氧化镍薄膜。飞行时间弹性反冲探测分析提供了明确的证据，表明锂离子和基于氯的离子都参与了修复过程。我们的工作为开发基于离子交换的氧化镍器件提供了新的视角。
