Gao Nan, Cao Jinwei, Wang Chen, Gao Zhaoqing, Li Ruofan, Ding Guoxin, Ma Haitao, Wang Yunpeng, Zhang Liping
School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China.
Key Laboratory of Coastal Environment and Resources of Zhejiang Province (KLaCER), School of Engineering, Westlake University, Hangzhou 310024, China.
Langmuir. 2022 Jan 11;38(1):164-173. doi: 10.1021/acs.langmuir.1c02304. Epub 2021 Dec 21.
In this study, electrodeposition combined with anodization was employed to prepare a nanoporous tin oxide film on a pure copper substrate. It was found that annealing temperature played a critically significant role in regulating the crystallinity, pore size, and contents of different oxidation states of the anodized tin oxide film to affect the electrochemical performance. The study verified that SnO films treated by optimized annealing at 500 °C with precisely controlling the nanoporous morphology and crystallinity displayed competitive specific capacitance at an appropriate ratio of Sn to Sn. A maximum specific capacitance of 86.2 mF/cm could be achieved at this temperature, and the capacitance retention rate still exceeded 90% even after 8000 charge-discharge cycles. With properly designed annealing treatment, we implemented tin film anodization to obtain an optimized electrode with significantly enhanced electrochemical performance, which shows a promising application in the electrochemical field to prepare electrodes.
在本研究中，采用电沉积与阳极氧化相结合的方法在纯铜基底上制备了纳米多孔氧化锡薄膜。研究发现，退火温度在调节阳极氧化氧化锡薄膜的结晶度、孔径和不同氧化态的含量以影响其电化学性能方面起着至关重要的作用。该研究证实，在500℃下进行优化退火处理，并精确控制纳米多孔形态和结晶度的SnO薄膜，在适当的Sn与Sn比例下表现出具有竞争力的比电容。在此温度下可实现最大比电容86.2 mF/cm，即使经过8000次充放电循环，电容保持率仍超过90%。通过合理设计的退火处理，我们实现了锡膜阳极氧化，以获得具有显著增强电化学性能的优化电极，这在电化学领域制备电极方面显示出广阔的应用前景。
