和酸盐的电化学行为与添加的钻石电极
Rene Pfeifer1, Ondrej Szabo1, Dhananjay K Sharma1,2
1Institute of Physics, Czech Academy of Sciences, Cukrovarnicka 10, Prague 6 162 00, Czech Republic.
概括
添加钻石 (BDD) 薄膜通过扩大电化学稳定性窗口 (ESW) 来增强能源设备. 最佳的BDD特性,如特定的颗粒大小和兴奋剂,最大限度地提高ESW,酸 (KNO3) 电解质变化的影响最小.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 酸 (KNO3) 对集中式太阳能发电塔 (CSPT) 系统和离子电池至关重要.
- 树形成和电化学稳定窗口 (ESW) 是能源设备的关键挑战.
研究的目的:
- 为了研究添加钻石 (BDD) 薄膜和KNO3溶液如何影响电化学稳定性.
- 优化BDD薄膜特性,以提高能源设备的效率和容量.
主要方法:
- 检查的BDD薄膜特性:颗粒大小,兴奋剂水平,导电性和C-sp3/sp2比.
- 分析KNO3电解质特性:度和pH值.
- 在不同的条件下测量了电化学稳定窗口 (ESW).
主要成果:
- 一个BDD薄膜的B/C比为2000ppm,粒径为1.75μm,C-sp3/sp2比为0.31,产生了最宽的ESW3.5V.
- 电解质度和pH的KNO3对ESW的影响最小.
- NO3的离子导电性随着度的增加而增加,在超和溶液中达到204mS cm-1的峰值.
结论:
- BDD电影提供了一个有希望的方法来扩大ESW的先进能源设备.
- 优化的BDD膜特性对于最大限度地提高电化学性能至关重要.
- 了解电解质相互作用对于进一步改进储能和CSPT系统至关重要.
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