在基于强度合的黑和ReS2纳米复合材料的3D打印微型超级电容器中诱导定向电荷移位
Jiale Ge1, Jian Meng1, Leiqian Zhang1
1The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|February 23, 2024
概括
研究人员开发了一种使用硫化 (ReS2) 在黑 (E-BP) 上的新接口合策略,用于先进的微型超级电容器. 这种方法提高了电极性能和稳定性,为下一代储能设备铺平了道路.
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
- 纳米技术 纳米技术
背景情况:
- 接口合策略对于提高能量存储中的活性电极材料性能至关重要.
- 在纳米复合材料中为稳定的电化学过程设计强大的接口仍然是一个重大挑战.
- 脱皮黑 (E-BP) 和硫化 (ReS2) 是电化学应用的有希望的材料.
研究的目的:
- 在纳米复合材料中开发强大的合接口,使用表轴生长策略.
- 在剥皮黑 (E-BP) 纳米片上合成硫化 (ReS2).
- 研究接口环境及其对电化学性能的影响.
主要方法:
- 在E-BP纳米片上合成ReS2的Epitaxial生长策略.
- 光谱分析包括X射线光电子光谱 (XPS) 和X射线吸收光谱 (XAS).
- 密度函数理论 (DFT) 计算以了解离子吸附和界面效应.
主要成果:
- 对于3D打印的E-BP@ReS2微型超级电容器,在0.1 mA cm-2时达到47.3 mF cm-2的特定电容.
- 在2000个周期中表现出极好的长期循环能力,容量保留89.2%.
- 由于强大的接口合,DFT的计算显示了显著减少的H+吸附能量 (-2.17 eV).
结论:
- 表轴生长策略成功地在E-BP和ReS2.2之间建立了强大的界面联系.
- 增强的接口合显著提高了电化学性能和结构稳定性.
- 开发的E-BP@ReS2纳米复合材料是先进的微型超级电容器的一个有希望的材料.
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