开发用于超级电容器和传感应用的素凝增强型聚烯醇丰富电极材料
Weijie Lin1, Han Han1, Xilai Yan1
1College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, Fujian, China.
International journal of biological macromolecules
|June 7, 2024
概括
研究人员开发了一种基于性木质素 (AL) 的超级电容器 (SC) 的新型聚烯醇 (PPy) 水凝. 这种PPy@AL/PEGDGE材料提供了增强的导电性和电容性,改善了潜在传感器应用的SC性能和耐用性.
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
- 聚合物科学 聚合物科学
背景情况:
- 开发用于超级电容器 (SC) 的高导电性和耐久性天然聚合物基液凝仍然是一个重大挑战.
- 性红素 (AL) 作为先进的储能材料中的可持续成分具有潜力.
研究的目的:
- 报告一种简单的方法来制备基于性木质素 (AL) 的高导电PPy@AL/PEGDGE水凝,富含性木质素 (AL) 的多聚 (PPy).
- 调查PPy@AL/PEGDGE在超级电容器应用中的电化学性能和耐用性.
主要方法:
- 使用电化学沉积和化学蚀刻,创建具有空洞结构的PPy@AL/PEGDGE凝电极材料.
- 准备好的电极被组装成三明治形的SC,并使用循环电压测量 (CV),电电荷放电 (GCD) 和电化学阻抗光谱 (EIS) 来进行表征.
主要成果:
- PPy@AL/PEGDGE SCs的导电率为25.9 S·m−1和特定电容量为175 F·g−1,比纯 PPy 电极增加了127.4%.
- SCs的最大能量密度为23.06 Wh·kg-1和功率密度为5376 W·kg-1.1.
- 在1000个循环后,容量保留达到72.3%,超过纯 PPy SC (50%的保留).
结论:
- 与纯 PPy 相比,PPy@AL/PEGDGE 水凝表现出优越的电化学性能和稳定性.
- 这些发现强调了基于AL的导电水凝作为高性能超级电容器和传感器的先进电极材料的潜力.
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