碳纤维-花砂增强多功能电导混凝土用于超容量储能储能
Karnan Manickavasakam1, Mohammed A Al-Huri1, Khaled M Kharma2
1Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
研究人员使用碳纤维和石榴沙开发了导电混凝土 (ECC). 这种创新材料提供了增强的结构强度,并作为超级电容器中电化学能量存储的基板.
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
- 土木工程 土木工程是指土木工程.
背景情况:
- 传统混凝土缺乏导电性,限制了其在智能基础设施中的使用.
- 将储能直接整合到结构材料中,是可持续发展的一个关键挑战.
研究的目的:
- 开发一种带电混凝土 (ECC),具有集成的电化学能量储存能力.
- 优化ECC配方,以提高机械和电气性能.
- 为了评估ECC作为超级电容电极的基板的性能.
主要方法:
- 将碳纤维 (CF) 和阿尔曼丁石榴石砂融入波特兰水泥基质中.
- 用活性炭涂覆表面,以形成电极层.
- 使用FE-SEM进行表征,元素分析,电电阻,压力和屈曲强度测试.
- 基于ECC的超级电容器在基/Na2SO4电解质中的电化学性能评估.
主要成果:
- 优化的ECC实现了较低的电阻率 (15 Ω·cm) 和更好的机械强度 (39 MPa压力,13.4 MPa曲).
- 连续导电网络通过材料分析证实.
- 基于ECC的超级电容器表现出高的特定容量 (217 C g-1),能量密度 (17.36 Wh kg-1),以及良好的循环稳定性 (在5000个循环后保持78%).
结论:
- 碳纤维增强ECC是一种有前途的多功能材料,用于结构完整性和电化学能量储存.
- 这项技术为智能和可持续的基础设施系统提供了一条途径.
- 开发的ECC集成了结构和储能功能,为新型应用铺平了道路.
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