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高性能化/石墨烯氧化物复合材料与硫酸盐改性,用于储能应用

Shamsiya Shams¹, B Bindhu¹, Adhigan Murali²

¹Department of Physics, Noorul Islam Centre for Higher Education Kumaracoil Thuckalay 629180 Tamilnadu India bindhu.krishna80@gmail.com.

Nanoscale advances

|January 31, 2025

概括

这项研究开发了硫酸盐功能化酸/氧化石墨烯 (STS-BN/GO) 复合材料用于储能. 优化的STBG1复合材料表现出高容量和出色的稳定性,使其成为下一代电池和超级电容器的理想选择.

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:

由于其独特的特性,二维 (2D) 混合材料,如化 (BN) 和氧化石墨烯 (GO),对于能源应用至关重要.
BN/GO复合材料提供了BN的强度和绝缘的组合与GO的导电性,非常适合电池,超级电容器和燃料电池.
现有的挑战包括可扩展的合成,均的分散,以及BN/GO混合动力中差的接口兼容性.

研究的目的:

为BN/GO复合材料开发一种可扩展的合成方法.
通过硫酸盐 (STS) 功能化增强BN/GO复合材料的电化学性能.
评估功能化BN/GO复合材料的性能,用于储能应用.

主要方法:

通过液相脱皮和超声波进行BN/GO复合材料的可扩展合成.
用硫酸盐 (STS) 功能化的BN-GO复合物 (STBG) 的制备.
使用FT-IR,拉曼,XRD,UV-vis,TGA,HR-TEM,TEM和SEM进行结构和形态表征.
电化学性能评估包括循环电量计 (CV) 和充放电循环.

主要成果:

纯净的BN显示效率微不足道;STS功能化 (STBN) 提高了效率至81.7%.
纳入STBG1和STBG2的BN/GO将效率提高到分别为89.3%和83.3%.
STBG1表现出极好的电容性行为,其特定电容量为115.82 F g-1在1 A g-1和89.3%的库伦比效率.
在3000个循环后,STBG1保持了87.3%的容量,显示出卓越的电荷转移和稳定性.

结论:

液相脱皮和STS功能化方法为高性能BN/GO复合材料提供了一个可扩展的途径.
由于其高容量和稳定性,STBG1显示出作为下一代储能系统的电极材料的巨大潜力.
开发的STBG复合材料为克服当前储能技术的局限性提供了一个有希望的解决方案.

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