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探索电场和OLi₃装饰对无机石烯SiC用于可逆储存的影响:一项第一原则调查

Amit Ramchiary¹, José A S Laranjeira², Paritosh Mondal¹

¹Department of Chemistry, Assam University, Silchar 788011, Assam, India.

|February 23, 2026

概括

超OLi3装饰的无机石墨烯SiC具有出色的储能能力 (10.93%). 这种材料显示出可逆储存的潜力,超过了DOE限制,并提供可调节的吸附能量.

科学领域:

材料科学材料科学材料科学
计算化学计算化学
储能储能储能储能储能储能

背景情况:

开发高效的存材料对于清洁能源技术至关重要.
2D材料的超性装饰提供了一条有希望的途径来增强气体吸附性质.
无机石墨烯碳化物 (IGP-SiC) 是一种新兴材料,具有功能化潜力.

研究的目的:

为了研究超OLi3装饰的IGP-SiC的气储存能力.
在功能化材料上探索的吸附机制和能量格局.
评估储存的热稳定性,可逆性和可调性.

主要方法:

使用GGA-PBE函数的第一原则计算.
开始分子动力学 (AIMD) 模拟用于热稳定性分析.
登图像推动弹性带 (CI-NEB) 方法用于扩散屏障计算.

主要成果:

OLi3与IGP-SiC的强结合,结合能量为-3.89 eV.
显著的储能量为10.93%的重量%,超过了DOE的6.5%的重量限制.
可通过电场调节的吸附能量,范围从-0.197到-0.657 eV/H2.
低扩散能量屏障为0.054 eV,表明良好的可逆性.

结论:

OLi3@IGP-SiC显示出作为可逆储材料的巨大潜力.
该材料的性能有利于实际的储存应用.
对电场调节的进一步研究可以为特定应用优化性能.

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