Pt-Doped BC 的电子和分子吸附特性6N:一个 Ab-Initio 调查
Nada M Alghamdi1, Mohamed M Fadlallah2, Hind M Al-Qahtani3
1Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.
Nanomaterials (Basel, Switzerland)
|May 10, 2024
概括
兴奋剂增强了二维六边形碳化物 (h-BCN) 用于气体净化和旋转电子. 这项研究探讨了Pt-BC6NN.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 计算化学的计算化学
背景情况:
- 二维六边形碳化物 (h-BCN) 由于碳的结合而表现出独特的特性.
- 碳原子减少了化 (BN) 的带隙,提高了适用于各种应用的适用性.
研究的目的:
- 研究化BC6N (Pt-BC6N) 的结构,电子和磁性特性.
- 评估Pt-BC6N对小型气体分子 (NO,NO2,CO2,NH3) 的吸附潜力.
主要方法:
- 密度函数理论 (DFT) 的计算.
- 对原子位置 (B,N,C位) 和气体吸附位的系统分析.
- 对结构稳定的形成能量的评估.
主要成果:
- Pt-BC6N结构稳定,形成能量与原始BC6N相当.
- 在B/N位点的Pt兴奋剂产生稀释的磁性半导体;在C位点的兴奋剂产生更小的间隙半导体.
- 所有被兴奋的结构都表现出直接的带间隙.
- Pt兴奋剂显著增强了气体吸附:NO,NO2,NH3是化学吸收物,而CO2是物理吸收物.
- 气体吸附改变了 Pt-BC6N. 的电子和磁性特性.
结论:
- Pt-doped BC6N 显示了气体净化应用的潜力.
- 经过修改的电子和磁性特性表明,在旋转电子和气体传感器件中具有实用性.
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