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Identification of sulfur gases (environmental pollution) by BeO fullerenes: A DFT study
Journal of Molecular Liquids ( IF 5.3 ) Pub Date : 2021-09-17 , DOI: 10.1016/j.molliq.2021.117528
Deyin Zhao 1 , Yinsen Li 2 , Mengyao Xu 1 , Zhimin Li 1 , Hao Zhang 2 , Li Yu 2
Affiliation  

The present study examines the possible applications of Be12O12 fullerene to detect SO2, CS2, H2S, and COS through density functional theory (DFT). These gases had an interaction stability order of SO2 > H2S > COS > CS2. The adsorption energy and electric dipole moment of the molecules seem to be correlated. It is believed that Be12O12 fullerene is a Ф-type electronic sensor for the detection of CS2 and SO2. The results revealed that SO2 and CS2, in the presence of H2S, could serve as Be12O12 fullerenes. Moreover, COS showed the ability to be employed as a electronic sensor. It is also capable of serving as an electronic sensor selectively operating between CS2 and SO2 to change variable electrical conductivity. However, it cannot be assumed to be Ф-type sensor of COS and H2S. The Be12O12 fullerene enjoys a rapid recovery (0.21–0.60 μs) in SO2 and CS2 desorption from the surface at ambient temperature. Therefore, it can be concluded to have the capability of operating in moist media.



中文翻译:

通过 BeO 富勒烯识别含硫气体(环境污染):DFT 研究

本研究通过密度泛函理论 (DFT)检验了 Be 12 O 12富勒烯在检测 SO 2、CS 2、H 2 S 和 COS 方面的可能应用。这些气体的相互作用稳定性顺序为 SO 2  > H 2 S > COS > CS 2。分子的吸附能和电偶极矩似乎是相关的。Be 12 O 12富勒烯被认为是一种用于检测CS 2和SO 2的Ф型电子传感器。结果表明,SO 2和CS 2,在H存在下2 S,可以作为Be 12 O 12富勒烯。此外,COS 显示出可用作电子传感器的能力。它还能够用作电子传感器,选择性地在 CS 2和 SO 2之间工作以改变可变的电导率。然而,不能假设它是 COS 和 H 2 S 的Ф 型传感器。Be 12 O 12富勒烯在环境温度下在 SO 2和 CS 2解吸中具有快速恢复(0.21–0.60 μs)。因此,可以断定具有在潮湿介质中操作的能力。

更新日期:2021-09-22
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