Surface engineering of MoS2 nanosheets by silver (Agn) nanoclusters to enhance the adsorption and gas sensing performance: a DFT study

IF 2.6 4区 材料科学 Q3 CHEMISTRY, MULTIDISCIPLINARY Journal of Nanoparticle Research Pub Date : 2025-03-04 DOI:10.1007/s11051-025-06263-9
Rafid Jihad Albadr, Waam Mohammed Taher, Mariem Alwan, Soumya V. Menon, Mamata Chahar, Rajni Verma, Abhayveer Singh, M. Ravi Kumar, Mahmood Jasem Jawad, Hiba Mushtaq, Muhamed alfouroon
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Abstract

In this work, the interactions of ethylene oxide (C2H4O) molecule over the MoS2 monolayers functionalized with different clusters of Ag atoms were investigated using density functional theory outlook. Our obtained results confirmed that Ag cluster–modified MoS2 nanosheets had excellent adsorption capacity for ethylene oxide molecules. The variations in the electronic properties were explained based on the band structure and charge density redistribution analyses. Our charge density distribution calculations represented the large collection of atomic charges above the adsorbed molecules. By plotting the projected density of states, we described the interaction occurred between the oxygen atoms of ethylene oxide molecules and Ag clusters. Adsorption distance, energies, angles, and other structural factors were also calculated for describing the results. Therefore, based on our results, we can propose the Ag cluster–modified MoS2 systems as effective ethylene oxide (C2H4O) detection devices for real phase applications.

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用银(Agn)纳米团簇对二硫化钼纳米片进行表面工程以增强吸附和气敏性能:DFT研究
本文利用密度泛函理论研究了环氧乙烷(c2h40o)分子在不同银原子簇的MoS2单层上的相互作用。我们的研究结果证实了银簇修饰的二硫化钼纳米片对环氧乙烷分子具有优异的吸附能力。基于能带结构和电荷密度重分布分析解释了电子性质的变化。我们的电荷密度分布计算代表了吸附分子上方的大量原子电荷。通过绘制投影态密度,我们描述了环氧乙烷分子的氧原子与Ag团簇之间发生的相互作用。还计算了吸附距离、吸附能、吸附角和其他结构因素来描述结果。因此,基于我们的研究结果,我们可以提出Ag簇修饰的MoS2体系作为实际相应用的有效的环氧乙烷(c2h40)检测装置。
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来源期刊
Journal of Nanoparticle Research
Journal of Nanoparticle Research 工程技术-材料科学:综合
CiteScore
4.40
自引率
4.00%
发文量
198
审稿时长
3.9 months
期刊介绍: The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size. Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology. The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.
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