Surface Science最新文献_第8页

Adsorption and sensing SF6 decomposed gases; SO2, SO2F2, SOF2, H2S, and HF on Fe and Co decorated monolayer BC6N. First-principles study SF6分解气体的吸附与传感；Fe和Co修饰单层BC6N上的SO2、SO2F2、SOF2、H2S和HF。采用基于研究

IF 1.8 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-07-16 DOI: 10.1016/j.susc.2025.122812

Ali Raza Chachar , Basheer Ahmed Kalwar , Muhammad Rafique , Amir Mahmood Soomro , Zaheer Ahmed , Ahsanullah Memon

Partial discharges in SF₆ circuit breakers decompose SF₆ into low-fluorine gases, which react with trace moisture to form corrosive acids, degrading contacts and impairing arc quenching capacity, necessitating a 24/7 monitoring system for early detection and prevention. In this work, carbon boronitride (BC₆N) monolayer is investigated for potential application of SF₆ decomposed gases SO₂, SO₂F₂, SOF₂, H₂S, and HF through DFT calculations. Adsorption performance through adsorption energy, charge density difference, density of states, while sensitivity through band structures, work function and transport transmission and recovery through recovery time calculations are evaluated. Results show that pristine BC₆N is weakly absorbing the gas molecules, however, BC₆N decorated with Fe and Co atoms chemisorbs the gas molecules with enhanced adsorption energy -1.01 to -1.61 eV and -0.95 to -1.58 eV respectively. Diffusion energy barrier calculation confirms that Fe and Co atoms don’t make clusters. Sensitivity of Fe/BC₆N and Co/BC₆N to gas molecules respectively follows: (67.5 % and 72.9 %) for SO₂F₂> (70.8 % and 65 %) for SOF₂> (68.7 % and 62.5 %) for SO₂> (64.5 % and 57.5 %) for H₂S> (58.3 % and 50 %) for HF. Recovery time calculations results show that strongest adsorbed SO₂F₂ molecule takes 117.5 h to be desorbed at 498 K temperature, which is considerably shortened to 1.69 nanoseconds upon UV exposure. Our proposed substrates can actively adsorb, sense and instantaneously desorb the target gas molecules, proving that Fe/BC₆N and Co/BC₆N can potentially be highly sensitive and reusable gas sensors.

SF6断路器的局部放电将SF6分解为低氟气体，与微量水分反应形成腐蚀性酸，使触点退化，降低灭弧能力，需要全天候监测系统进行早期发现和预防。本文通过DFT计算，研究了硼氮化碳（BC6N）单层在SF6分解气体SO2、SO2F2、SOF2、H2S和HF中的潜在应用。通过吸附能、电荷密度差、态密度来评价吸附性能，通过能带结构、功函数、输运传输和恢复时间计算来评价灵敏度。结果表明，原始BC6N对气体分子的吸附能力较弱，而经Fe和Co修饰的BC6N对气体分子的吸附能分别为-1.01 ~ -1.61 eV和-0.95 ~ -1.58 eV。扩散能垒计算证实了Fe和Co原子不会形成团簇。Fe/BC6N和Co/BC6N对气体分子的敏感性分别为：SO2F2>为67.5%和72.9%；（70.8%和65%）；（68.7%和62.5%）；（64.5%和57.5%）；（58.3%和50%）。恢复时间计算结果表明，吸附最强的SO2F2分子在498 K温度下的解吸时间为117.5 h，而在紫外线照射下的解吸时间大大缩短至1.69纳秒。我们提出的底物可以主动吸附、传感和瞬间解吸目标气体分子，证明Fe/BC6N和Co/BC6N有潜力成为高灵敏度和可重复使用的气体传感器。

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引用次数: 0

Initial stage of silver overlayer formation on the Ni(110) surface Ni（110）表面银层形成的初始阶段

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-07-10 DOI: 10.1016/j.susc.2025.122807

A. Mizuhara , T. Fukuda , K. Umezawa

Silver-induced surface atomic structures on a Ni(110) surface up to 1 ML between room temperature and 673 K were studied using ultrahigh vacuum scanning tunneling microscopy and low-energy electron diffraction. A 0.72 ML-Ag-deposited surface at room temperature showed monolayer-high aggregated Ag stripes separated by periodic trenches and shallow troughs. Ag stripes consisted of six aggregated Ag atoms in the

[1 \bar{1} 0]

direction to form a one-dimensional (1-D) cluster and it extended in the

[001]

direction with 3 × 9 and

(\begin{matrix} 3 & 0 \\ \pm 1 & 9 \end{matrix})

surface superstructures. Some Ag stripes were bridged by fuzzy regions where 1-D fluctuating Ag atoms were adsorbed on the substrate Ni(110) row. Above 473 K, the 1-D Ag cluster consisting of seven atoms formed Ag stripes with

12 \times

periodicity of the surface unit cell in the

[1 \bar{1} 0]

direction, and the Ni(110) substrate surface was exposed between the Ag stripes. The stability of the Ag stripes was confirmed by conducting first principles calculations and through simulated STM images.

利用超高真空扫描隧道显微镜和低能电子衍射技术，研究了室温至673 K温度下1ml Ni（110）表面的银致表面原子结构。室温下0.72 ml银沉积表面显示出由周期性沟和浅槽分隔的单层高团聚银条纹。银条纹由6个银原子沿[11 > 0]方向聚集而成，形成一维团簇，沿[001]方向延伸，表面超结构为3 × 9和30±19个。一些银条纹被模糊区桥接，其中一维波动的银原子被吸附在衬底Ni（110）上。在473 K以上，由7个原子组成的一维银簇在[11′0]方向上形成了具有12倍周期性的银条纹，Ni（110）衬底表面暴露在银条纹之间。通过第一性原理计算和模拟STM图像证实了银条纹的稳定性。

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引用次数: 0

Well-defined nanoparticles: synthesis, characterization, applications in the XXI century (Surface Science special issue) 定义良好的纳米颗粒：合成，表征，在21世纪的应用（表面科学特刊）

IF 1.8 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-07-09 DOI: 10.1016/j.susc.2025.122811

Matteo Cargnello , Sen Zhang

引用次数: 0

First-principles study on the adsorption behavior of ZnO and Mn-doped ZnO with CO and NH3 gases ZnO和mn掺杂ZnO在CO和NH3气体中吸附行为的第一性原理研究

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-07-04 DOI: 10.1016/j.susc.2025.122810

Om Shree Rijal, Hari Krishna Neupane, Pitamber Shrestha, Shriram Sharma, Leela Pradhan Joshi, Rajendra Parajuli

The present work investigates the structural, electronic, and magnetic properties of a (3 × 3 × 1) supercell monolayer of Mn doped ZnO (Mn-ZnO), CO adsorbed on ZnO (CO-ZnO), NH₃ adsorbed on ZnO (NH₃-ZnO), and CO & NH₃ adsorbed on Mn-ZnO (CO-Mn-ZnO, & NH₃−Mn-ZnO) structures. Density functional theory (DFT) method with a projected augmented basis set has been used for this study, by employing two different exchange-correlation functionals: GGA-PBE and GGA-PBE+U through the Vienna-Ab-intio Simulation Package (VASP) software. We analyzed the lattice parameters, which reveal that doping Mn into ZnO, and adsorbing NH₃ and CO molecules on both ZnO and Mn-ZnO result in changes to the lattice parameters. Thus, the adsorbed molecules alter the lattice parameters, suggesting that both ZnO and Mn-ZnO have the ability to detect poisonous gases. Moreover, we also studied the band gap energy of considered materials using two functionals, PBE and PBE+U. The obtained band gap energies are closer to the experimental values when applying the PBE+U functional. Lastly, pristine ZnO, as well as CO, and NH₃ adsorbed ZnO (CO-ZnO, & NH₃-ZnO), are found to be non-magnetic, whereas Mn-ZnO, along with CO, and NH₃ adsorbed Mn-ZnO (CO-Mn-ZnO, & NH₃−Mn-ZnO) are found to be magnetic. Based on electronic and magnetic properties, considered materials are suited for sensing devices.

本文研究了Mn掺杂ZnO （Mn-ZnO）、CO吸附ZnO （CO-ZnO）、NH3吸附ZnO （NH3-ZnO）和CO &；NH3吸附在Mn-ZnO (CO-Mn-ZnO, &；NH3−Mn-ZnO)结构。本研究采用带投影增广基集的密度泛函理论（DFT）方法，通过维也纳- ab -intio仿真包（VASP）软件采用GGA-PBE和GGA-PBE+U两种不同的交换相关泛函。通过对晶格参数的分析，我们发现在ZnO中掺杂Mn，在ZnO和Mn-ZnO上同时吸附NH3和CO分子会导致晶格参数的变化。因此，被吸附的分子改变了晶格参数，表明ZnO和Mn-ZnO都具有检测有毒气体的能力。此外，我们还利用PBE和PBE+U两种功能函数研究了所考虑材料的带隙能。应用PBE+U泛函得到的带隙能更接近实验值。最后，原始ZnO、CO和NH3吸附ZnO (CO-ZnO, &；NH3- zno)是无磁性的，而Mn-ZnO与CO和NH3一起吸附Mn-ZnO (CO-Mn-ZnO, &；NH3−Mn-ZnO)是磁性的。基于电子和磁性，所考虑的材料适用于传感设备。

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引用次数: 0

Effect of applied biaxial strain in O-doped system on the optoelectronic properties of monolayer GeS o掺杂体系中外加双轴应变对单层GeS光电性能的影响

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-07-01 DOI: 10.1016/j.susc.2025.122809

Hangqing Wu, Lu Yang, Liqun Wu, Xinning Li, Ruiyuan Li

In this study, we apply first-principle calculations to systematically investigate the synergistic regulation of physical properties of monolayer GeS materials by oxygen doping and biaxial strain. Theoretical calculations show that oxygen doping improves the charge uniformity of the system, and the strain enhancement reduces the degree of orbital hybridization and enhances the electron delocalization; doping broadens the bandgap of the material, which reaches a maximum at 2 % tensile strain, shrinks with increasing strain, and decreases monotonically under compressive strain. Differential charge density analysis shows that the tensile strain weakens the electronic reconfiguration of Ge-O bonds, reduces the bonding strength, and weakens the jump dipole moment; the compressive strain enhances the electron accumulation and orbital coupling, and improves the responsiveness of the material to low-energy light. The absorption spectra show that the biaxial strain decreases and blueshifts the absorption peaks, reflecting the broadening of the bandgap, while the compressive strain strengthens and redshifts the absorption peaks; in the reflectance spectra, the tensile strain diminishes the reflection peaks, while the compressive strain strengthens the reflection intensity. The study provides a theoretical basis for the energy band engineering of two-dimensional GeS materials as well as the application of flexible optoelectronic devices and tunable spectral sensors.

在这项研究中，我们应用第一性原理计算系统地研究了氧掺杂和双轴应变对单层GeS材料物理性能的协同调节。理论计算表明，氧掺杂改善了体系的电荷均匀性，应变增强降低了轨道杂化程度，增强了电子离域；掺杂使材料的带隙变宽，在拉伸应变为2%时达到最大值，随着应变的增加而缩小，在压缩应变下单调减小。差分电荷密度分析表明，拉伸应变削弱了Ge-O键的电子重构型，降低了键合强度，减弱了跳变偶极矩；压缩应变增强了电子积累和轨道耦合，提高了材料对低能光的响应性。吸收光谱表明，双轴应变减小，吸收峰蓝移，反映了带隙的变宽，而压缩应变增强，吸收峰红移；在反射光谱中，拉伸应变使反射峰减弱，而压缩应变使反射强度增强。该研究为二维GeS材料的能带工程以及柔性光电器件和可调谐光谱传感器的应用提供了理论基础。

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引用次数: 0

Adsorption of ethyl ether on graphene/silicon – Theory and experiment 乙醚在石墨烯/硅上的吸附——理论与实验

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-06-28 DOI: 10.1016/j.susc.2025.122808

T. Stach , Md Arif Uddin , Uwe Burghaus , Trung T. Pham , Robert Sporken , Abdolvahab Seif , Alberto Ambrosetti , Pier Luigi Silvestrelli

Adsorption of ethyl ether, CH₃CH₂–O–CH₂CH₃ (or C₄H₁₀O or (CH₃CH₂)₂O), on graphene/Si(111) (hereafter Gr/Si(111)) was characterized by kinetics (multi-mass thermal desorption spectroscopy (TDS), steady-state rate measurements) and spectroscopic (Auger electron spectroscopy (AES), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy) techniques as well as by density functional theory calculations (DFT) as a potential metal-free catalyst. TDS results agree with the expected fragmentation pattern of molecular ethyl ether. AES and XPS spectra collected after ethyl ether adsorption are identical with data for pristine Gr/Si(111). Therefore, ethyl ether adsorbs molecularly, consistent with large activation energies for dissociation calculated by the DFT.

通过动力学（多质量热解吸光谱（TDS）、稳态速率测量）、光谱（埃格电子能谱（AES）、x射线光电子能谱（XPS）、拉曼光谱）技术以及密度泛函理论计算（DFT），表征了乙醚CH3CH2 - o - ch2ch3（或C4H10O或（CH3CH2）2O）在石墨烯/Si(111)（以下简称Gr/Si(111)）上作为潜在无金属催化剂的吸附特性。TDS结果与预期的乙醚分子断裂模式一致。乙醚吸附后收集的AES和XPS光谱与原始Gr/Si（111）的数据一致。因此，乙醚在分子上吸附，这与DFT计算的解离活化能大一致。

引用次数: 0

Dimer adsorption and identification for various spiropyran-based molecular switches using Molecular Mechanics calculations 基于分子力学计算的各种螺吡喃分子开关的二聚体吸附和鉴定

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-06-28 DOI: 10.1016/j.susc.2025.122803

Andreas Riemann, Lauren Rankin, Dylan Henry

In this study we have systematically investigated the adsorption geometries and energies of various merocyanine/spiropyran molecules on NaCl. The molecules are closed-ring spiropyran molecules with various side groups which can be transferred into open-ring merocyanine molecules. These isomers act as molecular switches which can be triggered by different external stimuli. The underlying substrate for this study is a two-layer film of the ionic insulator sodium chloride (NaCl). Adsorption of the spiropyran molecules is mostly driven by a competition between the sets of aromatic rings being able to find configurations close to the surface which leads overall to more preferable adsorption energies. On the other hand, since the merocyanine isomer as T-conformers have a generally flat geometry, they will be able to orient themselves nearly parallel to the substrate. This leads to higher binding energies for T-conformer compared to C-conformers, which due to steric effects cannot adsorb in a flat configuration. The beginning of film growth for these molecules starts with dimer formation which can be in parallel or anti-parallel geometries. In general, the anti-parallel configurations lead to higher binding energies when oppositely charged moieties of the molecules can interact through Coulomb forces. Comparing the calculated dimer configurations to experimentally observed dimers allows us to identify the particular conformers for each merocyanine molecule which might be energetically more favorable upon adsorption on the substrate. For two molecules with similar side groups, namely benzo and naphtho merocyanine, the so-called CTT and TTC conformers form dimers with highest binding energies, whereas for nitro and methoxy merocyanine, which have a common nitro side group, the dimers with highest binding energies consist of CTC and TTT conformers.

在本研究中，我们系统地研究了各种merocyanine/spiropyran分子在NaCl上的吸附几何形状和吸附能。这些分子是具有各种侧基的闭环螺吡喃分子，这些侧基可以转化为开环merocyanine分子。这些异构体起着分子开关的作用，可以被不同的外部刺激触发。本研究的底层衬底是离子绝缘体氯化钠（NaCl）的两层薄膜。螺吡喃分子的吸附主要是由芳香环之间的竞争驱动的，它们能够找到靠近表面的构型，从而产生更有利的吸附能。另一方面，由于作为t形构象的merocyanine异构体通常具有平坦的几何形状，它们将能够定向自己几乎平行于底物。这导致与c -构象相比，t -构象的结合能更高，c -构象由于空间效应不能在平面构型中吸附。这些分子的膜生长开始于二聚体的形成，二聚体可以是平行的或反平行的几何形状。一般来说，当分子中带相反电荷的部分通过库仑力相互作用时，反平行构型会导致更高的结合能。将计算的二聚体构型与实验观察到的二聚体进行比较，我们可以确定每个merocyanine分子的特定构象，这些构象可能在能量上更有利于在底物上吸附。对于两个侧基相似的分子，即苯并和萘merocyanine，所谓的CTT和TTC构象形成了结合能最高的二聚体，而对于硝基和甲氧基merocyanine，具有共同的硝基侧基，具有最高结合能的二聚体是CTC和TTT构象。

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引用次数: 0

Exploring the evolution of magnesium oxidation mechanisms by density functional theory 用密度泛函理论探讨镁氧化机理的演化

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-06-27 DOI: 10.1016/j.susc.2025.122806

Zhe Xing , Dmytro Orlov , Elsebeth Schröder

Magnesium (Mg) is an abundant metal which has been used in aviation, medicine, hydrogen energy storage, etc. However, Mg can be rather reactive, and therefore an improved understanding of corrosion and oxidation mechanisms can enhance the efficiency of these processes to control and widen applications. The study presented here investigates the mechanisms of oxidation from the initial to full monolayer stages, on two low-index Mg surfaces, Mg(0001) and Mg

(10 \bar{1} 0)

. By analysing the valence electron changes during the oxidation process, we reveal a connection between oxidation and electron properties, suggesting that oxygen (O) atoms preferentially adsorb in the regions of charge accumulation on the surfaces. After the adsorption of a first O atom, the charge distribution on the surface changes, and following O atoms are attracted to neighbouring charge-rich regions. In addition, the oxidized Mg-O units form geometric structures initially different from the rocksalt structure commonly reported for a fully oxidized surface. In Mg(0001), the Mg-O unit structure transitions from a wurtzite type to hexagonal, while on Mg

(10 \bar{1} 0)

a more perfect Mg-O unit of wurtzite structure forms.

镁（Mg）是一种丰富的金属，在航空、医药、储氢等方面都有广泛的应用。然而，Mg可能是相当活跃的，因此，对腐蚀和氧化机制的更好理解可以提高这些过程的效率，以控制和扩大应用。本文研究了两个低指数Mg表面Mg（0001）和Mg（101¯0）从初始到完全单层阶段的氧化机制。通过分析氧化过程中价电子的变化，我们揭示了氧化与电子性质之间的联系，表明氧(O)原子优先吸附在表面电荷积聚区域。第一个O原子吸附后，表面的电荷分布发生变化，其后的O原子被吸引到邻近的富电荷区。此外，氧化Mg-O单元形成的几何结构最初与通常报道的完全氧化表面的岩盐结构不同。在Mg（0001）中，Mg- o单元结构从纤锌矿型转变为六边形，而在Mg（101¯0）中形成了更完美的Mg- o纤锌矿结构单元。

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引用次数: 0

Analyzing the capture of volatile polonium-210 in lead-bismuth eutectic coolant environments on metallic Pb, Pt, Au, and Cu (1 1 1) adsorption surfaces based on density functional theory 基于密度泛函理论分析铅铋共晶冷却剂环境中挥发性钋-210在金属Pb、Pt、Au和Cu（11 11）吸附表面的捕获

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-06-24 DOI: 10.1016/j.susc.2025.122805

Yu Yang , Wei Zuo , Mingzhang Lin

This study uses density functional theory (DFT) to investigate the adsorption of volatile polonium species (Po, Po₂, PbPo, H₂Po, and PoOH) on Pd, Pt, Au, and Cu (1 1 1) surfaces, critical for capturing radioactive polonium in lead-bismuth eutectic (LBE) nuclear coolants. Geometric optimizations and adsorption energy calculations show Pd and Pt (1 1 1) surfaces exhibit superior adsorption for most species: monatomic Po adsorbs strongest on Pd (−3.95 eV) via covalent/orbital hybridization; Po₂ and PbPo form stable dissociative/cooperative bonds on Pd/Pt; H₂Po shows weak physisorption on Au/Cu due to limited orbital overlap; PoOH favors Pt through hydrogen bonding and O-M interactions. Electron density changes (Δρ(r)) and partial density of states (PDOS) confirm strong chemisorption with electron accumulation and orbital hybridization, aligning with frontier orbital theory predictions. Adsorption trends follows the order of Pd/Pt > Cu > Au and the adsorption reactivity of Po species on the Pd(1 1 1) surfaces occur most spontaneously within LBE coolant operation temperature highlight Pd as promising for filter materials, providing a theoretical basis for mitigating polonium volatility in advanced nuclear systems.

本研究利用密度泛函理论（DFT）研究了挥发性钋（Po, Po2, PbPo， H2Po和PoOH）在Pd， Pt， Au和Cu（11 11）表面的吸附，这对于捕获铅铋共晶（LBE）核冷却剂中的放射性钋至关重要。几何优化和吸附能计算表明，Pd和Pt（11 11）表面对大多数物质具有优越的吸附性能：单原子Po通过共价/轨道杂化对Pd （- 3.95 eV）的吸附最强；Po2和PbPo在Pd/Pt上形成稳定的解离/协同键；由于轨道重叠有限，H2Po对Au/Cu的物理吸附较弱；PoOH通过氢键和O-M相互作用有利于Pt。电子密度变化（Δρ(r)）和部分态密度（PDOS）证实了电子积累和轨道杂化的强化学吸附，与前沿轨道理论预测一致。吸附趋势遵循Pd/Pt >的顺序；铜比;在LBE冷却剂工作温度下，Au和Po在Pd（11 11）表面的吸附反应性最自发地发生，突出了Pd作为过滤材料的前景，为减轻先进核系统中钋的挥发性提供了理论基础。

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引用次数: 0

Precious metal (Ag, Au, Pt, Pd) doped monolayer SnSe2 adsorption of gas molecules CO 贵金属（Ag, Au, Pt, Pd）掺杂单层SnSe2吸附气体分子CO

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Surface Science

Pub Date : 2025-06-24 DOI: 10.1016/j.susc.2025.122802

Tong Yuan , Guili Liu , Guoying Zhang

The effect of atomic doping of noble metals (Ag, Au, Pt, Pd) with high activity and stability on the adsorption of CO gas molecules by monolayers of SnSe₂ is investigated by using the first principles, which is used to effectively improve the sensitivity of monolayers of SnSe₂ to harmful gases. The most stable adsorption configuration of CO on the surface of the structure was found to be adsorbed with C atoms close to the crystal surface, slightly tilted, and perpendicular to the top of the hexagonal vacancies. With the embedding of noble metal atoms, the adsorption height and adsorption energy of CO on the system's surface decreased, the binding of CO on the system's surface increased, and the adsorption performance of the SnSe₂ system was improved. The phonon dispersion analysis shows that all systems can be formed stably. The introduction of Au and Ag atoms makes the whole adsorption system metallic. The d-orbital electrons of dopant atoms enhance hybridization between Sn-4p and Se-4s orbitals, strengthening electronic interactions. Mulliken populations analysis shows that the number of charges for CO molecules to undergo transfer increases when the surface of the doped system absorbs CO molecules, and the surface activity of the system is enhanced.

利用第一性原理研究了高活性稳定的贵金属（Ag、Au、Pt、Pd）原子掺杂对SnSe2单层吸附CO气体分子的影响，有效提高了SnSe2单层对有害气体的敏感性。CO在结构表面最稳定的吸附构型是靠近晶体表面、微倾斜、垂直于六边形空位顶部的C原子吸附。随着贵金属原子的包埋，CO在体系表面的吸附高度和吸附能降低，CO在体系表面的结合增强，SnSe2体系的吸附性能得到提高。声子色散分析表明，所有体系都能稳定形成。Au和Ag原子的引入使整个吸附体系金属化。掺杂原子的d轨道电子增强了Sn-4p和Se-4s轨道之间的杂化，加强了电子相互作用。Mulliken居群分析表明，当掺杂体系表面吸收CO分子时，CO分子进行转移的电荷数量增加，体系的表面活性增强。

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引用次数: 0