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SCI论文中XPS这么写

2024-07-10 04:45| 来源: 网络整理| 查看: 265

定性分析结果:The coexistence of 元素化合态(I)and 元素化合态(II)in 样品名catalyst is evidenced by a shoulder observed on the main peak at 峰位置eV (Figure2a), which is assigned to物种类型species. The higher binding energy (BE) 峰属性 peak at 峰位置 eV and its shakeup satellites are due to 物种类型.

For 样品名, only 物种类型 species are confirmed by XPS.

定量分析结果:The 物种类型 percentage in样品名is estimated to be 百分比.

从这些信息可还可以进一步得到什么:These 物种类型 species can be completely ___ to 物种类型 by 处理方法 as evidenced by 表征手段。

2.不同文章中描写XPS结果可能详略不一,下面总结一些比较常见的写法供大家参考。

A. 主峰的定性分析(蓝色标记部分即为模板):

TheIn 3d spectrum exhibits two contributions, 3d5/2 and 3d3/2(resulting from the spin–orbit splitting), located at respectively 444.7 and 452.2eV (Figure a, bottom), which can be assigned toInP. TheP2pspectrum (Figure b, bottom) clearly evidences the presence of two chemical environments forphosphorus atoms.The spectrum has been fitted by considering two resolved doublets(with a spin–orbit splitting of ∼0.9 eV between 2p3/2and 2p1/2). The first predominant doublet, present at 128.7–129.6 eV, is characteristic of InP. The second one, with a lower intensity, is located at higher binding energies, 133.2–134.1eV, and corresponds, in agreement with the NMR results, tophosphorus in an oxidized environment, probably InPOx.

参考文献:, H. et al.J. Am. Chem. Soc, 2012, 134, 19701-19708

B. 处理前后XPS主峰的变动

1. The shift in BEs when comparing the neatZnO, CuO and the composite material () provides evidence of an interaction between the Cu2+ and Zn2+ species. Inclusion ofLa into the system shifted the Cu 2p3/2 peak maxima()from933.4 eV at low La loadings(1 wt%) to933.7 eV at higher La loadings (11 wt%) and was accompanied by a decrease in La 3d5/2 peak maxima() from835.4 to835.1 eV, demonstrating an interaction between CuO and La2O3. The simultaneous and opposing changes to Cu2p and La 3d BEs infer a decrease in electron density in the Cu nucleus by increasingLa dopant concentration.La2O3 inclusion had no influence on the ZnO peak maxima.

参考文献:Kam, R. et al., J. Catal. 2010, 273, 73-81.

2. Figure 5a summarizes the binding energy shifts measured with respect to Au-bulk (Au-4f7/2= 84.0 eV) as a function of cluster size and support. An increase in the BE shift with decreasing cluster size has been observed for Au/SiO2/n-Si(001) in accordance with Chusuei et al.with a maximum shift of 0.88 eV at 1.5 nm.

参考文献:, B. J. Am. Chem. Soc.,2003,125 (42), pp 12928–12934

C. XPS全谱的描述

Surface analysis of the films was carried out using X-rayphotoelectron spectroscopy(Figure 3).TheSb 3d5/2 and 3d3/2 peaks are observed at 529.7 and 537.3 eV,respectively.Additional peaks(525.9 and 535.4 eV) for Sb 3dindicate different chemical environments i.e., Sb−O and Sb−Te. The values of 539.6 eV(3d3/2) and 530.3 eV (3d5/2)are reported forantimony oxide in the literature. A broad peak forSb 3d3/2is obtained due to overlapping with theO 1s (529.6 eV) peak. The twoTe 3dsignals, corresponding toTe−Sb andTe−O,are also seen. The values forTe−O, i.e., 584 eV (3d3/2) and 574 eV (3d5/2), are comparable to literature values of 586 (3d3/2) and 576 eV (3d5/2).The presence of theO1s peak indicates that oxidation of the film takes place after exposure to the atmosphere.

参考文献:, S.J. Am. Chem. Soc., 2006, 128 (10), pp 3120–3121

D. 定量描述样品表面各元素含量

XPS revealed thatN-doping occurred at a temperature as low as 300 °C for GO annealed in NH3, with∼3.2% N detected in the sample(Figures b, a). N levels in GO sheets annealed in NH3 between 300 and 1100 °C were in a range of ∼3−5%,with500 °C annealing affording the highest N-doping levelof ∼5% (Figure a). Comparing the oxygen levels of GO samples annealed in NH3 and H2 at various temperatures, we found that the oxygen levels in GO annealed in NH3 were lower than in thoseannealed in H2 at the same temperatures except for 1100 °C (Figureb). This indicatedmore effective reduction effects of thermal annealing in NH3 than in H2 below∼1100 °C.

参考文献:Li, X. J.Am. Chem. Soc., 2009, 131(43), pp 15939–15944

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