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艾德思:精品干货SCI论文中如何来描述SAXS实验结果

论文润色 | 2019/06/26 13:51:33  | 248 次浏览

 1. 怎样非常详细地描述 SAXS 的实验结果?

举例:

The SAXS pattern of the  solvent -extracted PMO-SBA-16 shows three well-resolved peaks at very small scattering angles, with interplanar  d   spacings of 12.8, 9.03, and 7.38 nm. These three peaks can be indexable as (110), (200), and (211) reflections of the body-centered 3D cubic space group ( Im 3 m ), similar to that reported for the silica-based mesoporous counterpart SBA-16.  The unit cell parameter of the cubic lattice is as large as 18.1 nm. This is the first large-pore PMO material that exhibits such a highly ordered 3D mesostructure. By contrast, the SAXS pattern of the   solvent -extracted control sample F127 blank prepared in the absence of K 2 SO 4   reveals the formation of amorphous gel. 

参考文献 : Chem. Commun., 2003, 2692-2693

 

提炼语言模板:

定性分析结果

观察到的结果: The SAXS pattern of the  样品名称 shows three well-resolved peaks at very small scattering angles, with interplanar  d  spacings of 面间距 nm.

对结果进行分析: These three peaks can be indexable as 晶面指数 reflections of the 晶体结构类型 , similar to that reported for the 已报道的结果 . 

 

定量分析结果

晶胞参数: The unit cell parameter of the cubic lattice is as large as __.

 

对比讨论

By contrast, the SAXS pattern of the  对比样品 prepared 制备条件  reveals the formation of amorphous gel.

 

2. 不同论文描写 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. ( 注: 蓝色字体部分 即为句型模板.)

 

A. LP-FDU-12 materials synthesized at low temperatures were first examined by X-ray diffraction (XRD) and further confirmed by the small-angle X-ray scattering (SAXS) method.The XRD pattern of S-17-100 shows six well-resolved diffraction peaks (SI). A typical SAXS pattern of sample S-17-100 (Figure 1a) also exhibits six peaks, which can be exactly indexed to the 111, 220,311, 331, 333, and 442 reflections of a   fcc   structure ( Fm 3 m ). The cell parameter is calculated to be 34.6 nm (33.0 nm from XRD). 

Ref.: J. Am. Chem. Soc. ,  2005 ,  127  (31),pp 10794–10795

 

B. The small-angle X-ray scattering (SAXS) patterns of as-made FDU-16 clearly show three well-resolved diffraction peaks with  q  values of 0.47, 0.64, and 0.80 nm -1 (Figure 1a). Four additional diffraction peaks a t   q  values of 0.88, 1.04, 1.12, and 1.22 nm -1   can also be detected. The  q -value ratios of these peaks are exactly 1:√2:√3:√4:√5:√6:√7 and canbe indexed as 110, 200,211, 220, 310, 222, and 321 Bragg reflections, respectively, associated with the body-centered cubic  Im 3̄ m  symmetry.

  Ref.: Chem. Mater. ,  2006 ,  18  (18),pp 4447–4464

 

C. The bulk structure of the mesoporous silica prepared with  1  as template via the nanocasting technique was characterized by small-angle X-ray scattering (SAXS). SAXS has turned out to be a powerful technique with which to investigate the structure of two-phase systems, (i.e.,nanostructure materials that can be supposed to be composed of two domains ofconstant electron density). The SAXS diffractogram of the present sample is shown in Figure 2. It exhibits a significantly main peak at   s  ≈ 0.20 nm, -1   which corresponds to the packing of the wormlike pores into a certain distorted 3D alignment. The position of th epeak is related to a length scale of approximately 5 nm, the averaged pore-to-pore distance, in good agreement with the TEM observation.

Ref.: Nano Letters ,  2004 ,  4  (3), pp 477–481

 

当 SAXS 作为一个辅助的表征手段来印证前面的表征结果时,也可以写得很简单

D. Small-angle X-ray scattering (SAXS; see the Supporting Information) reveals four well-resolved reflections, further confirming a highly ordered hexagonal mesostructure. 

 

E.  Small-angle X-ray scattering experiments confirmed the presence of two kinds of cubic structures  (C D  and C P ). 

Ref.: Langmuir ,  2001 ,  17 , 3917–3922

 

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