SCI論文中描述XRD結果之Part 2. XRD定性分析物質結晶程度和純度
1. 列舉型(推薦)
實例一:The diffraction pattern for the electrodeposited film has seven broadpeaks at11.8°, 16.8°, 26.7°, 35.2°, 39.2° , 46.4° and 55.9°, corresponding to(100), (200), (310),(211), (301), (411), and (521)of β-FeOOH (ICSD 31136),respectively.
(Ref.: Zou, S. etc., Chem. Mater.2015, 27, 8011 – 8020)
句式模板: ... shows/has/exhibits N(特征峰數目) peaks at _, _, _and _,corresponding to (), (), () and () of __ (JCPDS (或ICSD) ___), respectively.
變型: Wide-angle X-ray diffraction (WAXD) shows broadpeaksat _, _, and _°, which arecharacteristic of ... (JCPDS __).
優點:證據確鑿,內容充實,既讓人信服,又可以為下文的其他表征(比如高分辨電鏡中的晶面間距)打好基礎。
適合于:1) XRD結果或者物質的晶型結構對于文章主體內容有重要價值的時候(例如,材料的晶型是重點考察對象(晶型影響材料性能)時;必須通過XRD來對物質組成結構進行定性時);
2)下文其它表征需要和XRD結果進行呼應時,比如HRTEM圖片中的晶面間距要和XRD (h,k,l)面進行對應時;
3)有多個XRD譜圖需要描述時,第一個譜圖的描述宜詳寫,這樣后面的譜圖描述就可以簡略一些,詳略得當。
2. 指派型
實例二:Peaks appearing in the original CdS rods can beindexed to wurtziteCdS (JCPDS __) and those in the fully exchanged rods can be indexed toacanthite (JCPDS __).
(Ref. : Robinson, R. etc., Science 2007, 317, 355-358)
句式模板:Peaks appearing in __ can be (well) indexed to __ (JCPDS __).
變型:The pattern for __ has a number of peaks that can be well-indexed to __(JCPDS __).
優點:言簡意賅,直截了當將譜圖指派給某一物質。
適用于:1)材料組成簡單且比較明確的情況下,XRD譜圖只是用來區別物質組成時;2)前文已經有對其他XRD譜圖進行具體描述時,為了讓文章不重復啰嗦時。
3. 驗證型
實例三:The crystal phase of CuO spheres was further confirmed byX-raydiffraction.
(Ref.: Zhu, J. etc., Energy Environ. Sci., 2013,6, 987-993)
句式模板:The crystal phase of __ was further confirmed byX-ray diffraction.
變型:We further confirmed that thepolycrystalline __ (spheres, nanoparticles,rods) belong to __ by XRD.
優點:句式極其簡單
適用于:XRD結果作為輔助信息來驗證前文已經較為明確的結果時。
本文轉自研之成理

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