SCI论文中描述XRD结果之Part 2. XRD定性分析物质结晶程度和纯度
1. 列举型(推荐)
实例一: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(特征峰数目) peaks at _, _, _and _,corresponding to (), (), () and () of __ (JCPDS (或ICSD) ___), respectively.
变型: Wide-angle X-ray diffraction (WAXD) shows broadpeaksat _, _, and _°, which arecharacteristic of ... (JCPDS __).
优点:证据确凿,内容充实,既让人信服,又可以为下文的其他表征(比如高分辨电镜中的晶面间距)打好基础。
适合于:1) XRD结果或者物质的晶型结构对于文章主体内容有重要价值的时候(例如,材料的晶型是重点考察对象(晶型影响材料性能)时;必须通过XRD来对物质组成结构进行定性时);
2)下文其它表征需要和XRD结果进行呼应时,比如HRTEM图片中的晶面间距要和XRD (h,k,l)面进行对应时;
3)有多个XRD谱图需要描述时,第一个谱图的描述宜详写,这样后面的谱图描述就可以简略一些,详略得当。
2. 指派型
实例二: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 __).
变型:The pattern for __ has a number of peaks that can be well-indexed to __(JCPDS __).
优点:言简意赅,直截了当将谱图指派给某一物质。
适用于:1)材料组成简单且比较明确的情况下,XRD谱图只是用来区别物质组成时;2)前文已经有对其他XRD谱图进行具体描述时,为了让文章不重复啰嗦时。
3. 验证型
实例三: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.
变型:We further confirmed that thepolycrystalline __ (spheres, nanoparticles,rods) belong to __ by XRD.
优点:句式极其简单
适用于:XRD结果作为辅助信息来验证前文已经较为明确的结果时。
本文转自研之成理
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