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椰风挡不住

木虫 (著名写手)

[求助] 求助文献里的一段解释

The crystal structure of as-prepared graphene was characterized by XRD. From curve a in Fig. 3, the feature reflection peak of graphite located on the 2 angle of ∼26.6◦ (0 0 1) is observed with an interlayer spacing of 0.34 nm. The sharp and very intense basal reflection indicates the highly crystalline nature of graphite. This is in sharp contract to the GO (curve b). After oxidation and exfoliation, the diffraction peak of dried GO appears at 10.8◦ (0 0 2), indicating an estimated interlay space of 0.85 nm, quite similar to those reported elsewhere [21,27]. This value (0.85 nm) is much larger than the space (0.34 nm) of pristine graphite, attributed to the introduction of oxygenated functional groups on carbon sheets.
In the other hand, after the subsequent reduction, the diffraction peak disappeared (curve c) even when the y-axis was changed to a logarithm scale (inset of Fig. 3), confirming the great reduction of oxygenated groups and the high exfoliating degree of the layered graphene [28].求助下划线那句是怎么算出来的,0.34nm???

XRD
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椰风挡不住

木虫 (著名写手)

自己顶起,希望被懂得人看到。。。帮忙解释一下
2楼2011-11-02 16:32:11
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椰风挡不住

木虫 (著名写手)

层间距0.34纳米,怎么算出来的???用什么数据得到的?用XRD?
3楼2011-11-02 16:34:11
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huahua1216

至尊木虫 (文坛精英)

布拉格方程的晶面间距d是不是就是这个层间距啊
4楼2011-11-02 16:37:50
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椰风挡不住

木虫 (著名写手)

引用回帖:
4楼: Originally posted by huahua1216 at 2011-11-02 16:37:50:
布拉格方程的晶面间距d是不是就是这个层间距啊

XRD小白一个,我们是搞分析化学的,xrd是外行。见笑
布拉格方程?
XRD基本原理中有这个方程?
还是JADE软件中有这个方程?
5楼2011-11-02 18:48:45
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椰风挡不住

木虫 (著名写手)

不是应助回帖,不能送金币。。。
6楼2011-11-02 18:50:44
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signe

银虫 (小有名气)


【答案】应助回帖

★
椰风挡不住(金币+1): 谢谢 2011-11-03 22:54:36
lijunjie84: 金币+1, 感谢应助! 2012-03-27 12:11:37
2d=sinθ,好像是这个方程
7楼2011-11-02 20:13:35
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iaknankai

木虫 (正式写手)

不知道

引用回帖:
7楼: Originally posted by signe at 2011-11-02 20:13:35:
2d=sinθ,好像是这个方程

波长的符号哪去了?
别问我
8楼2011-11-02 22:51:55
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huahua1216

至尊木虫 (文坛精英)

【答案】应助回帖

椰风挡不住(金币+1): 谢谢 2011-11-03 22:54:56
2d sin theta = 波长
9楼2011-11-03 08:26:43
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hjypt

铁杆木虫 (正式写手)

【答案】应助回帖

★
椰风挡不住(金币+1): 谢谢,光靠数据能得出这个值来吗? 2011-11-03 22:56:00
lijunjie84: 金币+1, 欢迎回帖交流! 2012-03-27 12:11:57
测试的时候,XRD软件可以直接标出d值
10楼2011-11-03 15:39:59
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