科研小记 | XRD标准卡片 PDF#00-040-1296

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Vanadium Oxide Hydrate

V2 O5 ·1.6 H2 O Brown-red

射线=CuKa1 波长=1.5405 滤波法=

校准= 2θ=7.648-64.678 I/Ic(K值)=

文献: Aldebert, P., CENG/DRF-PCM 85X 38041, Grenoble, France.

Private Communication(1989)

正交晶系-(未知) Z=

晶胞: 3.56x4.37x11.55 <90.0x90.0x90.0> P.S=o??

密度(计算)= 密度(测量)= 分子量=210.7 体积=179.69 F(7)=2.6(0.049,55/0)

文献: Aldebert, P., Baffier, N., Gharbi, N., Livage, J.

Mater. Res. Bull., v16 p669(1981)

强峰线: 11.55/X 3.85/4 2.31/2 2.89/2

Color: Brown-red.

General Comments: Room temperature form of vanadium pentoxide gel.

The room temperature gel is observed by X-rays in reflection geometry.

 Only 00l reflections are observed because of the orientation of the platelets; hk0 reflections can be observed in transmission geometry, but there is a turbostratic disorder between the platelets which means that there are no hkl reflections.

Sample Preparation: The vanadium pentoxide is prepared by exchange of ''Na V O3'' through a cationic exchange resin from which results unstable ''H V O3'' species ''H V O3'' polycondensates giving rise at room temperature in a few hours to a deep red gel.

 This gel dried at room temperature and room humidity on a glass substrate (dip coating).

 This gives rises to the so called "xerogel".

   2θ    d(埃)   I(f)  ( h k l)      θ  1/(2d)   2π/d  n^2  

 7.648  11.5500  100.0  ( 0 0 1)   3.824  0.0433  0.5440     

23.083   3.8500   40.0  ( 0 0 3)  11.541  0.1299  1.6320     

30.917   2.8900   15.0  ( 0 0 4)  15.458  0.1730  2.1741     

38.958   2.3100   20.0  ( 0 0 5)  19.479  0.2165  2.7200     

47.306   1.9200    1.0  ( 0 0 6)  23.653  0.2604  3.2725     

55.659   1.6500    1.0  ( 0 0 7)  27.830  0.3030  3.8080     

64.678   1.4400    1.0  ( 0 0 8)  32.339  0.3472  4.3633     

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