The evolution of the active phase in CoMo/C hydrodesulfurization catalysts under industrial conditions: a high-pressure M�ssbauer emission spectroscopy study

2005 ◽  
Vol 229 (2) ◽  
pp. 276-282 ◽  
Author(s):  
A DUGULAN ◽  
M CRAJE ◽  
A OVERWEG ◽  
G KEARLEY
Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Akun Liang ◽  
Robin Turnbull ◽  
Enrico Bandiello ◽  
Ibraheem Yousef ◽  
Catalin Popescu ◽  
...  

We report the first high-pressure spectroscopy study on Zn(IO3)2 using synchrotron far-infrared radiation. Spectroscopy was conducted up to pressures of 17 GPa at room temperature. Twenty-five phonons were identified below 600 cm−1 for the initial monoclinic low-pressure polymorph of Zn(IO3)2. The pressure response of the modes with wavenumbers above 150 cm−1 has been characterized, with modes exhibiting non-linear responses and frequency discontinuities that have been proposed to be related to the existence of phase transitions. Analysis of the high-pressure spectra acquired on compression indicates that Zn(IO3)2 undergoes subtle phase transitions around 3 and 8 GPa, followed by a more drastic transition around 13 GPa.


2002 ◽  
pp. 261-264
Author(s):  
S. Anandan ◽  
J. Silver ◽  
G. R. Fern ◽  
P. J. Titler ◽  
C. A. McCammon

2018 ◽  
Vol 13 (1) ◽  
Author(s):  
Luxi Zhang ◽  
Weitao Su ◽  
Yanwei Huang ◽  
He Li ◽  
Li Fu ◽  
...  

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