In Situ Observation of Multiple Phase Transitions in Low-Melting Ionic Liquid [BMIM][BF4] under High Pressure up to 30 GPa

2012 ◽  
Vol 116 (7) ◽  
pp. 2216-2222 ◽  
Author(s):  
Lei Su ◽  
Xiang Zhu ◽  
Zheng Wang ◽  
Xuerui Cheng ◽  
Yongqiang Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Ionic Liquid ◽  
Phase Transitions ◽  
In Situ Observation ◽  
Multiple Phase

scholarly journals In situ observation of phase changes of a silica-supported cobalt catalyst for the Fischer–Tropsch process by the development of a synchrotron-compatible in situ/operando powder X-ray diffraction cell

2018 ◽  
Vol 25 (6) ◽  
pp. 1673-1682 ◽  
Author(s):  
Adam S. Hoffman ◽  
Joseph A. Singh ◽  
Stacey F. Bent ◽  
Simon R. Bare
Keyword(s):  
High Pressure ◽  
Elevated Pressure ◽  
Phase Changes ◽  
In Situ Observation ◽  
X Ray Diffraction ◽  
Fischer Tropsch ◽  
X Ray ◽  
And Performance ◽  
Co Nanoparticles

In situ characterization of catalysts gives direct insight into the working state of the material. Here, the design and performance characteristics of a universal in situ synchrotron-compatible X-ray diffraction cell capable of operation at high temperature and high pressure, 1373 K, and 35 bar, respectively, are reported. Its performance is demonstrated by characterizing a cobalt-based catalyst used in a prototypical high-pressure catalytic reaction, the Fischer–Tropsch synthesis, using X-ray diffraction. Cobalt nanoparticles supported on silica were studied in situ during Fischer–Tropsch catalysis using syngas, H2 and CO, at 723 K and 20 bar. Post reaction, the Co nanoparticles were carburized at elevated pressure, demonstrating an increased rate of carburization compared with atmospheric studies.

scholarly journals Pressure-and temperature induced phase transitions, piezochromism, NLC behaviour and pressure controlled Jahn–Teller switching in a Cu-based framework

2020 ◽  
Vol 11 (33) ◽  
pp. 8793-8799
Author(s):  
Charles J. McMonagle ◽  
Priyanka Comar ◽  
Gary S. Nichol ◽  
David R. Allan ◽  
Jesús González ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Single Crystal ◽  
Spectroscopic Techniques ◽  
Single Crystal Diffraction ◽  
Jahn Teller ◽  
Pressure Controlled

In situ high-pressure single-crystal diffraction and spectroscopic techniques have been used to study a previously unreported Cu-framework bis[1-(4-pyridyl)butane-1,3-dione]copper(ii) (CuPyr-I).

High-Pressure Phase Transitions of Cubic Y 2 O 3 under High Pressures by In-situ Synchrotron X-Ray Diffraction

2019 ◽  
Vol 36 (4) ◽  
pp. 046103 ◽  
Author(s):  
Sheng Jiang ◽  
Jing Liu ◽  
Xiao-Dong Li ◽  
Yan-Chun Li ◽  
Shang-Ming He ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
High Pressures ◽  
High Pressure Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pressure Phase

scholarly journals In Situ Observation of Efflorescence and Deliquescence Phase Transitions of Single NaCl and NaNO3 Mixture Particles in Air Using a Laser Trapping Technique

2020 ◽  
Vol 93 (1) ◽  
pp. 86-91
Author(s):  
Shoji Ishizaka ◽  
Fangqin Guo ◽  
Xiaomeng Tian ◽  
Samantha Seng ◽  
Yeny A. Tobon ◽  
...  
Keyword(s):  
Phase Transitions ◽  
In Situ Observation ◽  
Laser Trapping

In situ observation of H2 dissociation on the ZnO (0001) surface under high pressure of hydrogen using ambient-pressure XPS

2018 ◽  
Vol 43 (18) ◽  
pp. 8655-8661 ◽  
Author(s):  
Bongjin S. Mun ◽  
Zhi Liu ◽  
Md Abdul Motin ◽  
Probir C. Roy ◽  
Chang Min Kim
Keyword(s):  
High Pressure ◽  
Ambient Pressure ◽  
In Situ Observation ◽  
Ambient Pressure Xps
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