Terahertz Spectroscopy System of Gas Mixtures Based on a Solid State Superconducting Source and a Terahertz Receiver

Author(s):  
N. V. Kinev ◽  
K. I. Rudakov ◽  
L. V. Filippenko ◽  
V. P. Koshelets
PIERS Online ◽  
2010 ◽  
Vol 6 (4) ◽  
pp. 390-394 ◽  
Author(s):  
Tadao Nagatsuma ◽  
Akira Kaino ◽  
Shintaro Hisatake ◽  
Katsuhiro Ajito ◽  
Ho-Jin Song ◽  
...  

2019 ◽  
Author(s):  
Przemyslaw Rzepka ◽  
Zoltán Bacsik ◽  
Andrew J. Pell ◽  
Niklas Hedin ◽  
Aleksander Jaworski

Formation of CO<sub>3</sub><sup>2-</sup> and HCO<sub>3</sub><sup>-</sup> species without participation of the framework oxygen atoms upon chemisorption of CO<sub>2</sub> in zeolite |Na<sub>12</sub>|-A is revealed. The transfer of O and H atoms is very likely to have proceeded via the involvement of residual H<sub>2</sub>O or acid groups. A combined study by solid-state <sup>13</sup>C MAS NMR, quantum chemical calculations, and <i>in situ</i> IR spectroscopy showed that the chemisorption mainly occurred by the formation of HCO<sub>3</sub><sup>-</sup>. However, at a low surface coverage of physisorbed and acidic CO<sub>2</sub>, a significant fraction of the HCO<sub>3</sub><sup>-</sup> was deprotonated and transformed into CO<sub>3</sub><sup>2-</sup>. We expect that similar chemisorption of CO<sub>2</sub> would occur for low-silica zeolites and other basic silicates of interest for the capture of CO<sub>2</sub> from gas mixtures.


2010 ◽  
Vol 12 (4) ◽  
pp. 043017 ◽  
Author(s):  
A Roggenbuck ◽  
H Schmitz ◽  
A Deninger ◽  
I Cámara Mayorga ◽  
J Hemberger ◽  
...  

2008 ◽  
Vol 158 (7) ◽  
pp. 278-282 ◽  
Author(s):  
Jun-ichi Nishizawa ◽  
Takenori Tanno ◽  
Takahiro Oohashi ◽  
Hiraku Watanabe ◽  
Yutaka Oyama

2020 ◽  
Vol 22 (35) ◽  
pp. 19672-19679 ◽  
Author(s):  
A. D. Squires ◽  
Adam J. Zaczek ◽  
R. A. Lewis ◽  
Timothy M. Korter

New spectral features and anomalous shifting of vibrational modes of beta quinacridone are revealed, unusual thermal contraction the likely origin.


2011 ◽  
Vol 82 (5) ◽  
pp. 053102 ◽  
Author(s):  
Frank Ellrich ◽  
Tristan Weinland ◽  
Daniel Molter ◽  
Joachim Jonuscheit ◽  
René Beigang

2011 ◽  
Vol 1 (1) ◽  
pp. 321-331 ◽  
Author(s):  
Heinz-Wilhelm Hubers ◽  
Maurice F. Kimmitt ◽  
Norihisa Hiromoto ◽  
Erik Brundermann

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