Mechanism of the H2 Effect on NH3-Selective Catalytic Reduction over Ag/Al2O3: Kinetic and Diffuse Reflectance Infrared Fourier Transform Spectroscopy Studies

ACS Catalysis ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 10489-10498 ◽  
Author(s):  
Guangyan Xu ◽  
Jinzhu Ma ◽  
Lian Wang ◽  
Zhihui Lv ◽  
Shaoxin Wang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Selective Catalytic Reduction ◽  
Diffuse Reflectance ◽  
Catalytic Reduction ◽  
Fourier Transform Spectroscopy ◽  
Spectroscopy Studies ◽  
Diffuse Reflectance Infrared ◽  
H2 Effect

Specific binding of a biotinylated, metallocarbonyl-labelled dendrimer to immobilized avidin detected by diffuse-reflectance infrared Fourier transform spectroscopy

2004 ◽  
Vol 18 (3) ◽  
pp. 105-110 ◽  
Author(s):  
Bogna Rudolf ◽  
Janusz Zakrzewski ◽  
Grzegorz Celichowski ◽  
Michèle Salmain ◽  
Anne Vessières ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Specific Binding ◽  
Fourier Transform Spectroscopy ◽  
Diffuse Reflectance Infrared

ANALYTICAL APPLICATIONS OF DIFFUSE REFLECTANCE INFRARED FOURIER TRANSFORM SPECTROSCOPY

1982 ◽  
pp. 299-309 ◽  
Author(s):  
Peter R. Griffiths ◽  
S. Agyare Yeboah ◽  
Issam M. Hamadeh ◽  
Pamela J. Duff ◽  
Wang-Jih Yang ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Analytical Applications ◽  
Diffuse Reflectance Infrared

scholarly journals Development of a diffuse reflectance infrared fourier transform spectroscopy (DRIFTS) cell for the in situ analysis of co-electrolysis in a solid oxide cell

2015 ◽  
Vol 182 ◽  
pp. 97-111 ◽  
Author(s):  
Denis J. Cumming ◽  
Christopher Tumilson ◽  
S. F. Rebecca Taylor ◽  
Sarayute Chansai ◽  
Ann V. Call ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Diffuse Reflectance ◽  
Fourier Transform Spectroscopy ◽  
Transport Processes ◽  
Solid Oxide ◽  
Electrochemical Measurements ◽  
Ex Situ ◽  
Diffuse Reflectance Infrared ◽  
Solid Oxide Cell

Co-electrolysis of carbon dioxide and steam has been shown to be an efficient way to produce syngas, however further optimisation requires detailed understanding of the complex reactions, transport processes and degradation mechanisms occurring in the solid oxide cell (SOC) during operation. Whilst electrochemical measurements are currently conducted in situ, many analytical techniques can only be used ex situ and may even be destructive to the cell (e.g. SEM imaging of the microstructure). In order to fully understand and characterise co-electrolysis, in situ monitoring of the reactants, products and SOC is necessary. Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) is ideal for in situ monitoring of co-electrolysis as both gaseous and adsorbed CO and CO2 species can be detected, however it has previously not been used for this purpose. The challenges of designing an experimental rig which allows optical access alongside electrochemical measurements at high temperature and operates in a dual atmosphere are discussed. The rig developed has thus far been used for symmetric cell testing at temperatures from 450 °C to 600 °C. Under a CO atmosphere, significant changes in spectra were observed even over a simple Au|10Sc1CeSZ|Au SOC. The changes relate to a combination of CO oxidation, the water gas shift reaction, carbonate formation and decomposition processes, with the dominant process being both potential and temperature dependent.

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