scholarly journals In situ combined stress‐ and temperature‐dependent Raman spectroscopy of Li‐doped (Na,K)NbO 3

2021 ◽  
Author(s):  
Neamul H. Khansur ◽  
Udo R. Eckstein ◽  
Michael Bergler ◽  
Alexander Martin ◽  
Ke Wang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Combined Stress ◽  
Temperature Dependent

scholarly journals Advanced Synthesis and Characterization of Vanadia/Titania Catalysts through a Molecular Approach

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 322
Author(s):  
Eleni Tella ◽  
Antonios Trimpalis ◽  
Athanasios Tsevis ◽  
Christos Kordulis ◽  
Alexis Lycourghiotis ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Temperature Dependent ◽  
In Situ Raman Spectroscopy ◽  
Monomeric Species ◽  
Synthesis Conditions ◽  
In Situ Raman ◽  
Titania Surface ◽  
Inner Sphere

Vanadia/titania catalysts were synthesized by the equilibrium deposition filtration (EDF) method, which is a synthesis route that follows a molecular-level approach. The type of interfacial deposition as well as the interfacial speciation of the deposited oxo-V(V) species were determined by means of a model that takes into account experimental “proton-ion” curves and “adsorption edges”. It is shown that at pH ≥ 9.5, the deposition proceeds exclusively through the formation of mono-substituted inner sphere monomeric species in an “umbrella”-like Ti–OV(OH)2O configuration, whilst with lowering of the pH, a second species, namely the disubstituted inner sphere quadrameric species in a (Ti-O)2V4O10 configuration possessing two mono-oxo V=O and two di-oxo V(=O)2 terminations gradually prevails, which is in co-existence with the monomeric species. Raman spectroscopy is used for verifying the solution speciation, which is different compared to the interfacial speciation of the deposited oxo-V(V) species. Furthermore, in situ Raman spectroscopy was used to verify the model-predicted interfacial speciation of the deposited oxo-V(V) species and to monitor the temperature-dependent evolution up to 430 °C. Hence, a controlled formation of a specific vanadia species on a titania surface is enabled, which, depending on the synthesis conditions, can result in specific catalyst characteristics and thus possibly different catalytic behavior for a specific reaction.

Phase Transformation of Metastable ZnSnO3 Upon Thermal Decomposition by In-Situ Temperature-Dependent Raman Spectroscopy

2015 ◽  
Vol 98 (12) ◽  
pp. 4044-4049 ◽  
Author(s):  
Tanujjal Bora ◽  
Muna H. Al-Hinai ◽  
Ashraf T. Al-Hinai ◽  
Joydeep Dutta
Keyword(s):  
Thermal Decomposition ◽  
Raman Spectroscopy ◽  
Phase Transformation ◽  
Temperature Dependent

In Situ Raman Spectroscopy Studies on La2CaB10O19 Crystal Growth

2020 ◽  
Vol 20 (10) ◽  
pp. 6604-6609
Author(s):  
Shanshan Liu ◽  
Guochun Zhang ◽  
Kai Feng ◽  
Yanyang Han ◽  
Tao He ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Crystal Growth ◽  
In Situ Raman Spectroscopy ◽  
In Situ Raman ◽  
Spectroscopy Studies

Real-time monitoring of high-gravity corn mash fermentation using in situ raman spectroscopy

2013 ◽  
Vol 110 (6) ◽  
pp. 1654-1662 ◽  
Author(s):  
Steven R. Gray ◽  
Steven W. Peretti ◽  
H. Henry Lamb
Keyword(s):  
Raman Spectroscopy ◽  
Real Time ◽  
High Gravity ◽  
Real Time Monitoring ◽  
In Situ Raman Spectroscopy ◽  
In Situ Raman ◽  
Corn Mash

scholarly journals Retraction of “High-Capacitance Mechanism for Ti3C2Tx MXene by in Situ Electrochemical Raman Spectroscopy Investigation″

ACS Nano ◽  
2021 ◽  
Author(s):  
Minmin Hu ◽  
Zhaojin Li ◽  
Tao Hu ◽  
Shihao Zhu ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Capacitance

In situ Raman spectroscopy for cultural heritage studies

2021 ◽  
Author(s):  
Anastasia Rousaki ◽  
Peter Vandenabeele
Keyword(s):  
Raman Spectroscopy ◽  
Cultural Heritage ◽  
In Situ Raman Spectroscopy ◽  
In Situ Raman ◽  
Heritage Studies

The use of in-situ Raman spectroscopy in investigating carbon materials as the anodes of alkali metal-ion batteries

Carbon ◽  
2021 ◽  
Vol 177 ◽  
pp. 428
Author(s):  
Xiaoqin Cheng ◽  
Huijun Li ◽  
Zhenxin Zhao ◽  
Yong-zhen Wang ◽  
Xiaomin Wang
Keyword(s):  
Raman Spectroscopy ◽  
Alkali Metal ◽  
Metal Ion ◽  
Carbon Materials ◽  
In Situ Raman Spectroscopy ◽  
Alkali Metal Ion ◽  
In Situ Raman
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