scholarly journals Surface-specific vibrational spectroscopy of the water/silica interface: screening and interference

2017 ◽  
Vol 19 (25) ◽  
pp. 16875-16880 ◽  
Author(s):  
Jan Schaefer ◽  
Grazia Gonella ◽  
Mischa Bonn ◽  
Ellen H. G. Backus
Keyword(s):  
Molecular Structure ◽  
Vibrational Spectroscopy ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Frequency Generation

Surface-specific vibrational sum-frequency generation spectroscopy (V-SFG) is used to obtain information about the molecular structure at charged interfaces.

Hydrogen order at the surface of ice Ih revealed by vibrational spectroscopy

2020 ◽  
Vol 56 (33) ◽  
pp. 4563-4566 ◽  
Author(s):  
Yuki Nojima ◽  
Yuki Shioya ◽  
Hajime Torii ◽  
Shoichi Yamaguchi
Keyword(s):  
Vibrational Spectroscopy ◽  
Sum Frequency Generation ◽  
Theoretical Modeling ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Frequency Generation

A combination of heterodyne-detected sum frequency generation spectroscopy and theoretical modeling elucidates that the surface of ice Ih at 100 K has hydrogen order with the OH group pointing upward to the air (“H-up” orientation).

scholarly journals Surface sum-frequency vibrational spectroscopy of nonpolar media

2015 ◽  
Vol 112 (19) ◽  
pp. 5883-5887 ◽  
Author(s):  
Shumei Sun ◽  
Chuanshan Tian ◽  
Y. Ron Shen
Keyword(s):  
Vibrational Spectroscopy ◽  
Sum Frequency Generation ◽  
Inversion Symmetry ◽  
Reflection And Transmission ◽  
Spectroscopic Measurements ◽  
Sum Frequency ◽  
Sum Frequency Generation Spectroscopy ◽  
Phase Sensitive ◽  
Frequency Generation

Sum-frequency generation spectroscopy is surface specific only if the bulk contribution to the signal is negligible. Negligible bulk contribution is, however, not necessarily true, even for media with inversion symmetry. The inevitable challenge is to find the surface spectrum in the presence of bulk contribution, part of which has been believed to be inseparable from the surface contribution. Here, we show that, for nonpolar media, it is possible to separately deduce surface and bulk spectra from combined phase-sensitive sum-frequency vibrational spectroscopic measurements in reflection and transmission. The study of benzene interfaces is presented as an example.

Sum Frequency Generation Vibrational Spectroscopy of 1,3-Butadiene Hydrogenation on 4 nm Pt@SiO2, Pd@SiO2, and Rh@SiO2 Core–Shell Catalysts

Nano Letters ◽  
2014 ◽  
Vol 15 (1) ◽  
pp. 39-44 ◽  
Author(s):  
James M. Krier ◽  
William D. Michalak ◽  
Xiaojun Cai ◽  
Lindsay Carl ◽  
Kyriakos Komvopoulos ◽  
...  
Keyword(s):  
Vibrational Spectroscopy ◽  
Sum Frequency Generation ◽  
Core Shell ◽  
Sum Frequency ◽  
Frequency Generation ◽  
Butadiene Hydrogenation
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