Probing the Structure of Water at the Interface with Graphene Oxide Using Sum Frequency Generation Vibrational Spectroscopy

Author(s):  
Yongming Hong ◽  
Jiali He ◽  
Cuiyun Zhang ◽  
Xinping Wang
2018 ◽  
Author(s):  
Sandeep K. Reddy ◽  
Raphael Thiraux ◽  
Bethany A. Wellen Rudd ◽  
Lu Lin ◽  
Tehseen Adel ◽  
...  

Vibrational sum-frequency generation (vSFG) spectroscopy is used to determine the molecular structure of water at the interface of palmitic acid monolayers. Both measured and calculated spectra display speci c features due to third-order contributions to the vSFG response which are associated with nite interfacial electric potentials. We demonstrate that theoretical modeling enables to separate the third-order contributions, thus allowing for a systematic analysis of the strictly surface-sensitive, second-order component of the vSFG response. This study provides fundamental, molecular-level insights into the interfacial structure of water in a neutral surfactant system with relevance to single layer bio-membranes and environmentally relevant sea-spray aerosols. These results emphasize the key role that computer simulations can play in interpreting vSFG spectra and revealing microscopic details of water at complex interfaces, which can be difficult to extract from experiments due to the mixing of second-order, surface-sensitive and third-order, bulk-dependent contributions to the vSFG response.


Nano Letters ◽  
2014 ◽  
Vol 15 (1) ◽  
pp. 39-44 ◽  
Author(s):  
James M. Krier ◽  
William D. Michalak ◽  
Xiaojun Cai ◽  
Lindsay Carl ◽  
Kyriakos Komvopoulos ◽  
...  

2009 ◽  
Vol 96 (2) ◽  
pp. 345-356 ◽  
Author(s):  
Orsolya Hakkel ◽  
Zoltán Pászti ◽  
Tamás Keszthelyi ◽  
Krisztina Frey ◽  
László Guczi

2012 ◽  
Vol 91 ◽  
pp. 215-218 ◽  
Author(s):  
Takuya Kondo ◽  
Makoto Gemmei-Ide ◽  
Hiromi Kitano ◽  
Kohji Ohno ◽  
Hidenori Noguchi ◽  
...  

2017 ◽  
Vol 19 (25) ◽  
pp. 16875-16880 ◽  
Author(s):  
Jan Schaefer ◽  
Grazia Gonella ◽  
Mischa Bonn ◽  
Ellen H. G. Backus

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


Sign in / Sign up

Export Citation Format

Share Document