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Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer

[Image: see text] Knowledge of the structure of interfacial water molecules at electrified solid materials is the first step toward a better understanding of important processes at such surfaces, in, e.g., electrochemistry, atmospheric chemistry, and membrane biophysics. As graphene is an interestin...

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Autores principales: Dreier, L. B., Liu, Z., Narita, A., van Zadel, M.-J., Müllen, K., Tielrooij, K.-J., Backus, E. H. G., Bonn, M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6778968/
https://www.ncbi.nlm.nih.gov/pubmed/31602283
http://dx.doi.org/10.1021/acs.jpcc.9b05844
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author Dreier, L. B.
Liu, Z.
Narita, A.
van Zadel, M.-J.
Müllen, K.
Tielrooij, K.-J.
Backus, E. H. G.
Bonn, M.
author_facet Dreier, L. B.
Liu, Z.
Narita, A.
van Zadel, M.-J.
Müllen, K.
Tielrooij, K.-J.
Backus, E. H. G.
Bonn, M.
author_sort Dreier, L. B.
collection PubMed
description [Image: see text] Knowledge of the structure of interfacial water molecules at electrified solid materials is the first step toward a better understanding of important processes at such surfaces, in, e.g., electrochemistry, atmospheric chemistry, and membrane biophysics. As graphene is an interesting material with multiple potential applications such as in transistors or sensors, we specifically investigate the graphene–water interface. We use sum-frequency generation spectroscopy to investigate the pH- and potential-dependence of the interfacial water structure in contact with a chemical vapor deposited (CVD) grown graphene surface. Our results show that the SFG signal from the interfacial water molecules at the graphene layer is dominated by the underlying substrate and that there are water molecules between the graphene and the (hydrophilic) supporting substrate.
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spelling pubmed-67789682019-10-08 Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer Dreier, L. B. Liu, Z. Narita, A. van Zadel, M.-J. Müllen, K. Tielrooij, K.-J. Backus, E. H. G. Bonn, M. J Phys Chem C Nanomater Interfaces [Image: see text] Knowledge of the structure of interfacial water molecules at electrified solid materials is the first step toward a better understanding of important processes at such surfaces, in, e.g., electrochemistry, atmospheric chemistry, and membrane biophysics. As graphene is an interesting material with multiple potential applications such as in transistors or sensors, we specifically investigate the graphene–water interface. We use sum-frequency generation spectroscopy to investigate the pH- and potential-dependence of the interfacial water structure in contact with a chemical vapor deposited (CVD) grown graphene surface. Our results show that the SFG signal from the interfacial water molecules at the graphene layer is dominated by the underlying substrate and that there are water molecules between the graphene and the (hydrophilic) supporting substrate. American Chemical Society 2019-09-09 2019-10-03 /pmc/articles/PMC6778968/ /pubmed/31602283 http://dx.doi.org/10.1021/acs.jpcc.9b05844 Text en Copyright © 2019 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Dreier, L. B.
Liu, Z.
Narita, A.
van Zadel, M.-J.
Müllen, K.
Tielrooij, K.-J.
Backus, E. H. G.
Bonn, M.
Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer
title Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer
title_full Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer
title_fullStr Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer
title_full_unstemmed Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer
title_short Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer
title_sort surface-specific spectroscopy of water at a potentiostatically controlled supported graphene monolayer
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6778968/
https://www.ncbi.nlm.nih.gov/pubmed/31602283
http://dx.doi.org/10.1021/acs.jpcc.9b05844
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