Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications

The growing of graphene on irregular 3D Ni structure demonstrates to be aninteresting platform for, molecular sensing, GERS, and SERS applications after galvanicexchange of Ag + ions. Raman, SEM (EDS), optical images, and diffuse reflectance exhibitthat graphene grows in multilayer (MLG) fashion wit...

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Autores principales: Messina, María Mercedes, Picone, Andrea Lorena, Dos Santos Claro, Paula Cecilia, Ruiz, Remigio, Saccone, Fabio Daniel, Romano, Rosana Mariel, Ibáñez, Francisco Javier
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Química
Sers
Graphene
Pesticide
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96109
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96109
record_format dspace
spelling I19-R120-10915-961092024-02-19T13:39:54Z http://sedici.unlp.edu.ar/handle/10915/96109 Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications Messina, María Mercedes Picone, Andrea Lorena Dos Santos Claro, Paula Cecilia Ruiz, Remigio Saccone, Fabio Daniel Romano, Rosana Mariel Ibáñez, Francisco Javier 2018-04 2020-05-18T13:19:15Z en Química Sers Graphene Pesticide The growing of graphene on irregular 3D Ni structure demonstrates to be aninteresting platform for, molecular sensing, GERS, and SERS applications after galvanicexchange of Ag + ions. Raman, SEM (EDS), optical images, and diffuse reflectance exhibitthat graphene grows in multilayer (MLG) fashion with different stacking configurations.Statistics performed employing Raman show that as-grown graphene can be classified intwo main stacking configurations: AB (or Bernal stacking) and rotated graphene which areseparated by a 2D full-width half maximum (fwhm) threshold of ~30 cm -1 . Rotatedstacking senses low concentrations of methylene blue (MB) at 10 -6 M concentration,whereas AB-stacking seems to be much less sensitive upon molecular adsorption. Galvanicexchange of Ag leads to agglomerates preferentially formed on top graphene wrinkleswhich ultimately became target-spots for performing SERS. Our experiments demonstratethat as-grown graphene, comprised of different stacking configurations, can be used as amolecular sensor and detect nanomolar concentrations of MB and thiram (by SERSapplications), after galvanic exchange with Ag. Centro de Química Inorgánica Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Consejo Nacional de Investigaciones Científicas y Técnicas Articulo Preprint http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 9152-9161
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Sers
Graphene
Pesticide
spellingShingle Química
Sers
Graphene
Pesticide
Messina, María Mercedes
Picone, Andrea Lorena
Dos Santos Claro, Paula Cecilia
Ruiz, Remigio
Saccone, Fabio Daniel
Romano, Rosana Mariel
Ibáñez, Francisco Javier
Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications
topic_facet Química
Sers
Graphene
Pesticide
description The growing of graphene on irregular 3D Ni structure demonstrates to be aninteresting platform for, molecular sensing, GERS, and SERS applications after galvanicexchange of Ag + ions. Raman, SEM (EDS), optical images, and diffuse reflectance exhibitthat graphene grows in multilayer (MLG) fashion with different stacking configurations.Statistics performed employing Raman show that as-grown graphene can be classified intwo main stacking configurations: AB (or Bernal stacking) and rotated graphene which areseparated by a 2D full-width half maximum (fwhm) threshold of ~30 cm -1 . Rotatedstacking senses low concentrations of methylene blue (MB) at 10 -6 M concentration,whereas AB-stacking seems to be much less sensitive upon molecular adsorption. Galvanicexchange of Ag leads to agglomerates preferentially formed on top graphene wrinkleswhich ultimately became target-spots for performing SERS. Our experiments demonstratethat as-grown graphene, comprised of different stacking configurations, can be used as amolecular sensor and detect nanomolar concentrations of MB and thiram (by SERSapplications), after galvanic exchange with Ag.
format Articulo
Preprint
author Messina, María Mercedes
Picone, Andrea Lorena
Dos Santos Claro, Paula Cecilia
Ruiz, Remigio
Saccone, Fabio Daniel
Romano, Rosana Mariel
Ibáñez, Francisco Javier
author_facet Messina, María Mercedes
Picone, Andrea Lorena
Dos Santos Claro, Paula Cecilia
Ruiz, Remigio
Saccone, Fabio Daniel
Romano, Rosana Mariel
Ibáñez, Francisco Javier
author_sort Messina, María Mercedes
title Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications
title_short Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications
title_full Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications
title_fullStr Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications
title_full_unstemmed Graphene Grown on Ni Foam: Molecular Sensing, Graphene-Enhanced Raman Scattering, and Galvanic Exchange for Surface-Enhanced Raman Scattering Applications
title_sort graphene grown on ni foam: molecular sensing, graphene-enhanced raman scattering, and galvanic exchange for surface-enhanced raman scattering applications
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/96109
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