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- Title
Raman maps reveal heterogeneous hydrogenation on carbon materials.
- Authors
daFonseca, Bruno G.; Thind, Sapanbir S.; Brolo, Alexandre G.
- Abstract
This work presents an application of Raman spectroscopy as a tool to investigate heterogeneity in the composition of carbon materials obtained electrochemically. A combination of Raman maps and histograms has been used to describe samples synthesized via wet chemistry. The results showed that a simple evaluation of an average spectrum or one single spectrum per sample would have hidden important compositional variations present in the film. The Raman maps revealed heterogeneous hydrogenation in different areas of the carbon films, whereas histograms described the statistical relevance of the classification of the different types of carbon materials. The effect of electrosynthesis parameters on the quality of the films was also investigated. As the deposition time increased, the carbon films showed higher homogeneity in their spatial composition. The nature of the electrolyte led to differences in film functionalization and on the degree of hydrogenation.
- Subjects
CARBON films; HYDROGENATION; WET chemistry; ELECTROSYNTHESIS; RAMAN spectroscopy; CARBON
- Publication
Journal of Raman Spectroscopy, 2021, Vol 52, Issue 2, p516
- ISSN
0377-0486
- Publication type
Article
- DOI
10.1002/jrs.6042