Oral: Inverse Problem Techniques for Pattern Recognition in HR-TEM Images of Graphene Oxide

ORAL

Abstract

Graphene oxide (GO) is widely used in flexible electronics and nanotechnology. High-resolution transmission electron microscopy (HR-TEM) reveals atomic-level structures; however, interpreting these images is challenging owing to noise and polycrystalline complexities. This study explores inverse problem techniques, specifically Sparse Identification of Nonlinear Dynamics (SINDy), to enhance pattern recognition in HR-TEM images of GO and identify key structural features, such as hydroxyl and epoxy bridges. By applying SINDy to the simulated and experimental data, it was inferred a set of potential governing equations that capture these patterns, even in noisy datasets. This approach aims to explain GO's structural properties of GO and to advance its application in nanotechnology.

*Special acknowledge support from the Minister of Science Technology and Innovation at Colombia and ICETEX under contract 2022-0455 with project 82349. Also, special acknowledge support from Universidad del Quindío by projects 1121 and 1131.

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Publication: 1. J. J. Prías-Barragán, L. M. Mejía-Mendoza, M. Velasco, J. D. Perea, A. Aspuru-Guzik and C. Acosta Minoli. Graphene oxide: Comparisons between experimental and computational simulation of HR-TEM images. Research & Reviews: Journal of Material Sciences 11(2), 1-19 (2023). DOI: 10.4172/2321-6212.11.2.001.
2. F. A. Hoyos-Ariza, J. J. Prias-Barragan, D. H. Galván, J. Guerrero-Sánchez, H. Ariza-Calderon. Graphene nanostructures functionalization: Hydrogen bonds and oxide coverage effect. Materials Today Communications 36, 106861 (2023). DOI: 10.1016/j.mtcomm.2023.106861.
3. D. J. Sánchez‑Trujillo, L. V. Osorio‑Maldonado, J. J. Prías‑Barragán. Temperature dependence of electrical conductivity and variable hopping range mechanism on graphene oxide films. Nature: Scientific Reports 13, 4810 (2023). https://doi.org/10.1038/s41598-023-31778-3.
4. J. R. Castro‑Ladino, C. A. Cuy‑Hoyos and J. J. Prías‑Barragán. Basic physical properties and potential application of graphene oxide fibers synthesized from rice husk. Nature: Sci Rep 13, 17967 (2023). https://doi.org/10.1038/s41598-023-45251-8.
5. B. E. Arango Hoyos, H. Franco Osorio, E. K. Valencia Gómez, J. Guerrero Sánchez, A. P. Del Canto Palominos, Felipe A. Larrain and J. J. Prías Barragán. Exploring the capture and desorption of CO2 on graphene oxide foams supported by computational calculations. Nature: Sci Rep 13, 14476 (2023). https://doi.org/10.1038/s41598-023-41683-4.

Presenters

  • C. A. Acosta-Minoli

    • University of Quindio

Authors

  • J. J. Prias-Barragan

    • Interdisciplinary Institute of Sciences, Doctoral program in Physical Science and EITP, Universidad del Quindío, Armenia, Colombia
    • Universidad del Quindio
    • University of Quindio

  • E. A. Caldrón-Barreto

    • University of Quindio

  • C. A. Acosta-Minoli

    • University of Quindio