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Castro-Ladino JR, Cuy-Hoyos CA, Prías-Barragán JJ. Basic physical properties and potential application of graphene oxide fibers synthesized from rice husk. Sci Rep 2023; 13:17967. [PMID: 37864095 PMCID: PMC10589357 DOI: 10.1038/s41598-023-45251-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023] Open
Abstract
The synthesis method and correlation between compositional, vibrational, and electrical properties in graphene oxide fibers (GOF) are presented and discussed here, as well as a potential application through the development of a heater device based on GOF. The GOF samples were synthesized from rice husk (RH), via a thermal decomposition method, employing an automated pyrolysis system with a controlled nitrogen atmosphere, varying carbonization temperature (TCA) from 773 to 1273 K. The compositional analysis shows peaks in the XPS spectrum associated with C1s and O1s, with presence of hydroxyl and epoxy bridges; the oxide concentration (OC) of samples varied from 0.21 to 0.28, influenced by TCA. The GOF samples exhibit fiber morphology, vibrational characteristics which are typical of graphene oxide multilayers, and electrical behavior that scales with OC. The electrical response shows that OC decreases and increases electrical conductivity at the polycrystalline phase, possibly attributed to the desorption of some oxides and organic compounds. In addition, physical correlations between OC and its vibrational response showed that decreasing OC increases edge defect density and decreases crystal size as a result of thermal decomposition processes. The correlation between OC and physical properties suggests that by controlling the OC in GOF, it was possible to modify vibrational and electrical properties of great interest in fabrication of advanced electronics; consequently, we show a potential application of GOF samples by developing an electrically controlled heater device.
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Affiliation(s)
- J R Castro-Ladino
- Grupo de Investigación en Tecnologías Emergentes (GITEM), Universidad de los Llanos, Villavicencio, 500001, Colombia
- Interdisciplinary Institute of Sciences, Doctoral Program in Physical Sciences and Electronic Instrumentation Technology Program at Universidad del Quindío, Armenia, 630004, Colombia
| | - C A Cuy-Hoyos
- Grupo de Investigación en Tecnologías Emergentes (GITEM), Universidad de los Llanos, Villavicencio, 500001, Colombia
| | - J J Prías-Barragán
- Interdisciplinary Institute of Sciences, Doctoral Program in Physical Sciences and Electronic Instrumentation Technology Program at Universidad del Quindío, Armenia, 630004, Colombia.
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Arango Hoyos BE, Osorio HF, Valencia Gómez EK, Guerrero Sánchez J, Del Canto Palominos AP, Larrain FA, Prías Barragán JJ. Exploring the capture and desorption of CO 2 on graphene oxide foams supported by computational calculations. Sci Rep 2023; 13:14476. [PMID: 37660192 PMCID: PMC10475065 DOI: 10.1038/s41598-023-41683-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023] Open
Abstract
In the last decade, the highest levels of greenhouse gases (GHG) in the atmosphere have been recorded, with carbon dioxide (CO2) being one of the GHGs that most concerns mankind due to the rate at which it is generated on the planet. Given its long time of permanence in the atmosphere (between 100 to 150 years); this has deployed research in the scientific field focused on the absorption and desorption of CO2 in the atmosphere. This work presents the study of CO2 adsorption employing materials based on graphene oxide (GO), such as GO foams with different oxidation percentages (3.00%, 5.25%, and 9.00%) in their structure, obtained via an environmentally friendly method. The characterization of CO2 adsorption was carried out in a closed system, within which were placed the GO foams and other CO2 adsorbent materials (zeolite and silica gel). Through a controlled chemical reaction, production of CO2 was conducted to obtain CO2 concentration curves inside the system and calculate from these the efficiency, obtained between 86.28 and 92.20%, yield between 60.10 and 99.50%, and effectiveness of CO2 adsorption of the materials under study. The results obtained suggest that GO foams are a promising material for carbon capture and the future development of a new clean technology, given their highest CO2 adsorption efficiency and yield.
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Affiliation(s)
- Bryan E Arango Hoyos
- Energy Engineering, Faculty of Engineering and Sciences, Universidad Adolfo Ibáñez, 7941169, Santiago, Chile
| | - H Franco Osorio
- Electronic Instrumentation Technology Program, Faculty of Basic Science and Technology, Universidad del Quindío, 630001, Armenia, Colombia
| | - E K Valencia Gómez
- Doctoral Program in Physical Sciences, Interdisciplinary Institute of Sciences, Universidad del Quindío, 630004, Armenia, Colombia
| | - J Guerrero Sánchez
- Virtual Materials Modeling Laboratory (LVMM), Center for Nanoscience and Nanotechnology, Universidad Nacional Autónoma de México, Ensenada, 22860, Mexico
| | - A P Del Canto Palominos
- Energy Engineering, Faculty of Engineering and Sciences, Universidad Adolfo Ibáñez, 7941169, Santiago, Chile
| | - Felipe A Larrain
- Energy Engineering, Faculty of Engineering and Sciences, Universidad Adolfo Ibáñez, 7941169, Santiago, Chile
| | - J J Prías Barragán
- Electronic Instrumentation Technology Program, Faculty of Basic Science and Technology, Universidad del Quindío, 630001, Armenia, Colombia.
- Doctoral Program in Physical Sciences, Interdisciplinary Institute of Sciences, Universidad del Quindío, 630004, Armenia, Colombia.
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3
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Sánchez-Trujillo DJ, Osorio-Maldonado LV, Prías-Barragán JJ. Temperature dependence of electrical conductivity and variable hopping range mechanism on graphene oxide films. Sci Rep 2023; 13:4810. [PMID: 36959218 PMCID: PMC10036326 DOI: 10.1038/s41598-023-31778-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/17/2023] [Indexed: 03/25/2023] Open
Abstract
The rapid development of optoelectronic applications for optical-to-electrical conversion has increased the interest in graphene oxide material. Here, graphene oxide films (GOF) were used as source material in an infrared photodetector configuration and the temperature dependence of the electrical conductivity was studied. GOF were prepared by the double-thermal decomposition (DTD) method at 973 K, with a fixed carbonization temperature, in a pyrolysis system, under a controlled nitrogen atmosphere, over quartz substrates. Graphene oxide films were mechanically supported in a photodetector configuration on Bakelite substrates and electrically contacted with copper wires and high-purity silver paint. Morphological images from the GOF's surface were taken employing a scanning electron microscope and observed a homogeneous surface which favored the electrical contacts deposition. Vibrational characteristics were studied employing Raman spectroscopy and determined the typical graphene oxide bands. GOF were used to discuss the effect of temperature on the film's electrical conductivity. Current-voltage (I-V) curves were taken for several temperatures varying from 20 to 300 K and the electrical resistance values were obtained from 142.86 to 2.14 kΩ. The GOF electrical conductivity and bandgap energy (Eg) were calculated, and it was found that when increasing temperature, the electrical conductivity increased from 30.33 to 2023.97 S/m, similar to a semiconductor material, and Eg shows a nonlinear change from 0.33 to 0.12 eV, with the increasing temperature. Conduction mechanism was described mainly by three-dimensional variable range hopping (3D VRH). Additionally, measurements of voltage and electrical resistance, as a function of wavelength were considered, for a spectral range between 1300 and 3000 nm. It was evidenced that as the wavelength becomes longer, a greater number of free electrons are generated, which contributes to the electrical current. The external quantum efficiency (EQE) was determined for this proposed photodetector prototype, obtaining a value of 40%, similar to those reported for commercial semiconductor photodetectors. This study provides a groundwork for further development of graphene oxide films with high conductivity in large-scale preparation.
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Affiliation(s)
- D J Sánchez-Trujillo
- Electronic Engineering Program, Faculty of Engineering at Universidad del Quindío, 630004, Armenia, Colombia
- Doctoral Program in Physical Sciences, Interdisciplinary Institute of Sciences, Electronic Instrumentation Technology Program, Faculty of Basic Sciences and Technology at Universidad del Quindío, 630004, Armenia, Colombia
| | - L V Osorio-Maldonado
- Electronic Engineering Program, Faculty of Engineering at Universidad del Quindío, 630004, Armenia, Colombia
| | - J J Prías-Barragán
- Doctoral Program in Physical Sciences, Interdisciplinary Institute of Sciences, Electronic Instrumentation Technology Program, Faculty of Basic Sciences and Technology at Universidad del Quindío, 630004, Armenia, Colombia.
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Gómez E, Ramírez Guarnizo NA, Perea JD, López AS, Prías-Barragán JJ. Exploring Molecular and Electronic Property Predictions of Reduced Graphene Oxide Nanoflakes via Density Functional Theory. ACS OMEGA 2022; 7:3872-3880. [PMID: 35155884 PMCID: PMC8829850 DOI: 10.1021/acsomega.1c00963] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/19/2021] [Indexed: 05/04/2023]
Abstract
In this research, we perform a theoretical interpretation of molecular and electronic properties of reduced graphene oxide (rGO) nanoflakes through the density functional theory. Here, two pristine graphene nanoflake systems were passivated by hydrogen atoms at their edges, armchair (C58H20) and zigzag (C54H20); besides, we implemented 12 rGO systems with a range of low oxide coverage (1, 3, and 4%). Computational calculations were carried out employing the functional hybrid B3LYP and the basis 6-31G(d, p) and 6-311G(d, p) levels of theory. We brought the proposed molecular structures to a stable minimum. We determined the global reactivity descriptors through chemical potential, hardness, softness, and index of electrophilicity. Besides, the maps of electrostatic potential were generated. We found that the hydroxyl and epoxy functional groups dope the graphene molecule in p-type and n-type forms, respectively. In addition, we could attribute the increases of the oxide coverage and the chemical potential to the softness of the molecule. These results suggest that structures with this type of doping can help in developing advanced electronics of sensors and devices.
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Affiliation(s)
- Erica
Valencia Gómez
- Chemistry
Program, Faculty of Basic Science and Technology, University of Quindío, Cra 15#12N, Armenia 460, Quindío, Colombia
| | - Nathalia A. Ramírez Guarnizo
- Chemistry
Program, Faculty of Basic Science and Technology, University of Quindío, Cra 15#12N, Armenia 460, Quindío, Colombia
| | - Jose Dario Perea
- University
of Toronto, Chemistry Sandford Fleming Building10 King’s College Rd Toronto,
ON M5S 3G4, Toronto, Ontario M5S 1A1, Canada
| | - Alberto Sánchez López
- Chemistry
Program, Faculty of Basic Science and Technology, University of Quindío, Cra 15#12N, Armenia 460, Quindío, Colombia
| | - Jhon J. Prías-Barragán
- Universidad
del Quindio, Interdisciplinary Institute of Sciences, Cra. 15 Calle 12 Norte, Armenia 460, Quindío, Colombia
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