Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite
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2017
Authors
Jovanović, Zoran M.Holclajtner-Antunović, Ivanka D.
Bajuk-Bogdanović, Danica V.
Jovanović, Sonja
Mravik, Željko
Vujković, Milica
Article (Published version)
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The influence of thermal treatment in an inert atmosphere on the charge storage properties of graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposite was examined. The transmission electron microscopy analysis revealed high dispersion of WPA on GO matrix, while the surface analysis showed thermal activation of structural changes of WPA and desorption of oxygen functional groups from GO and GO/WPA nanocomposite. Initial GO/WPA nanocomposite had approximately two times higher capacitance compared to initial GO. The thermal treatment of initial GO and GO/WPA to 500 degrees C induced twofold increase of capacitance of GO and 40% increase of GO/WPA, accompanied with significant increase of operating voltage compared to GO (for 300 mV). Above 500 degrees C, a decrease of capacitance of both GO and GO/WPA was observed. The results suggest that understanding of structural changes of components and their interaction is crucial for improvement of electrochemical properties of considere...d composite.
Keywords:
Graphene oxide / 12-tungstophosphoric acid / Nanocomposite / SupercapacitorSource:
Electrochemistry Communications, 2017, 83, 36-40Funding / projects:
- Physics and Chemistry with Ion Beams (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45006)
- Lithium-ion batteries and fuel cells - research and development (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications (RS-MESTD-Basic Research (BR or ON)-172043)
DOI: 10.1016/j.elecom.2017.08.017
ISSN: 1388-2481; 1873-1902
WoS: 000411349500009
Scopus: 2-s2.0-85027990305
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VinčaTY - JOUR AU - Jovanović, Zoran M. AU - Holclajtner-Antunović, Ivanka D. AU - Bajuk-Bogdanović, Danica V. AU - Jovanović, Sonja AU - Mravik, Željko AU - Vujković, Milica PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1737 AB - The influence of thermal treatment in an inert atmosphere on the charge storage properties of graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposite was examined. The transmission electron microscopy analysis revealed high dispersion of WPA on GO matrix, while the surface analysis showed thermal activation of structural changes of WPA and desorption of oxygen functional groups from GO and GO/WPA nanocomposite. Initial GO/WPA nanocomposite had approximately two times higher capacitance compared to initial GO. The thermal treatment of initial GO and GO/WPA to 500 degrees C induced twofold increase of capacitance of GO and 40% increase of GO/WPA, accompanied with significant increase of operating voltage compared to GO (for 300 mV). Above 500 degrees C, a decrease of capacitance of both GO and GO/WPA was observed. The results suggest that understanding of structural changes of components and their interaction is crucial for improvement of electrochemical properties of considered composite. T2 - Electrochemistry Communications T1 - Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite VL - 83 SP - 36 EP - 40 DO - 10.1016/j.elecom.2017.08.017 ER -
@article{ author = "Jovanović, Zoran M. and Holclajtner-Antunović, Ivanka D. and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Mravik, Željko and Vujković, Milica", year = "2017", abstract = "The influence of thermal treatment in an inert atmosphere on the charge storage properties of graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposite was examined. The transmission electron microscopy analysis revealed high dispersion of WPA on GO matrix, while the surface analysis showed thermal activation of structural changes of WPA and desorption of oxygen functional groups from GO and GO/WPA nanocomposite. Initial GO/WPA nanocomposite had approximately two times higher capacitance compared to initial GO. The thermal treatment of initial GO and GO/WPA to 500 degrees C induced twofold increase of capacitance of GO and 40% increase of GO/WPA, accompanied with significant increase of operating voltage compared to GO (for 300 mV). Above 500 degrees C, a decrease of capacitance of both GO and GO/WPA was observed. The results suggest that understanding of structural changes of components and their interaction is crucial for improvement of electrochemical properties of considered composite.", journal = "Electrochemistry Communications", title = "Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite", volume = "83", pages = "36-40", doi = "10.1016/j.elecom.2017.08.017" }
Jovanović, Z. M., Holclajtner-Antunović, I. D., Bajuk-Bogdanović, D. V., Jovanović, S., Mravik, Ž.,& Vujković, M.. (2017). Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite. in Electrochemistry Communications, 83, 36-40. https://doi.org/10.1016/j.elecom.2017.08.017
Jovanović ZM, Holclajtner-Antunović ID, Bajuk-Bogdanović DV, Jovanović S, Mravik Ž, Vujković M. Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite. in Electrochemistry Communications. 2017;83:36-40. doi:10.1016/j.elecom.2017.08.017 .
Jovanović, Zoran M., Holclajtner-Antunović, Ivanka D., Bajuk-Bogdanović, Danica V., Jovanović, Sonja, Mravik, Željko, Vujković, Milica, "Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite" in Electrochemistry Communications, 83 (2017):36-40, https://doi.org/10.1016/j.elecom.2017.08.017 . .