Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite
Authors
Mravik, ŽeljkoBajuk Bogdanović, Danica

Marković, Smilja

Kovač, Janez

Holclajtner Antunović, Ivanka

Jovanović, Zoran

Conference object (Published version)
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The rich surface chemistry and large surface area of graphene oxide (GO) provide a platform for various functional materials that synergistically enhance charge storage properties of the composite. In present work we have investigated interaction between GO and 12- thungstophosphoric acid (WPA) in their nanocomposites as a function of different mass ratio of constituents. For this purpose, the Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometry (XPS), temperature programmed desorption method (TPD) and thermogravimetric/differential thermal analysis (TGA-DTA) methods were used. FTIR spectra have shown shifts and splitting of characteristic bands of WPA as a result of interactions with GO. Both XPS and TPD methods have shown an initial decrease of the total amount of surface oxygen groups of GO, with a minimum at around 10 wt.% of WPA, above which a restoration of the amount of surface oxygen groups was noticed. TGA-DTA analysis revealed an improved thermal s...tability of the material up to 25 wt.% of WPA; at higher loading of WPA the thermal properties of nanocomposite became alike to the ones of individual components. The obtained results suggest optimal conditions for preparation of GO-WPA nanocomposites for electrochemical charge storage applications.
Keywords:
graphene oxide / 12-tungstophosphoric acid / nanocomposites / electrochemical applications / functional materialsSource:
Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018, 2018, 110-110Publisher:
- Belgrade : Materials Research Society of Serbia
Funding / projects:
- Lithium-ion batteries and fuel cells - research and development (RS-45014)
- Physics and Chemistry with Ion Beams (RS-45006)
- Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications (RS-172043)
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Mravik, Željko AU - Bajuk Bogdanović, Danica AU - Marković, Smilja AU - Kovač, Janez AU - Holclajtner Antunović, Ivanka AU - Jovanović, Zoran PY - 2018 UR - https://dais.sanu.ac.rs/123456789/3666 AB - The rich surface chemistry and large surface area of graphene oxide (GO) provide a platform for various functional materials that synergistically enhance charge storage properties of the composite. In present work we have investigated interaction between GO and 12- thungstophosphoric acid (WPA) in their nanocomposites as a function of different mass ratio of constituents. For this purpose, the Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometry (XPS), temperature programmed desorption method (TPD) and thermogravimetric/differential thermal analysis (TGA-DTA) methods were used. FTIR spectra have shown shifts and splitting of characteristic bands of WPA as a result of interactions with GO. Both XPS and TPD methods have shown an initial decrease of the total amount of surface oxygen groups of GO, with a minimum at around 10 wt.% of WPA, above which a restoration of the amount of surface oxygen groups was noticed. TGA-DTA analysis revealed an improved thermal stability of the material up to 25 wt.% of WPA; at higher loading of WPA the thermal properties of nanocomposite became alike to the ones of individual components. The obtained results suggest optimal conditions for preparation of GO-WPA nanocomposites for electrochemical charge storage applications. PB - Belgrade : Materials Research Society of Serbia C3 - Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018 T1 - Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite SP - 110 EP - 110 UR - https://hdl.handle.net/21.15107/rcub_dais_3666 ER -
@conference{ author = "Mravik, Željko and Bajuk Bogdanović, Danica and Marković, Smilja and Kovač, Janez and Holclajtner Antunović, Ivanka and Jovanović, Zoran", year = "2018", abstract = "The rich surface chemistry and large surface area of graphene oxide (GO) provide a platform for various functional materials that synergistically enhance charge storage properties of the composite. In present work we have investigated interaction between GO and 12- thungstophosphoric acid (WPA) in their nanocomposites as a function of different mass ratio of constituents. For this purpose, the Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometry (XPS), temperature programmed desorption method (TPD) and thermogravimetric/differential thermal analysis (TGA-DTA) methods were used. FTIR spectra have shown shifts and splitting of characteristic bands of WPA as a result of interactions with GO. Both XPS and TPD methods have shown an initial decrease of the total amount of surface oxygen groups of GO, with a minimum at around 10 wt.% of WPA, above which a restoration of the amount of surface oxygen groups was noticed. TGA-DTA analysis revealed an improved thermal stability of the material up to 25 wt.% of WPA; at higher loading of WPA the thermal properties of nanocomposite became alike to the ones of individual components. The obtained results suggest optimal conditions for preparation of GO-WPA nanocomposites for electrochemical charge storage applications.", publisher = "Belgrade : Materials Research Society of Serbia", journal = "Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018", title = "Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite", pages = "110-110", url = "https://hdl.handle.net/21.15107/rcub_dais_3666" }
Mravik, Ž., Bajuk Bogdanović, D., Marković, S., Kovač, J., Holclajtner Antunović, I.,& Jovanović, Z.. (2018). Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018 Belgrade : Materials Research Society of Serbia., 110-110. https://hdl.handle.net/21.15107/rcub_dais_3666
Mravik Ž, Bajuk Bogdanović D, Marković S, Kovač J, Holclajtner Antunović I, Jovanović Z. Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018. 2018;:110-110. https://hdl.handle.net/21.15107/rcub_dais_3666 .
Mravik, Željko, Bajuk Bogdanović, Danica, Marković, Smilja, Kovač, Janez, Holclajtner Antunović, Ivanka, Jovanović, Zoran, "Study of the interaction between graphene oxide and 12-tungstophosphoric acid in their nanocomposite" in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018 (2018):110-110, https://hdl.handle.net/21.15107/rcub_dais_3666 .