Peruško, Davor

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Authority KeyName Variants
  • Peruško, Davor (73)
Physical processes in the synthesis of advanced nanostructured materials Fabrication and characterization of nano-photonic functional structrues in biomedicine and informatics
SPIRIT - Support of Public and Industrial Research using Ion Beam Technology Thin films of single wall carbon nanotubes and graphene for electronic application
Effects of laser radiation and plasma on novel materials in their synthesis, modification, and analysis SILAMPS - Silicon integrated lasers and optical amplifiers
Slovenian Research Agency [P2-0082] NFFA-Europe - Nanoscience Foundries and Fine Analysis - Europe
Holographic methods for generation of specific wave-fronts to better control quantum coherent effects in laser-atom interactions Functional, Functionalized and Advanced Nanomaterials
Ministry of Science and Environmental Protection of the Republic of Serbia [OI 141013], International Atomic Energy Agency, Vienna Slovenian Research Agency, Ministry of Science, Education, and Sports of the Republic of Croatia, COST Action [MP0903 Nanoalloy]
Slovenian Research Agency [P2-0082], IAEA, Vienna bilateral project Serbia-Slovakia (SK-SRB-2016-0038)
COST Action [MP0903] COST Action [MP0903 Nanoalloy], Center for Multidisciplinary Studies, Serbia
COST [CA17126] European Community [CM1104]
European Community, COST Action [CM1104], Slovenian Research Agency, Ministry of Science, Education, and Sports of the Republic of Croatia European Community, COST Action [MP1203]
European Community [COST Action MP1203, COST Action MP1208] European Community, COST Action [MP1208]
European Community, COST Action [MP1208], National Authority for Research and Innovation in the frame of Nucleus programme [304/2011, 4N/2016] European Union under REA (609427)
German-Serbian DAAD bilateral collaboration (Project No. 451-03-01038/2015-09118/18) IAEA, Vienna contract [17202]
SASPRO - Mobility Programme of Slovak Academy of Sciences: Supportive Fund for Excellent Scientists Physics of Ordered Nanostructures and New Materials in Photonics
Size-, shape- and structure- dependent properties of nanoparticles and nanocomposites Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča)

Author's Bibliography

Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid

Mravik, Željko; Bajuk-Bogdanović, Danica V.; Mraković, Ana Đ.; Vukosavljević, Ljubiša; Trajić, Ivan; Kovač, Janez; Peruško, Davor; Gavrilov, Nemanja; Jovanović, Zoran M.


AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Mraković, Ana Đ.
AU  - Vukosavljević, Ljubiša
AU  - Trajić, Ivan
AU  - Kovač, Janez
AU  - Peruško, Davor
AU  - Gavrilov, Nemanja
AU  - Jovanović, Zoran M.
PY  - 2021
UR  -
AB  - In recent years polyoxometalates (POMs) have attracted significant research interest due to versatile properties. These properties are determined by the size, structure and elemental composition of POMs and hence play an important role in their application. In the present study, the ion beam irradiation (10 keV C+ ions, 5 × 1014–2.5 × 1015 ions/cm2) has been utilized for modification of physicochemical properties of 120 nm-thick layer of 12-tungstophosphoric acid (WPA). Scanning electron microscopy analysis of irradiated films showed change of morphology i.e. an increase of WPA grain size with irradiation and coalescence of grains at the highest fluence. This was accompanied by structural changes. Attenuated total reflectance Fourier transform infrared analysis revealed that vibration bands of Keggin anion became less pronounced as fluence increased, while Raman spectra appeared as strongly modified. The effect of irradiation with 1.25 × 1015 ions/cm2 on the structure of WPA was similar to the effect of thermal treatment at 600 °C. Irradiation of WPA led to decrease of the band gap (from 4.07 to 3.92 eV), which was correlated to transformation Keggin anions into a network of WO6 octahedra and PO4 tetrahedra. This is in line with increased number of W=Od bonds observed by UV–Visible diffuse reflectance spectroscopy. Beside transformation to bronzes a reduction of WPA was observed by X-ray Photoelectron Spectroscopy (shift to lower binding energy) and Raman methods, whereas the Raman spectra of irradiated samples were similar to heteropoly blue. The electrochemical properties of irradiated WPA were also assessed. Cyclic voltammetry measurements showed that at up to 1.25 × 1015 ions/cm2 lithiation capacity of WPA increases and activity for hydrogen evolution reaction (HER) improves. The highest fluence caused interconnection of WO6 octahedra, closing of lithiation pathways and decrease in the number of active sites for HER. Our results provide a novel insight into the effects of ion beam irradiation on WPA and demonstrate high potential for tuning of physicochemical properties of POMs that are relevant in wide range of applications. © 2021 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid
VL  - 183
SP  - 109422
DO  - 10.1016/j.radphyschem.2021.109422
ER  -