TY  - JOUR
AU  - Krstajic, Mila N.
AU  - Obradović, Maja D.
AU  - Babić, Biljana M.
AU  - Radmilović, Velimir
AU  - Lacnjevac, Uros C.
AU  - Krstajic, Nedeljko V.
AU  - Gojković, Snežana Lj.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5829
AB  - Ru-doped SnO2 powder, (RuxSn1-x)O-2, with a Sn:Ru atomic ratio of 9:1 was synthesized and used as a support for Pt nanoparticles (30 mass % loading). The (RuxSn1-x)O-2 support and the Pt/(RuxSn1-x)O-2 catalyst were characterized by X-ray diffraction measurements, energy dispersive X-ray spectroscopy and transmission electron microscopy (TEM). The (RuxSn1-x)O-2 was found to be a two-phase material consisting of probably a solid solution of RuO2 in SnO2 and pure RuO2. The average Pt particle size determined by TEM was 5.3 nm. Cyclic voltammetry of Pt/(RuxSn1-x)O-2 indicated good conductivity of the support and displayed the usual features of Pt. The results of the electrochemical oxidation of COad, and methanol on Pt/(RuxSn1-x)O-2 were compared with those on commercial Pt/C and PtRu/C catalysts. Oxidation of COads on Pt/(RuxSn1-x)O-2 starts at lower positive potentials than on PtRu/C and Pt/C. Potentiodynamic polarization curves and chronoamperometric curves of methanol oxidation indicated higher initial activity of the Pt/(RuxSn1-x)O-2 catalyst compared to PtRu/C, but also a greater loss in current density over time. A potentiodynamic stability test of the catalysts revealed that deactivation of Pt/(RuxSn1-x)O-2 and Pt/C was primarily caused by poisoning of the Pt surface by residues of methanol oxidation, which mostly occurred during the first potential cycle. In the case of PtRu/C, the poisoning of the surface was minor and deactivation was caused by surface area loss of the PtRu.
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical oxidation of methanol on Pt/(RuxSn1-x)O-2 nanocatalyst
VL  - 78
IS  - 11
SP  - 1703
EP  - 1716
DO  - 10.2298/JSC130718091K
ER  - 

@article{
author = "Krstajic, Mila N. and Obradović, Maja D. and Babić, Biljana M. and Radmilović, Velimir and Lacnjevac, Uros C. and Krstajic, Nedeljko V. and Gojković, Snežana Lj.",
year = "2013",
abstract = "Ru-doped SnO2 powder, (RuxSn1-x)O-2, with a Sn:Ru atomic ratio of 9:1 was synthesized and used as a support for Pt nanoparticles (30 mass % loading). The (RuxSn1-x)O-2 support and the Pt/(RuxSn1-x)O-2 catalyst were characterized by X-ray diffraction measurements, energy dispersive X-ray spectroscopy and transmission electron microscopy (TEM). The (RuxSn1-x)O-2 was found to be a two-phase material consisting of probably a solid solution of RuO2 in SnO2 and pure RuO2. The average Pt particle size determined by TEM was 5.3 nm. Cyclic voltammetry of Pt/(RuxSn1-x)O-2 indicated good conductivity of the support and displayed the usual features of Pt. The results of the electrochemical oxidation of COad, and methanol on Pt/(RuxSn1-x)O-2 were compared with those on commercial Pt/C and PtRu/C catalysts. Oxidation of COads on Pt/(RuxSn1-x)O-2 starts at lower positive potentials than on PtRu/C and Pt/C. Potentiodynamic polarization curves and chronoamperometric curves of methanol oxidation indicated higher initial activity of the Pt/(RuxSn1-x)O-2 catalyst compared to PtRu/C, but also a greater loss in current density over time. A potentiodynamic stability test of the catalysts revealed that deactivation of Pt/(RuxSn1-x)O-2 and Pt/C was primarily caused by poisoning of the Pt surface by residues of methanol oxidation, which mostly occurred during the first potential cycle. In the case of PtRu/C, the poisoning of the surface was minor and deactivation was caused by surface area loss of the PtRu.",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical oxidation of methanol on Pt/(RuxSn1-x)O-2 nanocatalyst",
volume = "78",
number = "11",
pages = "1703-1716",
doi = "10.2298/JSC130718091K"
}

Krstajic, M. N., Obradović, M. D., Babić, B. M., Radmilović, V., Lacnjevac, U. C., Krstajic, N. V.,& Gojković, S. Lj.. (2013). Electrochemical oxidation of methanol on Pt/(RuxSn1-x)O-2 nanocatalyst. in Journal of the Serbian Chemical Society, 78(11), 1703-1716.
https://doi.org/10.2298/JSC130718091K

Krstajic MN, Obradović MD, Babić BM, Radmilović V, Lacnjevac UC, Krstajic NV, Gojković SL. Electrochemical oxidation of methanol on Pt/(RuxSn1-x)O-2 nanocatalyst. in Journal of the Serbian Chemical Society. 2013;78(11):1703-1716.
doi:10.2298/JSC130718091K .

Krstajic, Mila N., Obradović, Maja D., Babić, Biljana M., Radmilović, Velimir, Lacnjevac, Uros C., Krstajic, Nedeljko V., Gojković, Snežana Lj., "Electrochemical oxidation of methanol on Pt/(RuxSn1-x)O-2 nanocatalyst" in Journal of the Serbian Chemical Society, 78, no. 11 (2013):1703-1716,
https://doi.org/10.2298/JSC130718091K . .

TY  - JOUR
AU  - Đokić, Veljko R.
AU  - Marinković, Aleksandar D.
AU  - Mitrić, Miodrag
AU  - Uskoković, Petar S.
AU  - Petrovic, Rada D.
AU  - Radmilović, Velimir
AU  - Janaćković, Đorđe T.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5085
AB  - A method for the preparation of efficient TiO2/multi-wall carbon nanotubes nanocomposite photocatalysts by precipitation of anatase TiO2 nanoparticles onto differently oxidized carbon nanotubes is presented. The precursor compound titanium(IV) bromide was hydrolyzed producing pure anatase phase TiO2 nanoparticles decorated on the surface of the oxidized carbon nanotubes. The oxidative treatment of the carbon nanotubes influenced the type, quantity and distribution of oxygen-containing functional groups, which had a significant influence on the electron transfer properties, i.e., the photocatalytic activity of the synthesized nanocomposites. The results of C.I. Reactive Orange 16 photodegradation in the presence of all the synthesized nanocomposites showed their better photocatalytic activity in comparison to the commercial photocatalyst Degussa P-25. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Preparation of TiO2/carbon nanotubes photocatalysts: The influence of the method of oxidation of the carbon nanotubes on the photocatalytic activity of the nanocomposites
VL  - 38
IS  - 8
SP  - 6123
EP  - 6129
DO  - 10.1016/j.ceramint.2012.04.060
ER  - 

@article{
author = "Đokić, Veljko R. and Marinković, Aleksandar D. and Mitrić, Miodrag and Uskoković, Petar S. and Petrovic, Rada D. and Radmilović, Velimir and Janaćković, Đorđe T.",
year = "2012",
abstract = "A method for the preparation of efficient TiO2/multi-wall carbon nanotubes nanocomposite photocatalysts by precipitation of anatase TiO2 nanoparticles onto differently oxidized carbon nanotubes is presented. The precursor compound titanium(IV) bromide was hydrolyzed producing pure anatase phase TiO2 nanoparticles decorated on the surface of the oxidized carbon nanotubes. The oxidative treatment of the carbon nanotubes influenced the type, quantity and distribution of oxygen-containing functional groups, which had a significant influence on the electron transfer properties, i.e., the photocatalytic activity of the synthesized nanocomposites. The results of C.I. Reactive Orange 16 photodegradation in the presence of all the synthesized nanocomposites showed their better photocatalytic activity in comparison to the commercial photocatalyst Degussa P-25. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Preparation of TiO2/carbon nanotubes photocatalysts: The influence of the method of oxidation of the carbon nanotubes on the photocatalytic activity of the nanocomposites",
volume = "38",
number = "8",
pages = "6123-6129",
doi = "10.1016/j.ceramint.2012.04.060"
}

Đokić, V. R., Marinković, A. D., Mitrić, M., Uskoković, P. S., Petrovic, R. D., Radmilović, V.,& Janaćković, Đ. T.. (2012). Preparation of TiO2/carbon nanotubes photocatalysts: The influence of the method of oxidation of the carbon nanotubes on the photocatalytic activity of the nanocomposites. in Ceramics International, 38(8), 6123-6129.
https://doi.org/10.1016/j.ceramint.2012.04.060

Đokić VR, Marinković AD, Mitrić M, Uskoković PS, Petrovic RD, Radmilović V, Janaćković ĐT. Preparation of TiO2/carbon nanotubes photocatalysts: The influence of the method of oxidation of the carbon nanotubes on the photocatalytic activity of the nanocomposites. in Ceramics International. 2012;38(8):6123-6129.
doi:10.1016/j.ceramint.2012.04.060 .

Đokić, Veljko R., Marinković, Aleksandar D., Mitrić, Miodrag, Uskoković, Petar S., Petrovic, Rada D., Radmilović, Velimir, Janaćković, Đorđe T., "Preparation of TiO2/carbon nanotubes photocatalysts: The influence of the method of oxidation of the carbon nanotubes on the photocatalytic activity of the nanocomposites" in Ceramics International, 38, no. 8 (2012):6123-6129,
https://doi.org/10.1016/j.ceramint.2012.04.060 . .