Bilateral project Portugal-Serbia [451-0301765/2014-09/03]

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Bilateral project Portugal-Serbia [451-0301765/2014-09/03]

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Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface

Batalović, Katarina; Radaković, Jana; Bundaleski, Nenad; Rakočević, Zlatko Lj.; Pašti, Igor A.; Skorodumova, Natalia V.; Rangel, Carmen Mireya

(2020)

TY  - JOUR
AU  - Batalović, Katarina
AU  - Radaković, Jana
AU  - Bundaleski, Nenad
AU  - Rakočević, Zlatko Lj.
AU  - Pašti, Igor A.
AU  - Skorodumova, Natalia V.
AU  - Rangel, Carmen Mireya
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9620
AB  - In pursuit of the ideal photocatalyst, cheap and stable semiconductor TiO2 is considered to be a good choice if one is able to reduce its band gap and decrease the recombination rate of charge carriers. The approach that offers such improvements for energy conversion applications is the modification of TiO2 with nitrogen and noble metals. However, the origin of these improvements and possibilities for further design of single-atom catalysts are not always straightforward. To shed light on the atomic-scale picture, we modeled the nitrogen-doped (001) anatase TiO2 surface as a support for palladium and platinum single-atom deposition. The thermodynamics of various synthesis routes for Pd/Pt deposition and nitrogen doping is considered based on density functional theory (DFT)-calculated energies, highlighting the effect of nitrogen doping on metal dimer formation and metal-support interaction. XPS analysis of the valence band of the modified TiO2 nanocrystals, and the calculated charge transfer and electronic structure of single-atom catalysts supported on the (001) anatase TiO2 surface provide an insight into modifications occurring in the valence zone of TiO2 due to nitrogen doping and Pd/Pt deposition at the surface. DFT results also show that substitutional nitrogen doping significantly increases metal-support interaction, while interstitial nitrogen doping promotes only Pt-support interaction. © the Owner Societies.
T2  - Physical Chemistry Chemical Physics
T1  - Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface
VL  - 22
IS  - 33
SP  - 18536
EP  - 18547
DO  - 10.1039/d0cp03186k
ER  - 
@article{
author = "Batalović, Katarina and Radaković, Jana and Bundaleski, Nenad and Rakočević, Zlatko Lj. and Pašti, Igor A. and Skorodumova, Natalia V. and Rangel, Carmen Mireya",
year = "2020",
abstract = "In pursuit of the ideal photocatalyst, cheap and stable semiconductor TiO2 is considered to be a good choice if one is able to reduce its band gap and decrease the recombination rate of charge carriers. The approach that offers such improvements for energy conversion applications is the modification of TiO2 with nitrogen and noble metals. However, the origin of these improvements and possibilities for further design of single-atom catalysts are not always straightforward. To shed light on the atomic-scale picture, we modeled the nitrogen-doped (001) anatase TiO2 surface as a support for palladium and platinum single-atom deposition. The thermodynamics of various synthesis routes for Pd/Pt deposition and nitrogen doping is considered based on density functional theory (DFT)-calculated energies, highlighting the effect of nitrogen doping on metal dimer formation and metal-support interaction. XPS analysis of the valence band of the modified TiO2 nanocrystals, and the calculated charge transfer and electronic structure of single-atom catalysts supported on the (001) anatase TiO2 surface provide an insight into modifications occurring in the valence zone of TiO2 due to nitrogen doping and Pd/Pt deposition at the surface. DFT results also show that substitutional nitrogen doping significantly increases metal-support interaction, while interstitial nitrogen doping promotes only Pt-support interaction. © the Owner Societies.",
journal = "Physical Chemistry Chemical Physics",
title = "Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface",
volume = "22",
number = "33",
pages = "18536-18547",
doi = "10.1039/d0cp03186k"
}
Batalović, K., Radaković, J., Bundaleski, N., Rakočević, Z. Lj., Pašti, I. A., Skorodumova, N. V.,& Rangel, C. M.. (2020). Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface. in Physical Chemistry Chemical Physics, 22(33), 18536-18547.
https://doi.org/10.1039/d0cp03186k
Batalović K, Radaković J, Bundaleski N, Rakočević ZL, Pašti IA, Skorodumova NV, Rangel CM. Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface. in Physical Chemistry Chemical Physics. 2020;22(33):18536-18547.
doi:10.1039/d0cp03186k .
Batalović, Katarina, Radaković, Jana, Bundaleski, Nenad, Rakočević, Zlatko Lj., Pašti, Igor A., Skorodumova, Natalia V., Rangel, Carmen Mireya, "Origin of photocatalytic activity enhancement in Pd/Pt-deposited anatase N-TiO2-experimental insights and DFT study of the (001) surface" in Physical Chemistry Chemical Physics, 22, no. 33 (2020):18536-18547,
https://doi.org/10.1039/d0cp03186k . .
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