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100 | 1 | _ | |a Djinović, Petar |0 P:(DE-H253)PIP1085891 |b 0 |
245 | _ | _ | |a Synergistic effect of CuO nanocrystals and Cu-oxo-Fe clusters on silica support in promotion of total catalytic oxidation of toluene as a model volatile organic air pollutant |
260 | _ | _ | |a Amsterdam |c 2020 |b Elsevier |
336 | 7 | _ | |a article |2 DRIVER |
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520 | _ | _ | |a Monometallic (CuO and FeO$_x$) and bimetallic (CuFeO$_x$) entities on different supports are promising transition-metal low-cost catalysts for catalytic oxidation of volatile organic compounds (VOC) from industrial air alternatively to noble-metal catalysts which are currently in use. In this work we report for the first time that the promotion of catalytic oxidation of toluene as a model VOC is due to the cooperative redox effect between CuO nanocrystals and finely dispersed Cu-oxo-Fe clusters on mesoporous silica with defined Fe/Cu molar ratio. This increases the number and reactivity of adsorbed electrophilic (O$^−$ and O$_2^−$) as well as nucleophilic lattice oxygen (O$^{2-}$) species at the CuO crystal and and Cu-oxo-Fe cluster interface, thus providing up to twofold enhancement in catalytic activity for total oxidation of toluene. Catalysts were prepared via direct synthesis of Fe-functionalized disordered mesoporous silica containing only isolated iron sites followed by copper addition via impregnation. |
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700 | 1 | _ | |a Ristić, Alenka |0 P:(DE-HGF)0 |b 1 |
700 | 1 | _ | |a Žumbar, Tadej |0 P:(DE-HGF)0 |b 2 |
700 | 1 | _ | |a Dasireddy, Venkata D. B. C. |0 0000-0002-0665-7850 |b 3 |
700 | 1 | _ | |a Rangus, Mojca |0 P:(DE-H253)PIP1008433 |b 4 |
700 | 1 | _ | |a Dražić, Goran |0 P:(DE-HGF)0 |b 5 |
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700 | 1 | _ | |a Novak Tušar, Nataša |0 P:(DE-H253)PIP1010682 |b 9 |e Corresponding author |
773 | _ | _ | |a 10.1016/j.apcatb.2020.118749 |g Vol. 268, p. 118749 - |0 PERI:(DE-600)2017331-3 |p 118749 |t Applied catalysis / B |v 268 |y 2020 |x 0926-3373 |
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