CO Oxidation over Pd/ZrO2 Catalysts: Role of Support?s Donor Sites; Molecules; Vol. 21, iss. 10
| Parent link: | Molecules Vol. 21, iss. 10.— 2016.— [1289, 15 p.] |
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| Körperschaften: | , |
| Weitere Verfasser: | , , , , |
| Zusammenfassung: | Title screen A series of supported Pd/ZrO2 catalysts with Pd loading from 0.2 to 2 wt % was synthesized. The ZrO2 material prepared by a similar technique was used as a reference sample. The samples have been characterized by means of transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), testing reaction of ethane hydrogenolysis (HGE), N2 adsorption, and electron paramagnetic resonance (EPR) spectroscopy. 1,3,5-trinitrobenzene was used as a probe molecule for the EPR spin probe method. The catalytic performance of samples was tested in the model reaction of CO oxidation. It was shown that the concentration of donor sites of support measured by EPR spin probe correlates with catalytic behavior during light-off tests. Low concentration of donor sites on a support’s surface was found to be caused by the presence of the specific surface defects that are related to existence of coordinately unsaturated structures. |
| Sprache: | Englisch |
| Veröffentlicht: |
2016
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| Schlagworte: | |
| Online-Zugang: | http://dx.doi.org/10.3390/molecules21101289 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650953 |
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| 200 | 1 | |a CO Oxidation over Pd/ZrO2 Catalysts: Role of Support?s Donor Sites |f A. A. Vedyagin [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 27 tit.] | ||
| 330 | |a A series of supported Pd/ZrO2 catalysts with Pd loading from 0.2 to 2 wt % was synthesized. The ZrO2 material prepared by a similar technique was used as a reference sample. The samples have been characterized by means of transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), testing reaction of ethane hydrogenolysis (HGE), N2 adsorption, and electron paramagnetic resonance (EPR) spectroscopy. 1,3,5-trinitrobenzene was used as a probe molecule for the EPR spin probe method. The catalytic performance of samples was tested in the model reaction of CO oxidation. It was shown that the concentration of donor sites of support measured by EPR spin probe correlates with catalytic behavior during light-off tests. Low concentration of donor sites on a support’s surface was found to be caused by the presence of the specific surface defects that are related to existence of coordinately unsaturated structures. | ||
| 461 | |t Molecules | ||
| 463 | |t Vol. 21, iss. 10 |v [1289, 15 p.] |d 2016 | ||
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a гетерогенный анализ | |
| 610 | 1 | |a катализаторы | |
| 610 | 1 | |a цирконий | |
| 610 | 1 | |a активные центры | |
| 610 | 1 | |a окисление | |
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| 701 | 1 | |a Vedyagin |b A. A. |c Chemist |c Chief Expert of Tomsk Polytechnic University, Candidate of chemical sciences |f 1975- |g Aleksey Anatolievich |3 (RuTPU)RU\TPU\pers\36694 |9 19733 | |
| 701 | 1 | |a Volodin |b A. M. |g Alexander M. | |
| 701 | 1 | |a Kenzhin |b R. M. |g Roman M. | |
| 701 | 1 | |a Chesnokov |b V. V. |g Vladimir V. | |
| 701 | 1 | |a Mishakov |b I. V. |c chemist |c Associate Professor of Tomsk Polytechnic University, candidate of chemical sciences |f 1977- |g Iljya Vladimirovich |3 (RuTPU)RU\TPU\pers\36375 |9 19446 | |
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