| 000 | 03360nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 658267 | ||
| 005 | 20231030041545.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\25856 | ||
| 090 | _a658267 | ||
| 100 | _a20180918a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aA study on structural features of bimetallic Pd-M/C (M: Zn, Ga, Ag) catalysts for liquid-phase selective hydrogenation of acetylene _fD. V. Glyzdova [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 76 tit.] | ||
| 330 | _aThe present work is devoted to the study of doping effects of zinc, gallium and silver on the structure of active sites and catalytic properties of carbon-supported 0.5?wt% Pd catalysts in the liquid-phase selective hydrogenation of acetylene to ethylene. Carbonaceous graphite-like material Sibunit was used as a support. The reaction was performed in a medium of N-methyl-2-pyrrolidone at 55?°C. It was shown that the bimetallic Pd-Zn/C, Pd-Ga/C and Pd-Ag/C catalysts exhibit better activity and selectivity towards target product if compare with the monometallic Pd/C catalyst. The ethylene yield increases in a row as follows: Pd/C (19%) < Pd-Ag/C (34%) < Pd-Ga/C (42%) < Pd-Zn/C (53%). Using X-ray absorption spectroscopy and transmission electron microscopy it was found that an improvement of the selectivity is stipulated by the formation of bimetallic PdZn, PdxGay and PdAg nanophases. In the case of Pd-Zn/C and Pd-Ag/C systems, an increased distance between neighboring Pd atoms (2.82–2.89?A) in relation with monometallic Pd/C, where this distance is 2.72?A, was observed. The higher activity of modified bimetallic systems is connected with increased number of active sites due to enhanced dispersity of supported palladium doped with second metal. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tApplied Catalysis A: General | ||
| 463 |
_tVol. 563 _v[P. 18-27] _d2018 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aжидкофазное гидрирование | |
| 610 | 1 | _aацетилен | |
| 610 | 1 | _aпалладиевые катализаторы | |
| 610 | 1 | _aбиметаллические катализаторы | |
| 701 | 1 |
_aGlyzdova _bD. V. _gDarjya |
|
| 701 | 1 |
_aVedyagin _bA. A. _cChemist _cChief Expert of Tomsk Polytechnic University, Candidate of chemical sciences _f1975- _gAleksey Anatolievich _2stltpush _3(RuTPU)RU\TPU\pers\36694 |
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| 701 | 1 |
_aTsapina _bA. M. _gAnna |
|
| 701 | 1 |
_aKaichev _bV. V. _gVasily |
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| 701 | 1 |
_aTrigub _bA. L. _gAleksandr |
|
| 701 | 1 |
_aTrenikhin _bM. V. _gMikhail Viktorovich |
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| 701 | 1 |
_aShlyapin _bD. A. _gDmitry |
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| 701 | 1 |
_aTsyrulnikov _bP. G. _gPavel |
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| 701 | 1 |
_aLavrenov _bA. V. _gAleksandr |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИсследовательская школа химических и биомедицинских технологий (ИШХБМТ) _c(2017- ) _h8120 _2stltpush _3(RuTPU)RU\TPU\col\23537 |
| 801 | 2 |
_aRU _b63413507 _c20180918 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1016/j.apcata.2018.06.029 | |
| 942 | _cCF | ||