000 03600nlm1a2200517 4500
001 665407
005 20231030042002.0
035 _a(RuTPU)RU\TPU\network\36606
035 _aRU\TPU\network\35016
090 _a665407
100 _a20210923a2021 k y0engy50 ba
101 0 _aeng
102 _aCH
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aEffect of the Metal Deposition Order on Structural, Electronic and Catalytic Properties of TiO2-Supported Bimetallic Au-Ag Catalysts in 1-Octanol Selective Oxidation
_fYu. Kotolevich, E. G. Pakrieva, E. N. Kolobova [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 83 tit.]
330 _aAu and Ag were deposited on TiO2 modified with Ce, La, Fe or Mg in order to obtain bimetallic catalysts to be used for liquid-phase oxidation of 1-octanol. The effects of the deposition order of gold and silver, and the nature of the support modifying additives and redox pretreatments on the catalytic properties of the bimetallic Au-Ag catalysts were studied. Catalysts were characterized by low-temperature nitrogen adsorption–desorption, energy dispersive spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy and ultraviolet-visible diffuse reflectance spectroscopy. It was found that pretreatments with hydrogen and oxygen at 300 °C significantly decreased the activity of AuAg catalysts (silver was deposited first) and had little effect on the catalytic properties of AgAu samples (gold was deposited first). The density functional theory method demonstrated that the adsorption energy of 1-octanol increased for all positively charged AuxAgyq (x + y = 10, with a charge of q = 0 or +1) clusters compared with the neutral counterparts. Lanthanum oxide was a very effective promoter for both monometallic and bimetallic gold and silver catalysts in the studied process.
461 _tCatalysts
463 _tVol. 11, iss. 7
_v[799, 18 p.]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _agold
610 1 _asilver
610 1 _abimetallic catalysts
610 1 _a1-octanol oxidation
610 1 _aзолото
610 1 _aбиметаллические катализаторы
610 1 _aокисление
701 1 _aKotolevich
_bYu.
_gYulia
701 1 _aPakrieva
_bE. G.
_cChemical Engineer
_cEngineer of Tomsk Polytechnic University
_f1989-
_gEkaterina Germanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33273
701 1 _aKolobova
_bE. N.
_cChemical Engineer
_cdesign engineer of Tomsk Polytechnic University
_f1989-
_gEkaterina Nikolaevna
_2stltpush
_3(RuTPU)RU\TPU\pers\34488
701 1 _aFarias
_bM. H.
_gMario
701 1 _aBogdanchikova
_bN.
_gNina
701 1 _aCorberan
_bV. C.
_gCortes
701 1 _aPichugina
_bD. A.
_gDaria
701 1 _aNikitina
_bN. A.
_gNadezhda
701 1 _aCarabineiro
_bS. A. C.
_gSonia Alexandra Correia
701 1 _aPestryakov
_bA. N.
_cChemist
_cProfessor of Tomsk Polytechnic University, Doctor of Chemical Science
_f1963-
_gAleksey Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\30471
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий
_c(2017- )
_h8120
_2stltpush
_3(RuTPU)RU\TPU\col\23537
801 2 _aRU
_b63413507
_c20210923
_gRCR
856 4 _uhttps://doi.org/10.3390/catal11070799
942 _cCF