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101 0 _aeng
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181 0 _ai
182 0 _ab
200 1 _aGold and Silver Catalysts for Liquid Phase n-Octanol Oxidation: Effect of Promoters
_fYu. I. Kotolevich [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aBackground: In comparison with these platinum group metal catalysts, supported nano gold catalysts have emerged as a new type of catalysts highly active at low temperature and selective for the aerobic oxidation of alcohols. But catalytic data and detailed characterizations of the Au-Ag bimetal catalytic system are not available up to date.Objective: This work is aimed to develop bimetallic AuAg-based heterogeneous catalysts for liquid phase selective oxidation of n-octanol. Modification of the titania support with transition metal additives were used as tools for transforming active species.Method: Catalytic tests in n-octanol liquid-phase oxidation at 80 °C. Catalyst characterization by Transmission electron microscopy, X-ray diffraction, plasma atomic emission spectroscopy, X-ray photoelectron spectroscopy, EXAFS and UV-visible spectroscopy.Results and Conclusion: Bimetallic AuAg catalysts supported on titania are moderately active for liquid phase selective oxidation of n-octanol. Formation of Au-Ag alloy was observed. Their activity may be increased by modification of the support with donor additives (La, Mg), while acceptor additives (Ce, Fe) decreased it. The addition of La, that inhibits the formation of Au-Ag alloy, provides the highest activity and the highest stability of reaction rate with run time in either as prepared and red-ox treated forms, which implies that it stabilizes the active centers in its optimal electronic state.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tCurrent Organic Synthesis
_d2004-
463 _tVol. 14, iss. 3
_v[P. 323 - 331]
_d2017
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aзолото
610 1 _aсеребро
610 1 _aкатализаторы
610 1 _aжидкофазное окисление
610 1 _aпромоторы
701 1 _aKotolevich
_bYu. I.
_gYuliya
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 _aPestryakov
_bA. N.
_cChemist
_cProfessor of Tomsk Polytechnic University, Doctor of Chemical Science
_f1963-
_gAleksey Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\30471
701 1 _aCabrera
_bO. J. E.
_gOrtega Jesus Efren
701 1 _aBogdanchikova
_bN. E.
_gNina Evgenjevna
701 1 _aCortes
_bC. V.
_gCorberan
701 1 _aKhramov
_bEvgeny
_gE. A.
701 1 _aZubavichus
_bYa. V.
_gYan Vitautasovich
701 1 _aZanella
_bRodolfo
_gR. A.
701 1 _aPakrieva
_bE. G.
_cChemical Engineer
_cEngineer of Tomsk Polytechnic University
_f1989-
_gEkaterina Germanovna
_2stltpush
_3(RuTPU)RU\TPU\pers\33273
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра физической и аналитической химии (ФАХ)
_h94
_2stltpush
_3(RuTPU)RU\TPU\col\18656
801 2 _aRU
_b63413507
_c20170525
_gRCR
856 4 _uhttps://doi.org/10.2174/1570179413666161031113854
942 _cCF