Gold and silver catalysts for liquid phase n-octanol oxidation: Effect of promoters

Yulia Kotolevich, Ekaterina Kolobova, Alexey Pestryakov, Jesús Efrén Cabrera Ortega, Nina Bogdanchikova, Vicente Cortés Corberán, Evgeniy Khramov, Yan Zubavichus, Rodolfo Zanella, Ekaterina Pakrieva

Результат исследований: Материалы для журналаСтатья

1 цитирование (Scopus)

Выдержка

Background: 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.

Язык оригиналаАнглийский
Страницы (с-по)323-331
Число страниц9
ЖурналCurrent Organic Synthesis
Том14
Номер выпуска3
DOI
СостояниеОпубликовано - 1 мая 2017

Отпечаток

1-Octanol
Silver
Gold
Oxidation
Catalysts
Spectrum Analysis
Liquids
Metals
Catalyst supports
Photoelectron Spectroscopy
Atomic emission spectroscopy
Platinum
Bimetals
Transmission Electron Microscopy
X-Ray Diffraction
Electronic states
Alcohols
Reaction rates
Transition metals
Temperature

ASJC Scopus subject areas

  • Biochemistry
  • Organic Chemistry

Цитировать

Gold and silver catalysts for liquid phase n-octanol oxidation : Effect of promoters. / Kotolevich, Yulia; Kolobova, Ekaterina; Pestryakov, Alexey; Cabrera Ortega, Jesús Efrén; Bogdanchikova, Nina; Corberán, Vicente Cortés; Khramov, Evgeniy; Zubavichus, Yan; Zanella, Rodolfo; Pakrieva, Ekaterina.

В: Current Organic Synthesis, Том 14, № 3, 01.05.2017, стр. 323-331.

Результат исследований: Материалы для журналаСтатья

Kotolevich, Y, Kolobova, E, Pestryakov, A, Cabrera Ortega, JE, Bogdanchikova, N, Corberán, VC, Khramov, E, Zubavichus, Y, Zanella, R & Pakrieva, E 2017, 'Gold and silver catalysts for liquid phase n-octanol oxidation: Effect of promoters', Current Organic Synthesis, том. 14, № 3, стр. 323-331. https://doi.org/10.2174/1570179413666161031113854
Kotolevich, Yulia ; Kolobova, Ekaterina ; Pestryakov, Alexey ; Cabrera Ortega, Jesús Efrén ; Bogdanchikova, Nina ; Corberán, Vicente Cortés ; Khramov, Evgeniy ; Zubavichus, Yan ; Zanella, Rodolfo ; Pakrieva, Ekaterina. / Gold and silver catalysts for liquid phase n-octanol oxidation : Effect of promoters. В: Current Organic Synthesis. 2017 ; Том 14, № 3. стр. 323-331.
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T2 - Effect of promoters

AU - Kotolevich, Yulia

AU - Kolobova, Ekaterina

AU - Pestryakov, Alexey

AU - Cabrera Ortega, Jesús Efrén

AU - Bogdanchikova, Nina

AU - Corberán, Vicente Cortés

AU - Khramov, Evgeniy

AU - Zubavichus, Yan

AU - Zanella, Rodolfo

AU - Pakrieva, Ekaterina

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