Ethanol dehydrogenation on copper catalysts with ytterbium stabilized tetragonal ZrO2 support


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

The physicochemical and catalytic properties of Cu-containing crystalline zirconia, obtained via sol–gel synthesis in the presence of Yb3+ ions and polyvinylpyrrolidone, are studied. DTG/DSC, TEM, XRD and BET methods are used to analyze the crystallization, texture, phase uniformity, surface and porosity of ZrO2 nanopowders. It is shown that increasing the copper content (1, 3, and 5 wt % from ZrO2) raises the dehydrogenation activity in the temperature range of 100–400°C and lowers the activation energy of acetaldehyde formation. It is found that the activity of all Cu/t-ZrO2 catalysts grows under the effects of the reaction medium, due to the migration and redispersion of copper.

Авторлар туралы

S. Chuklina

RUDN University

Хат алмасуға жауапты Автор.
Email: sofyaogan@gmail.com
Ресей, Moscow, 117198

A. Pylinina

RUDN University

Email: sofyaogan@gmail.com
Ресей, Moscow, 117198

L. Podzorova

Baikov Institute of Metallurgy and Materials Science

Email: sofyaogan@gmail.com
Ресей, Moscow, 119334

N. Mikhailina

Baikov Institute of Metallurgy and Materials Science

Email: sofyaogan@gmail.com
Ресей, Moscow, 119334

I. Mikhalenko

RUDN University

Email: sofyaogan@gmail.com
Ресей, Moscow, 117198

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