Mechanism of the Reduction of Cu-Zn Mixed Oxide Model Methanol Synthesis Catalyst - Доклады на конференциях | Sciact - CRIS-система Института катализа

Mechanism of the Reduction of Cu-Zn Mixed Oxide Model Methanol Synthesis Catalyst Доклады на конференциях

Язык

Английский

Тип доклада

Устный

Конференция

9th Natural Gas Conversion Symposium
30 мая - 3 июн. 2010 , Lyon

Авторы

Khassin A.A. ¹ , Jobic H. ¹ , Dokuchits E.V. ¹ , Filonenko G.A. ¹ , Khasin A.V. ¹ , Davydova L.P. ¹ , Shtertser N.V. ¹ , Plyasova L.M. ¹ , Yurieva T.M. ¹

Организации

1	Институт катализа им. Г.К. Борескова СО РАН

Inelastic neutron scattering, in-situ FTIR/MS, and TG-DSC/MS data give prove that (Cu, Zn)O mixed oxide when treated in H2 at 200°C accumulates 6H/Cu as hydroxyl groups and formates. The reduction of copper in (Cu, Zn)O mixed oxide (model methanol synthesis catalyst) occurs via reversible redox interaction with H2 and absorption of protons as OH– -groups with ν = 3250 cm-1 and δ = 1430 cm-1. The weight loss during the reduction is due to decomposition of carbonate groups admixtures to CO2. Formates are plausible intermediates of this process, which is catalysed by molecular hydrogen.

Khassin A.A. , Jobic H. , Dokuchits E.V. , Filonenko G.A. , Khasin A.V. , Davydova L.P. , Shtertser N.V. , Plyasova L.M. , Yurieva T.M.
Mechanism of the Reduction of Cu-Zn Mixed Oxide Model Methanol Synthesis Catalyst
9th Natural Gas Conversion Symposium 30 May - 3 Jun 2010