In-situ XPS Study of Active Component of Pd/Al2O3 Catalysts in Total CH4 Oxidation - Conference attendances | Sciact - CRIS-system of Boreskov Institute of Catalysis

In-situ XPS Study of Active Component of Pd/Al2O3 Catalysts in Total CH4 Oxidation Conference attendances

Language

Английский

Participant type

Стендовый

Conference

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань

Authors

Prosvirin Igor Petrovich ^1,2 , Chetyrin Igor Anatolʹevich ^1,2,3 , Khudorozhkov Alexandr Konstantinovich ^1,3 , Bukhtiyarov Valerii Ivanovich ^1,2,3

Affiliations

1	Boreskov Institute of Catalysis SB RAS
2	Novosibirsk National Research University
3	Novosibirsk National Research University

Active component of 1%Pd/Al2IO3 catalysts in CH4 oxidation have been studied using in-situ XPS and mass-spectrometry. Samples with close particle size (4-5 nm) but different initial state of Pd (metal or oxidic) were chosen to reveal the state of active component under the reaction conditions. It was shown that mixed metal-oxide state of Pd characterized by Eb = 335.8 eV forms on the surface of samples under reaction conditions (O2 / CH4 = 4/1, P = 0.02 mbar, T = 430 oC) independently of the initial state of Pd in as prepared samples. Ratio between Pd0 and PdO therein depends on both temperature and O2 to CH4 ratio in the reaction mixture.

Prosvirin I.P. , Chetyrin I.A. , Khudorozhkov A.K. , Bukhtiyarov V.I.
In-situ XPS Study of Active Component of Pd/Al2O3 Catalysts in Total CH4 Oxidation
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015