Keywords
bimetallic catalysts
concentration hysteresis
in situ XPS
mass spectrometry
methane
oxidation
palladium
platinum
Abstract
A combination of in situ XPS and mass spectrometry was used to investigate concentration hysteresis in the low- temperature oxidation of methane over a bimetallic Pt–Pd catalyst. It was shown that a decrease in the oxygen concentration leads to a sharp increase in the catalytic activity of the sample under study. The transition of the catalyst to a high/low activity state occurs due to the partial reduction/oxidation of the active component, with both platinum and palladium participating in the methane oxidation reaction.
References
1.
Pakharukov I.Y., Bekk I.E., Matrosova M.M., Bukhtiyarov V.I., Parmon V.N.
Doklady Physical Chemistry,
2011
2.
Pakharukov I.Y., Stakheev A.Y., Beck I.E., Zubavichus Y.V., Murzin V.Y., Parmon V.N., Bukhtiyarov V.I.
ACS Catalysis,
2015
3.
10.1016/j.mencom.2021.09.014_b0015
Zhdanov
J. Chem. Phys.,
2007
4.
Bugosh G.S., Easterling V.G., Rusakova I.A., Harold M.P.
Applied Catalysis B: Environmental,
2015
5.
Pakharukov I.Y., Prosvirin I.P., Chetyrin I.A., Bukhtiyarov V.I., Parmon V.N.
Catalysis Today,
2016
6.
10.1016/j.mencom.2021.09.014_b0030
Chetyrin
Chem. Sustainable Dev.,
2017
7.
Chetyrin I.A., Bukhtiyarov A.V., Prosvirin I.P., Khudorozhkov A.K., Bukhtiyarov V.I.
Topics in Catalysis,
2020
8.
Khudorozhkov A.K., Chetyrin I.A., Bukhtiyarov A.V., Prosvirin I.P., Bukhtiyarov V.I.
Topics in Catalysis,
2017
9.
Zemlyanov D., Aszalos-Kiss B., Kleimenov E., Teschner D., Zafeiratos S., Hävecker M., Knop-Gericke A., Schlögl R., Gabasch H., Unterberger W., Hayek K., Klötzer B.
Surface Science,
2006
10.
Croy J.R., Mostafa S., Hickman L., Heinrich H., Cuenya B.R.
Applied Catalysis A: General,
2008
11.
Oh S., Back S., Doh W.H., Moon S.Y., Kim J., Jung Y., Park J.Y.
RSC Advances,
2017
12.
Fan X., Wang F., Zhu T., He H.
Journal of Environmental Sciences,
2012
13.
Steinrück H., Pesty F., Zhang L., Madey T.E.
Physical Review B,
1995
14.
Otto K., Haack L.P., deVries J.E.
Applied Catalysis B: Environmental,
1992
15.
10.1016/j.mencom.2021.09.014_b0075
Barr
J. Phys. Chem.,
1801
16.
Monteiro R.S., Zemlyanov D., Storey J.M., Ribeiro F.H.
Journal of Catalysis,
2001
17.
Characterization and catalytic performances of La doped Pd/CeO2 catalysts for methanol decomposition
SUN K.
Applied Catalysis A: General,
2004
18.
Bancroft G.M., Adams I., Coatsworth L.L., Bennewitz C.D., Brown J.D., Westwood W.D.
Analytical Chemistry,
1975
19.
Anumol E.A., Halder A., Nethravathi C., Viswanath B., Ravishankar N.
Journal of Materials Chemistry A,
2011
20.
Yashnik S.A., Chesalov Y.A., Ishchenko A.V., Kaichev V.V., Ismagilov Z.R.
Applied Catalysis B: Environmental,
2017
21.
Large A., Seymour J., Quevedo Garzon W., Roy K., Venturini F., Grinter D.C., Artiglia L., Brooke E., de Gutierrez M.B., Raj A., Lovelock K.R., Bennett R.A., Eralp-Erden T., Held G.
Journal Physics D: Applied Physics,
2021
22.
Price R., Eralp-Erden T., Crumlin E., Rani S., Garcia S., Smith R., Deacon L., Euaruksakul C., Held G.
Topics in Catalysis,
2016
23.
Arrigo R., Schuster M.E., Xie Z., Yi Y., Wowsnick G., Sun L.L., Hermann K.E., Friedrich M., Kast P., Hävecker M., Knop-Gericke A., Schlögl R.
ACS Catalysis,
2015
24.
Gabasch H., Hayek K., Klötzer B., Unterberger W., Kleimenov E., Teschner D., Zafeiratos S., Hävecker M., Knop-Gericke A., Schlögl R., Aszalos-Kiss B., Zemlyanov D.
Journal of Physical Chemistry C,
2007