Binding of methane to activated mineral surfaces - a methane sink on Mars?

Per Nørnberg*, Svend J. Knak Jensen, Jørgen Skibsted, Hans Jørgen Jakobsen, Inge L. ten Kate, H.P. Gunnlaugsson, Jonathan P. Merrison, Kai Finster, Ebbe Norskov Bak, J.J. Iversen, Jens Christian Kondrup

*Corresponding author af dette arbejde

Publikation: KonferencebidragPaperForskning

Abstract

Tumbling experiments that simulate the wind erosion of quartz grains in an atmosphere of 13 C-enriched methane are reported. The eroded grains are analyzed by 13C and 29 Si solid-state NMR techniques after several months of tumbling. The analysis shows that methane has reacted with the eroded surface to form covalent Si-CH3 bonds, which stay intact for temperatures up to at least 250oC. These findings offer a model for a methane sink that might explain the fast disappearance of methane on Mars.
OriginalsprogEngelsk
Publikationsdatookt. 2015
StatusUdgivet - okt. 2015
BegivenhedThe European Planetary Science Congress 2015 - Room Jupiter, Nantes, Frankrig
Varighed: 27 sep. 20152 okt. 2015
Konferencens nummer: 247

Andet

AndetThe European Planetary Science Congress 2015
Nummer247
Lokation Room Jupiter
Land/OmrådeFrankrig
ByNantes
Periode27/09/201502/10/2015

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