Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
38
pubmed:dateCreated
2009-5-22
pubmed:abstractText
Scanning tunnelling microscopy was used for studying surface structural evolution in the course of the hydrogen abstraction of H2O by O adatoms on oxidized Ag(110) surfaces where quasi-1D AgO chains form ordered structures. The reaction initially takes place slowly on Ag(110)-(5 x 1)O at the end of the AgO chain, whereas the reaction accelerates explosively upon the appearance of a reaction front that propagates along the direction perpendicular to the chain. The surface morphology of the region swept over by the reaction front completely changes from a (5 x 1)-O to a (2 x 3) structure with many rectangular islands possibly due to the formation of H20(OH)2. The induction time and explosive acceleration with the propagating reaction front imply that the reaction proceeds autocatalytically. The water clusters hydrating OH adsorbates play likely a central role in accelerating the reaction by supplying H2O to the O adatoms in the AgO chains at the reaction front.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Oct
pubmed:issn
1463-9076
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5274-8
pubmed:year
2007
pubmed:articleTitle
Explosive evolution of hydrogen abstraction of water on oxidized Ag(110) surfaces studied by scanning tunnelling microscopy.
pubmed:affiliation
Department of Photoscience, The Graduate University for Advanced Studies, Hayama, Kanagawa 240-0193, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't