6533b7d9fe1ef96bd126d7bd

RESEARCH PRODUCT

Scanning Tunneling Spectroscope Use in Electrocatalysis Testing

Turid Knutsen

subject

metallic glasses of Ni alloysAnalytical chemistryElectrochemistryElectrocatalystlcsh:TechnologyArticleCatalysislaw.inventionlawscanning tunneling microscopeGeneral Materials Sciencelcsh:MicroscopyQuantum tunnellinglcsh:QC120-168.85lcsh:QH201-278.5Chemistrylcsh:TVDP::Technology: 500::Chemical engineering: 560Oxygen evolutionElectrochemical scanning tunneling microscopeChemical engineeringoxygen evolution reactionlcsh:TA1-2040Electrodelcsh:Descriptive and experimental mechanicslcsh:Electrical engineering. Electronics. Nuclear engineeringScanning tunneling microscopelcsh:Engineering (General). Civil engineering (General)scanning tunneling microscope; oxygen evolution reaction; metallic glasses of Ni alloyslcsh:TK1-9971

description

Published version of an article from the journal: Materials (1996-1944). Also available from publisher: http://dx.doi.org/10.3390/ma3063675 The relationship between the electrocatalytic properties of an electrode and its ability to transfer electrons between the electrode and a metallic tip in a scanning tunneling microscope (STM) is investigated. The alkaline oxygen evolution reaction (OER) was used as a test reaction with four different metallic glasses, Ni78Si8B14, Ni70Mo20Si5B5, Ni58Co20Si10B12, and Ni25Co50Si15B10, as electrodes. The electrocatalytic properties of the electrodes were determined. The electrode surfaces were then investigated with an STM. A clear relationship between the catalytic activity of an electrode toward the OER and its tunneling characteristics was found. The use of a scanning tunneling spectroscope (STS) in electrocatalytic testing may increase the efficiency of the optimization of electrochemical processes.

yearjournalcountryeditionlanguage
2010-06-01
http://hdl.handle.net/11250/136743