Nanocatalysis by the tip of a scanning tunneling micrscope operating inside a reactor cell
Journal Article
·
· Science (Washington, D.C.); (United States)
- Lawrence Berkeley Lab., CA (United States)
The platinum-rhodium tip of a scanning tunneling microscope that operates inside of an atmospheric-pressure chemical reactor cell has been used to locally rehydrogenate carbonaceous fragments deposited on the (111) surface of platinum. The carbon fragments were produced by partial dehydrogenation of propylene. The reactant gas environment inside the cell consisted of pure H[sub 2] or a 1:9 mixture of CH[sub 3]CHCH[sub 2] and H[sub 2] at 300 kelvin. The platinum-rhodium tip acted as a catalyst after activation by short voltage pulses. In this active state, the clusters in the area scanned by the tip were reacted away with very high spatial resolution.
- OSTI ID:
- 6799009
- Journal Information:
- Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 265:5177; ISSN SCIEAS; ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- English
Similar Records
Formation and morphology of hydrocarbon clusters on Pt(111) produced by the thermal decomposition (coking) of propylene under high pressures of H{sub 2} and CO observed in situ by scanning tunneling microscopy
Bridging the pressure gap: In situ atomic-level investigations of model platinum catalyst surfaces under reaction conditions by scanning tunneling microscopy
The hydrogenation and dehydrogenation of C2-C4 hydrocarbons on Pt(111) monitored in situ over 13 orders of magnitude in pressure with infrared-visible sum frequency generation
Journal Article
·
Thu Oct 31 23:00:00 EST 1996
· Journal of Catalysis
·
OSTI ID:486387
Bridging the pressure gap: In situ atomic-level investigations of model platinum catalyst surfaces under reaction conditions by scanning tunneling microscopy
Thesis/Dissertation
·
Sun May 01 00:00:00 EDT 1994
·
OSTI ID:10192508
The hydrogenation and dehydrogenation of C2-C4 hydrocarbons on Pt(111) monitored in situ over 13 orders of magnitude in pressure with infrared-visible sum frequency generation
Thesis/Dissertation
·
Wed May 01 00:00:00 EDT 1996
·
OSTI ID:374154