Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 139, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4818997
Keywords
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Funding
- Chemistry Department at Brookhaven National Laboratory [DE-AC02-98CH10086]
- (U.S.) Department of Energy (DOE) (Division of Chemical Sciences)
- Engineering and Physical Sciences Research Council (U.K.) EPSRC [EP/G00224X/1]
- European Union (EU) [238671]
- STFC through a PNPAS award
- STFC [ST/J002895/1]
- ERC
- ISIS Innovation Ltd.
- Engineering and Physical Sciences Research Council [EP/G00224X/1] Funding Source: researchfish
- Science and Technology Facilities Council [ST/J002895/1, ST/L00125X/1] Funding Source: researchfish
- EPSRC [EP/G00224X/1] Funding Source: UKRI
- STFC [ST/L00125X/1, ST/J002895/1] Funding Source: UKRI
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A new technique for studying surface photochemistry has been developed using an ion imaging time-of-flight mass spectrometer in conjunction with a fast camera capable of multimass imaging. This technique, called pixel imaging mass spectrometry (PImMS), has been applied to the study of butanone photooxidation on TiO2(110). In agreement with previous studies of this system, it was observed that the main photooxidation pathway for butanone involves ejection of an ethyl radical into vacuum which, as confirmed by our imaging experiment, undergoes fragmentation after ionization in the mass spectrometer. This proof-of-principle experiment illustrates the usefulness and applicability of PImMS technology to problems of interest within the surface science community. (C) 2013 AIP Publishing LLC.
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