Abstract
CH3CH2OD (deuterated ethanol) pulses (5 × 10−4 ML, 20 ms) are offered to polycrystalline ZnO under ultra high vacuum conditions. The reaction products are monitored with a rate of 1000 spectra per second by a time of flight mass spectrometer. D2O and CO2, both including lattice oxygen, are observed in desorption. The creation of surface oxygen vacancies destabilizes zinc atoms nearby which appear also in desorption. The rate constant ka (inverse relaxation time) increases below 900 K. Above this temperature ka decreases. The decrease may be due to bulk oxygen diffusing to the surface and refilling the surface oxygen vacancies.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
