Abstract
The temperature-programmed desorption (TPD) chromatograms of ethylene from platinum black comprised three peaks, A, B, and C, with peak maxima at about 370, 500, and higher than 720 K. Peak A was identified to be ethane only, or to be a mixture of ethylene and ethane. Peaks B and C were methane formed from chemisorbed ethylene by decomposition as the temperature was raised during the subsequent TPD. The reactivity of various types of chemisorbed hydrogen previously detected by TPD was also investigated for the hydrogenation of ethylene. Two types of chemisorbed hydrogen, presumed to be present on the surface in the form of hydrogen atoms chemisorbed on top of platinum atoms and in the bridge form of molecular hydrogen, were found to react with ethylene.
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.
