Abstract
The adsorption of ethylamine on Ni 2 P/SiO 2 was studied by diffuse-reflectance Fourier transform infrared (FTIR) spectroscopy, temperature-programmed desorption (TPD), and ab initio calculations. The FTIR results indicate that ethylamine is adsorbed molecularly on the freshly reduced surface, but in the form of an ethylammonium species on the fresh surface exposed to H 2 S. The TPD results indicate that ethylamine is held strongly, and decomposes to release ammonia at 500 K and ethylene at 883 K. The ethylammonium species is more reactive and releases ammonia at 634 K and ethylene at 622 K. Molecular orbital calculations for the adsorbed ethylamine give good agreement between experimentally observed vibrational frequencies and calculated values. These results indicate that on the freshly reduced surface ethylamine interacts through its nitrogen lone pair with Ni sites in a Lewis acid-base manner.
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.
