Abstract
Active hydrogen species and their dynamics in ethylene hydrogenation reaction were elucidated by in situ INS and DFT calculations.
Highlights
The activation of H2 and the dynamics of H species on the metal particles supported on metal oxide have been studied to understand the role of metals and supports during various hydrogenation reactions
The H spillover on metal oxides well depends on the surface properties of the metal oxide supports, which may change during the hydrogenation reactions
We demonstrated that the H species are the Pt–H species [edge, terrace, perimeter Pt–H–Pt [6,7,8], Pt3–Hfcc [9], Pt3–Hhcp [10]], and AlO–H [1,2,3] and Al–H–Al [4,5]
Summary
The activation of H2 and the dynamics of H species on the metal particles supported on metal oxide have been studied to understand the role of metals and supports during various hydrogenation reactions. Paper (activation) on the Pt surface is the rate-determining step for the ethylene hydrogenation reaction.. The H spillover on metal oxides well depends on the surface properties of the metal oxide supports, which may change during the hydrogenation reactions.. The H spillover on metal oxides well depends on the surface properties of the metal oxide supports, which may change during the hydrogenation reactions.5,15 These reaction mechanisms have been based on the reaction results and structural characterization, but not yet supported by direct observation of the H species involved Paper (activation) on the Pt surface is the rate-determining step for the ethylene hydrogenation reaction. High activity and selectivity in the hydrogenation of acetylene to ethylene were achieved by promoting the activation of H2 and anticoking, which were induced by Pd catalysts. In the case of the de-NOx reaction with H2 on Pt/MgO and Pt/CeO2 catalysts, the H species activated by the Pt metal was found to migrate to the MgO and CeO2 supports and react with the NO species adsorbed on these supports. The H spillover on metal oxides well depends on the surface properties of the metal oxide supports, which may change during the hydrogenation reactions. these reaction mechanisms have been based on the reaction results and structural characterization, but not yet supported by direct observation of the H species involved
Sign-in/Register to view highlights & summary 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 call
