User: Guest  Login
Author(s):
Woerz, Anke S.; Judai, Ken; Abbet, Stephane; Antonietti, Jean-Marie; Heiz, Ulrich; Del Vitto, Annalisa; Giordano, Livia; Pacchioni, Gianfranco 
Title:
Chemistry on single atoms. Key factors for the acetylene trimerization on MgO-supported Rh, Pd, and Ag atoms 
Abstract:
Acetylene trimerization on Ag, Rh, and Pd atoms supported on the MgO (0 0 1) surface was studied exptl. and theor. The electronic configuration of Ag renders these atoms inert both as free or supported atoms. The reactivity of Pd and Rh is strongly influenced by their adsorption and by their diffusion dynamics on the MgO surface. Pd atoms are turned into active catalysts only when adsorbed on O vacancies (F centers). The low activation barriers computed for cyclotrimerization on free Rh atoms ar...    »
 
Keywords:
F-centers Surface state Trimerization Trimerization catalysts (acetylene trimerization on MgO-supported Rh, Pd, and Ag atoms) Diffusion Reactivity (surface acetylene trimerization on MgO-supported Rh, Pd, and Ag atoms) rhodium palladium silver catalyst atom magnesia surface acetylene trimerization 
Congress title:
CAN 142:63188 66-3 Surface Chemistry and Colloids Institute of Surface Chemistry and Catalysis, University of Ulm, Ulm, Germany. Journal 0009-2614 74-86-2 (Acetylene) Role: CPS (Chemical process), PEP (Physical, engineering or chemical process), PRP (Properties), PROC (Process) (acetylene trimerization on MgO-supported Rh, Pd, and Ag atoms); 1309-48-4 (Magnesia) Role: NUU (Other use, unclassified), USES (Uses) (acetylene trimerization on MgO-supported Rh, Pd, and Ag atoms); 7440-05-3 (Palladiu...    »
 
Journal title:
Chem. Phys. Lett. 
Year:
2004 
Journal volume:
399 
Journal issue:
1-3 
Pages contribution:
266-270