Effective modification of Pd surfaces with TiO2 promoters using selective chemical vapor deposition and the effect on catalytic performance improvement

Recent research advances on catalysts for selective hydrogenation of ethyne

“…TiO 2 modification tuned the geometric structure of the Pd surface and consequently benefited the selectivity towards ethylene. 74 In the case where both TiO 2 and La 2 O 3 were adopted to modify Pd-based catalysts, La 2 O 3 modified the surface structure of Pd nanoparticles while TiO 2 tuned the electronic state of Pd nanoparticles. Titanium oxides prevent La and Nb oxides from migrating to the Pd surface during high-temperature reduction and migrating to their original positions in air.…”