In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS

Structural transformation of Pd-α-Fe2O3 and Pd-γ-Fe2O3 catalysts and application in the CO oxidation reaction

“…Recently, Pd based catalysts have been studied widely because of their lower price and superior catalytic activity in low temperature reactions. However, the reactive performance of supported Pd catalysts was markedly inuenced by a series of parameters, including the size and shape of palladium nanoparticles, 16 the chemical valence of the palladium, [17][18][19][20] and the interaction between the palladium and oxide support. The former two factors were mainly studied in the mono-Pd catalysts.…”

Promoting Effect of Bismuth Oxide on Palladium for Low‐Temperature Carbon Monoxide Oxidation

“…Notably, the Pd 3p 3/2 peak (BE≈532.8 eV) overlaps with the O 1s peaks. An additional peak at BE=532.4 eV is observed for Pd&Bi(1.4)/TiO 2 ‐N, which may be caused by the surface oxygen species related to Pd and Bi interfaces . The corresponding atomic compositions of the various samples are summarized in Table S2.…”

“…An additional peak at BE = 532.4 eV is ChemCatChem 2017, 9,499 -504 www.chemcatchem.org observedf or Pd&Bi(1.4)/TiO 2 -N, which may be caused by the surfaceo xygen speciesr elatedt oP da nd Bi interfaces. [41][42][43][44] The correspondinga tomicc ompositions of the various samples are summarized in Ta bleS2. Such ap eculiarity may be an origin of the high activity and stabilityf or CO oxidation on Pd&Bi(1.4)/ TiO 2 -N.…”

Facile Synthesis of Carbon‐Supported Ultrasmall Ag@Pd Core‐Shell Nanocrystals with Superior Electrocatalytic Activity for Direct Formic Acid Fuel Cell Application

“…The peak positions of Ag 3d 5/2 and Ag 3d 3/2 for Ag(I) species were found to shift to lower binding energy than that of Ag 0 . By comparing to the previous references [30,31] where the Pd 3d binding energies have been measured for Pd 0 , Pd x O (x＞1), PdO and PdO 2 , the binding energies about 335.8 eV (Pd 3d 5/2 ) and 340.8 eV (Pd 3d 3/2 ) for the Ag@Pd/C-2 can be assigned to Pd x O while those at 336.4 eV (Pd 3d 5/2 ) and 342.0 eV (Pd 3d 3/2 ) correspond to PdO. 19.8% and 80.2%, respectively.…”