Physicochemical and catalytic properties of nanosized Au/CeO2 catalysts for eco-friendly oxidation of benzyl alcohol

PdCu Nanoparticles Stabilized on Porous CeO2 for Catalytic Degradation of Azo Dyes: Structural Characterization and Kinetic Studies

“…The growth of this band indicates the creation of oxygen vacancies which signify at the same time more Ce 3+ content in the samples. The UV‐visible DR spectrum of a CeO 2 exhibits three adsorption maxima at ∼255, 285 and 340 nm (Figure d) which are due to Ce 3+ ←O 2− charge transfer (255 nm), Ce 4+ ←O 2− (285) and inter band transitions (340 nm), respectively . To study the surface and textural property of the CeO 2 nanoparticles, N 2 adsorption/desorption experiments were performed at liquid N 2 temperature (‐196 °C) using Brunauer‐Emmett‐Teller (BET) method.…”

Synthesis, characterization, DNA binding and catalytic applications of Ru(III) complexes

“…A blank experiment was also carried out which revealed that in the absence of the complex, only less than 10% yield of benzaldehyde was detected, suggesting that in the absence of the ruthenium complex H 2 O 2 itself is able to oxidize benzyl alcohol as a stoichiometric oxidant, while in the presence of the ruthenium complex, H 2 O 2 is able to trigger a recycling of the active species which expected to be ruthenium-oxo species (Ru IV @O) and thereby increase the final yield (75-85%). However, upon comparing our catalyst system with other systems in the literature [56][57][58] it was found that the catalyst systems, Au/CeO-direct anionic exchange/O 2 [56] and HNO 3 -promoted/nanotubes (CNTs/O 2 [57] oxidized benzyl alcohol to benzaldehyde in 89% and the reaction is 5 h (Scheme 1).…”

“…Many ruthenium(III) complexes [56][57][58] have been used as catalysts for oxidation of benzyl alcohol to benzaldehyde with different co-oxidants. However, catalytic methods based on transition metals need stringent reaction conditions and high cost of the ligand, or have the disadvantages like long reaction time and high temperature.…”

Electrospun Au/CeO2 nanofibers: A highly accessible low-pressure drop catalyst for preferential CO oxidation

“…The calculate dspacing corresponds to that of metallic gold. On the other hand, in ceria fibers calcined at low temperature it was not possible to obtain the size distribution of AuNP because the identification of smaller gold nanoparticles from ceria nanoparticles (size ≈5 nm) is hardly noticeable due to poor contrast between the Au and cerium [40]. Previous literature reports confirm the difficult detection of gold nanoparticles on CeO 2 using TEM when the metal dispersion is very high [41].…”