CdS nanoparticles were constructed onto one-dimensional (1D) CeO2 nanorods by a two-step hydrothermal method. The X-ray diffraction (XRD), transmission election microscopy (TEM), Raman spectra, photoelectron spectra (XPS) and UV-Vis diffuse reflection spectroscopy (DRS) techniques used to characterize these CdS/CeO2 nanocomposites. It was concluded that when the molar ratio of 1:1, nanocomposit...

Although water contamination with drug residues is a threat to public health, there are currently barely any effective methods of purifying from pharmaceutical substances. In this study, continuous-flow sonoplasma treatment was used for the complete degradation tetracycline and ciprofloxacin in polluted municipal water. The addition CeO2 nanoparticles as catalysts significantly increased rate a...

CeO2-MO x (M = Cu, Co, Ni) composite yolk-shell nanospheres with uniform size were fabricated by a general wet-chemical approach. It involved a non-equilibrium heat-treatment of Ce coordination polymer colloidal spheres (Ce-CPCSs) with a proper heating rate to produce CeO2 yolk-shell nanospheres, followed by a solvothermal treatment of as-synthesized CeO2 with M(CH3COO)2 in ethanol solution. Du...

A high-throughput pulsed laser ablation (HT-PLA) system was developed to rapidly prepare uniformly sized singleand multi-metallic nanoparticles with different diameters for catalytic applications. Catalytic materials containing Rh, bimetallic Rh/Pt and trimetallic Rh/Pt/Au nanoparticles were synthesized from targets prepared by blending, tableting and sintering powders of pure metals, and by di...

Phase stability of transition metal nanoparticles during exposure to elevated temperature and gaseous environment is a highly relevant topic in catalytic research with broad implications for rationalization of catalytic properties and design of new catalytic materials. For Pd based catalysts, the phase stability under oxidizing environment represents an important topic as many Pd based catalyst...

A novel regenerated cellulose (RC) membrane containing cerium oxide (CeO2) nanoparticles is described in detail. In this work, CeO2 with high surface area and mesoporosity were prepared by a modified template-assisted precipitation method. Successful synthesis was achieved using nitrate as precursor, adjusting the final pH solution to around 11 ammonium hydroxide ethylene diamine, annealing at ...

In this study, pure ZnO, CeO2 and ZnO/CeO2 nanocomposites were synthesized using a thermal decomposition method and subsequently characterized using different standard techniques. High-resolution X-ray photoelectron spectroscopy measurements confirmed the oxidation states and presence of Zn(2+), Ce(4+), Ce(3+) and different bonded oxygen species in the nanocomposites. The prepared pure ZnO and ...

Uniform clusters of Pt have been deposited on the surface of capping-agent-free CeO2 nanooctahedra and nanorods using electron beam (e-beam) evaporation. The coverage of the Pt nanocluster layer can be controlled by adjusting the e-beam evaporation time. The resulting e-beam evaporated Pt nanocluster layers on the CeO2 surfaces have a clean surface and clean interface between Pt and CeO2. Diffe...

The magnetic properties and electronic structures of pure, doped and defective cerium oxide (CeO2) have been studied theoretically by means of ab initio calculations based on the density function theory (DFT) with the hybrid HF/DFT technique named PBE0. Carbon (C), nitrogen (N), phosphorus (P), sulphur (S), lanthanum (La) and praseodymium (Pr) doped in CeO2 and CeO2 containing oxygen vacancies ...

DFT+U calculations of the structure of CeO2(111)-supported Aubased bimetallic nanoclusters (NCs) show that a strong support−metal interaction induces a preferential segregation of the more reactive element to the NC−CeO2 perimeter, generating an interface with the Au component. We studied several Au -based bimetallic NCs (Au-X, X: Ag, Cu, Pd, Pt, Rh, and Ru) and found that (Au− Cu)/CeO2 is opti...