This study outlines the quantitation and characterization of element oxide nanoparticles (Al2O3, and CeO2) commonly used in the nanoelectronics and semiconductor fabrication industry for the chemical-mechanical planarization (CMP) of semiconductor surfaces. CMP is a process of smoothing surfaces with the combination of chemical and mechanical forces in preparation for photolithography. The proc...

Active Pt-based catalysts at low temperature towards the preferential oxidation of carbon monoxide in hydrogen-rich stream reaction (CO-PROX) are great importance for H2-fueled fuel cells, but still remain a challenge. Herein, we propose simple approach to synthesize highly active Pt20Fe/CeO2 catalyst employing borohydride reduction process. Transmission electronic microscopy revealed monodispe...

A series of Ce1 ́xCoxO2 ́y precursors were prepared by homogeneous precipitation using urea as a precipitant. The Co/CeO2 catalysts obtained from the Ce1 ́xCoxO2 ́y precursors were used for the steam reforming of ethanol to produce hydrogen. Co ions could enter the CeO2 lattices to form Ce1 ́xCoxO2 ́y mixed oxides at x ď 0.2 using the homogeneous precipitation (hp) method. CeO2 was an excellent suppo...

Reduction behaviors, oxygen vacancies and hydroxyl groups play decisive roles in the surface chemistry and catalysis of oxides. Employing isothermal H2 reduction we simultaneously reduced CeO2 nanocrystals with different morphologies, created oxygen vacancies and produced hydroxyl groups. The morphology of CeO2 nanocrystals was observed to strongly affect the reduction process and the resultant...

Rapid degradation of cell performance still remains a significant challenge for proton exchange membrane fuel cell (PEMFC). In this work, we develop novel CeO2 nanocubes-graphene oxide nanocomposites as durable and highly active catalyst support for proton exchange membrane fuel cell. We show that the use of CeO2 as the radical scavenger in the catalysts remarkably improves the durability of th...

In the present work, pure and Sn-doped CeO2 nanoparticles (NPs) were synthesized by chemical precipitation method calcined at 400 ºC for 4 h. Characterization of NPs was done through X-ray diffraction (XRD), UV-visible, photoluminescence (PL), Fourier transform infrared (FTIR) spectroscopy high-resolution electron microscope (HRTEM) techniques. The XRD study revealed crystalline nature, size, s...

The present contribution reports a novel electrode based on an ITO substrate surface-modified with nanofilm of nickel tetrasulfonated phthalocyanine (NiTsPc) cerium oxide nanoparticles (CeO2) for the effective differential pulse voltammetric detection acetaminophen, which is contaminant emerging concern (CEC). optimized ITO/NiTsPc/CeO2 responds linearly (r2 > 0.99) to acetaminophen in range ...