Results 31 to 40 of about 15,328 (167)

Catalytic Hydrogenation of Succinic Acid Using Materials of Fe/CeO2, Cu/CeO2 AND Fe-Cu/CeO2

open access: yesCroatica Chemica Acta
La réaction d'hydrogénation de l'acide succinique en phase liquide a été étudiée en utilisant les catalyseurs métalliques supportés, Fe/CeO2, Cu/CeO2 et Fe-Cu/CeO2. Le support CeO2 a été préparé par la méthode de précipitation et les solides métalliques supportés par imprégnation à sec du support. Pour les solides monométalliques, un pourcentage de fer
Alexis Lorenzo Ruíz   +7 more
openaire   +2 more sources

Ultrasonically-assisted synthesis of CeO2 within WS2 interlayers forming type II heterojunction for a VOC photocatalytic oxidation

open access: yesUltrasonics Sonochemistry, 2023
Here, we investigate the band structure, density of states, photocatalytic activity, and heterojunction mechanism of WS2 with CeO2 (CeO2@WS2) as a photoactive heterostructure.
Esmail Doustkhah   +6 more
doaj   +1 more source

The nature of oxygen states on the surfaces of CeO2 and La-doped CeO2 [PDF]

open access: yesChemical Physics Letters, 2014
Abstract The oxygen states on CeO 2 surfaces were investigated with DFT +  U calculations. The results reveal the variable nature of the oxygen states, including the never before modeled intrinsic peroxide surface defect. Under O-rich conditions, the peroxide defects on the (1 0 0) and (1 1 0) surfaces is more stable than oxygen vacancies.
Patrick R.L. Keating   +2 more
openaire   +3 more sources

The Effect of Different Molar Ratios of CeO2 on Photoluminescence Properties of CeO2/TiO2 Nanoparticles

open access: yesIndian Journal of Pure & Applied Physics, 2023
The CeO2-TiO2 nanoparticles were prepared by a combination of hydrothermal and sol-gel preparation methods. The bond structures and crystal properties of the obtained materials were featured with X-ray diffraction, FTIR, Raman, and Bet analysis; surface morphologies were examined with the help of FESEM and STEM.
Dokan, Fatma Kılıç   +3 more
openaire   +2 more sources

Transition metal doped CeO2 for photocatalytic removal of 2-chlorophenol in the exposure of indoor white light and antifungal activity

open access: yesFrontiers in Chemistry, 2023
Besides natural sunlight and expensive artificial lights, economical indoor white light can play a significant role in activating a catalyst for photocatalytic removal of organic toxins from contaminated water.
M. Tariq Qamar   +13 more
doaj   +1 more source

Effect of Metal Oxides on Reaction Route and Product Distribution of Catalytic Cellulose Hydrogenolysis

open access: yesBioResources, 2023
The effects of CeO2, ZrO2, Nb2O5, and ZnO catalysts supported on carbon nanotubes (CNT) relative to cellulose hydrothermal hydrogenolysis in the presence of Ni/CNT and pressured H2 was studied in this work. The catalysts were characterized by inductively
Guifang Fan   +4 more
doaj   +2 more sources

ANALYSIS OF STRUCTURE AND ANTIMICROBIAL ACTIVITY OF CeO2 AND Nd2O3 NANOPARTICLES

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2019
Cerium oxide (CeO2) and Neodymium oxide (Nd2O3) nanoparticles using local content have been synthesized by precipitation method. The CeO2 and Nd2O3 nanoparticles were characterized by X-Ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) to ...
Hanif Yuliani   +9 more
doaj   +1 more source

MOF-Derived Zr-Doped CeO2 for the Synthesis of Dimethyl Carbonate from CO2 and Methanol

open access: yesShiyou huagong gaodeng xuexiao xuebao
The conversion of CO2 to dimethyl carbonate (DMC) represents a promising route for sustainable synthesis and carbon resource utilization. In this study, a series of Zr-doped CeO2 catalysts derived from metal–organic frameworks (MOFs) via hydrothermal ...
Siru CHEN   +7 more
doaj   +1 more source

In Situ Preparation of CeO2/Bi2WO6 Nano Composite and Its Brilliant Catalytic Activity for Reduction of Dye Pollutants, Chromium (Vi), 4-Nitrophenol and 4-Nitroaniline [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The CeO2/Bi2WO6 nanocomposite was synthesized using sonochemical and hydrothermal methods. It was studied for its catalytic activity in reducing 4-nitrophenol (4-NP), 4-nitroaniline (4-NA), chromium (VI), rhodamine B(RhB) and Methylene Blue (MB) in ...
Ahmad Amani   +2 more
doaj   +1 more source

High-Pressure Metathesis Synthesis and Physical Property Characterization of Cubic Fluorite-Structured CeO2Cl0.07

open access: yesGaoya wuli xuebao
The 4f electron of Ce has long attracted extensive attention due to their unique delocalization mechanism and their influence on atomic structure, phase transformation behavior, and magnetic structure.
Xingjian KOU   +3 more
doaj   +1 more source

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