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Journal articles on the topic 'Oxide de Cerium'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Janoš, Pavel, Jakub Ederer, and Marek Došek. "Some Environmentally Relevant Reactions of Cerium Oxide." Nova Biotechnologica et Chimica 13, no. 2 (2014): 148–61. http://dx.doi.org/10.1515/nbec-2015-0005.

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Abstract Reactive forms of cerium oxide were prepared by a thermal decomposition of various precursors, namely carbonates, oxalates and citrates, commercially available nanocrystalline cerium oxide (nanoceria) was involved in the study for comparison. Scanning electron microscopy (SEM) and x-ray diffraction analysis (XRD) were used to examine the morphology and crystallinity of the samples, respectively, whereas the Brunauer-Emmett-Teller (BET) method of nitrogen adsorption was used to determine surface areas. Interactions of cerium oxide with some phosphorus-containing compounds were investig

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2

Venkatesan, S. P., P. N. Kadiresh, and K. Suresh Kumar. "Experimental Investigation of Aqueous Cerium Oxide Nanofluid Blend in Diesel Engine." Advanced Materials Research 938 (June 2014): 286–91. http://dx.doi.org/10.4028/www.scientific.net/amr.938.286.

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Influence of aqueous cerium oxide nanofluid on the major physicochemical properties of diesel and the performance and exhaust emission characteristics of diesel engine were investigated. 50cc of aqueous cerium oxide nanofluid was dispersed into 1 litre of diesel fuel for preparing test fuel. The diesel with and without aqueous cerium oxide nanofluid was tested in a direct injection diesel engine at 0%, 25%, 50%, 75%, and 100% of full load condition. nanosized cerium oxide has more surface area, higher activity and can react with water at high temperature to generate hydrogen and improve fuel c

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3

Shah, M. Nazri Abu, S. Hanim Md Nor, Kamariah Noor Ismail, and Abdul Hadi. "Overview: Modification of Cerium Oxide in Three-Way Catalysts." Applied Mechanics and Materials 575 (June 2014): 97–102. http://dx.doi.org/10.4028/www.scientific.net/amm.575.97.

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An overview of modification of cerium oxide, CeO2which is employed in the three-way catalyst (TWCs) is presented in this article. The modifications of cerium oxide, CeO2incorporated with the metal oxides for the improvement of thermal stability, microstructure and oxygen storage capacity (OSC) are discussed. In view of that, the types of metal oxide are grouped into transition metals, rare earth metals, and alkaline metals and the effect of each group into cerium oxide, CeO2are elaborated.

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4

Sabeena, G., S. Rajaduraipandian, S. Gandhimathi, and G. Annadurai. "Synthesis and Characterization of Cerium Oxide Nanoparticles and Cerium oxide/silica Nanocomposites by using Adsorption of Dyes from Aqueous Solution." Research Journal of Chemistry and Environment 26, no. 9 (2022): 49–59. http://dx.doi.org/10.25303/2609rjce049059.

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Nanostructured cerium oxide (CeO2) usually identified by way of Nano ceria is an erratic earth metal oxide which plays a technologically significant role owing to its adaptable solicitations by way of automobile finish substances, oxide ion conductors in solid oxide cells, ultraviolet absorbents and glass-polishing materials. Metal oxides are excellent innovative adsorbents aimed at the elimination of dye ingredients. In this study, we describe a nanostructured cerium oxide nanocomposite adsorbent, which displays remarkable efficiency toward the removal of widely used Congo red (CR) from aqueo

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5

Zhang, Xian Long, Lian Feng Zhang, Heng Jian Zhang, et al. "Promotion of Cerium Oxide as Additive over MnOx/PG SCR Catalysts for Low Temperature Flue Gas NO Removal." Advanced Materials Research 726-731 (August 2013): 2264–69. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.2264.

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Manganese oxides supported palygorskite (MnOx/PG) catalysts used for low-temperature selective catalytic reduction of NO with NH3was modified by doping cerium oxide as additive for enhancement of its performance. The effects of doped cerium content on catalysts' activity were investigated. It was found that the NO removal efficiency of Mn8Ce5/PG catalyst was remarkably higher than Mn8/PG catalyst especially at low temperatures, revealing that the addition of cerium oxide effectively enhanced the catalysts' SCR activity. Catalysts were characterized by BET, XRD, XPS to explore the relation betw

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6

Liu, Xiao Zhen, Wei Ren Rong, Xiao Zhou Liu, Xiao Hui Ren, Jie Chen, and Ying Zhu. "Preparation of Cerium Dioxide Film by Anodization in Na₂C₂O₄-NH₃∙H₂O-H₂O-(CH₂OH)₂ Electrolyte." Key Engineering Materials 748 (August 2017): 7–11. http://dx.doi.org/10.4028/www.scientific.net/kem.748.7.

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The cerium dioxide films were prepared with cerium foils as raw materials by anodization in Na2C2O4-NH3∙H2O-H2O-(CH2OH)2 electrolyte. The anodic cerium oxide film was heat treated at 550°C. The cerium dioxide films were characterized with X-ray diffraction (XRD), energy-dispersive analyses of X-ray (EDAX), Fourier transform infrared (FTIR) techniques and scanning electron microcopy (SEM), respectively. The anodic cerium oxide film is semi crystalline film. The heat treated anodic cerium oxide film at 550°C is the fluorite-structured cerium dioxide film, and the crystal structure of the cerium

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7

Flytzani-Stephanopoulos, Maria. "Nanostructured Cerium Oxide “Ecocatalysts”." MRS Bulletin 26, no. 11 (2001): 885–89. http://dx.doi.org/10.1557/mrs2001.229.

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Catalysts based on cerium oxide are now used as effective oxidation systems in numerous environmental applications. Cerium oxide was introduced into the catalysis field relatively recently, in 1976, and not as a catalyst initially. Rather, it was chosen as the key oxygen-storage component of the three-way catalyst (TWC) used in automotive exhausts. Accordingly, ceria is used to extend the air/fuel ratio window in the exhaust gas, releasing or accepting oxygen, respectively, under fuel-rich or fuellean conditions, so that the noble metal catalyst operates at the desirable stoichiometric air/fue

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8

Liu, Zhaogang, Mei Li, Yanhong Hu, Hai Fu, Mitang Wang, and Zaiyong Jiang. "DISPERSION AND MECHANICAL PROPERTIES OF CERIUM OXIDE FILLED INTO RUBBER COMPOSITES." Rubber Chemistry and Technology 87, no. 2 (2014): 340–47. http://dx.doi.org/10.5254/rct.13.86993.

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ABSTRACT Rubber composites were synthesized by natural rubber filled with cerium oxide with different particle diameters. The dispersion morphology of cerium oxide in rubber matrix and the mechanical properties of composites were studied, and the contrast experiment of reinforcing rubber with cerium oxide was performed. The results showed that the small particles of cerium oxide had better disparity than the large particles of cerium oxide in NR. The mechanical properties of rubber filled with small particles of cerium oxide were better than those of rubber filled with large particles of ceriu

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9

Janoš, Pavel, Tomáš Hladík, Martin Kormunda, Jakub Ederer, and Martin Šťastný. "Thermal Treatment of Cerium Oxide and Its Properties: Adsorption Ability versus Degradation Efficiency." Advances in Materials Science and Engineering 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/706041.

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Cerium oxide belongs to the most important heterogeneous catalysts, but its applicability as so-called reactive sorbent for the degradation of toxic chemicals was only recently discovered. For these purposes, cerium oxide is prepared by precipitation of insoluble cerium salts (carbonates) with a subsequent thermal decomposition. Properties of cerium oxide prepared from the carbonate precursor are strongly affected by the temperature during the calcination. Main physicochemical properties of cerium oxide (specific surface area, crystallinity, and surface chemistry) were examined in dependence o

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10

Chen, Jian Qing, Dong Hui Yang, Yong Wei, Jing Hua Jiang, Ai Bin Ma, and Dan Song. "Fluoride Adsorption Properties of CeO₂ Powders and Al Foam Loaded CeO₂." Materials Science Forum 814 (March 2015): 118–24. http://dx.doi.org/10.4028/www.scientific.net/msf.814.118.

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Cerium oxide powder and aluminum foam loaded cerium oxide were prepared by hydrothermal method using cerium nitrate hexahydrate and dimethyl oxalate (DMO) as raw material. Cerium oxide precursors and cerium oxide particles were characterized by field emission scanning electron microscopy (FESEM). Aluminum foam loaded cerium oxide was characterized by environment scanning electron microscopy (ESEM). On the basis of calculation and fitting of the experimental data, effect of the particle size on the adsorption rate, desorption rate and concentration of surface active sites of the powder and comp

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11

Mohamed, HudaElslam, Unal Camdali, Atilla Biyikoglu, and Metin Aktas. "Enhancing the Performance of a Vapour Compression Refrigerator System Using R134a with a CuO/CeO2 Nano-refrigerant." Strojniški vestnik - Journal of Mechanical Engineering 68, no. 6 (2022): 395–410. http://dx.doi.org/10.5545/sv-jme.2021.7454.

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Most studies report that dispersing nanoparticles into refrigerants and lubricating oils leads to performance improvements in refrigeration systems, due to improvements in the thermal physics properties of a pure refrigerant, which leads to reduced energy consumption. Using nanoparticles in a refrigeration system is associated with many difficulties, such as the cost of preparing and obtaining a stable and homogeneous mixture with less agglomeration and sedimentation. Most current studies focus on the use of metals, metal oxides, and a hybrid of oxides as nanoparticles in refrigeration systems

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12

Abdulsattar, Sura A. "Cerium Oxide Nanoparticles Role as Antioxidant." Medical Journal of Babylon 21, no. 2 (2024): 235–39. http://dx.doi.org/10.4103/mjbl.mjbl_1022_23.

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Abstract Cerium oxide nanoparticles (NPs), also known as ceria NPs, are particles of cerium oxide with sizes in the nanometer range. Cerium oxide (CeO2) is a compound composed of cerium and oxygen, and when it is reduced to NPs, it exhibits unique properties and applications. Cerium oxide NPs possess excellent catalytic properties. Cerium oxide NPs can switch between different oxidation states, Ce+4 and Ce+3, by gaining or losing oxygen atoms. This redox activity enables them to scavenge and neutralize free radicals and reactive oxygen species through their ability to cycle between these state

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13

Nurhasanah, Iis, Arvia Arvia, Nor Basid Adiwibawa Prasetya, and Ahmad Jauhari. "Fabrication of Cerium Oxide-Graphene Oxide Nanocomposite using Ultrasound-Assisted Precipitation Method." INDONESIAN JOURNAL OF APPLIED PHYSICS 14, no. 2 (2024): 234. http://dx.doi.org/10.13057/ijap.v14i2.81259.

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<p class="Abstract">The cerium oxide-graphene oxide nanocomposite was fabricated by ultrasound-assisted precipitation method and characterized using Fourier transform infrared, UV-Vis spectroscopy, X-ray diffractometer, and transmission electron microscope. The Fourier transform infrared spectra displayed the vibrations of O-H, C=C, and C-H indicating the interaction between cerium oxide and graphene oxide. The broad absorption of around 300 nm is ascribed to the superposition of cerium oxide and graphene oxide absorption peaks. X-ray diffraction pattern analysis suggests the creation of

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14

Liu, Xiao Zhen, Yu Fan Ni, Xiao Zhou Liu, Le Tian Xia, Jie Chen, and Xiao Yu Zheng. "Effect of Heat Treatment on the Crystal Structure of the Anodic Cerium Oxide Films." Key Engineering Materials 748 (August 2017): 12–16. http://dx.doi.org/10.4028/www.scientific.net/kem.748.12.

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The cerium dioxide films were prepared with cerium foils as raw materials by anodization in Na2C2O4-NH3∙H2O-H2O-(CH2OH)2 electrolyte. The anodic cerium oxide films were heat treated in 100~400°C and 0.5~2.5h, respectively. The heat treated anodic cerium oxide films were characterized with X-ray diffraction (XRD). The heat treated anodic cerium oxide film at 100°C is semi crystalline film. The heat treated anodic cerium oxide film at 200°C, 300°C, 350°C, 400°C, respectively for 2h, is the cerium dioxide film respectively, and has a structure of cubic fluorite respectively. The crystal structure

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15

T.Ch.Taghiyeva, T. Ch Taghiyeva. "X-RAY DIFFRACTION STUDY OF BINARY ZINC-OXIDE CATALYSTS." Azerbaijan Journal of Chemical News 04, no. 01 (2022): 60–64. http://dx.doi.org/10.32010/ajcn5012022-60.

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The phase composition of binary zinc-containing catalysts was studied by X-ray diffraction. It was found that the formation of two phases of the initial oxides is observed in all the studied catalytic systems. So, samples of the Zr-Zn-O catalytic system consist of phases of zirconium and zinc oxides, samples of the Ce-Zn-O catalytic system consist of phases of cerium and zinc oxides, while samples of the Mg-Zn-O catalytic system consist of phases of magnesium and zinc oxides. It has been established that the crystallinity of binary zinc-containing catalysts varies in the range from 70% to 89%.

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16

SANKAR, J., and S. SURESH KUMAR. "Synthesis and Characterization of Nano Cerium Oxide Using Hydrothermal Technique." INCAS BULLETIN 13, no. 1 (2021): 173–81. http://dx.doi.org/10.13111/2066-8201.2021.13.1.18.

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Cerium oxide rice grain like nanoparticles have been synthesized using wet chemical hydrothermal synthesis method. Hydrothermal synthesis method provides nanoparticles with unique dimension and shape due to supercritical synthesis conditions than conventional precipitation techniques. The hydrothermal synthesis of Cerium salt in the presence of urea produces Cerium carbonate hydroxide nanoparticles with rice-grain morphology, which are reduced into Cerium oxide by heat-treating at 600°C, for 4 hours, without changing its morphology. The formation of Cerium carbonate hydroxide with orthorhombic

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17

Gilliss, Shelley R., Jeffrey K. Fairer, N. Ravishankar, Mark G. Schwabel, and C. Barry Carter. "Microanalysis of AFM Tips Coated with Cerium Oxide." Microscopy and Microanalysis 7, S2 (2001): 1236–37. http://dx.doi.org/10.1017/s1431927600032256.

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Cerium oxide is widely used for chemomechanical polishing (CMP) of silicate glasses. Uses include finishing of optical elements and planarizing dielectrics in the semiconductor industry. This study is designed to investigate the fundamentals of the cerium oxide/silica CMP process by measuring the interaction force between silicate glasses and cerium oxide. Surface forces involved in the polishing of glass by a cerium oxide abrasive can be studied in a controlled manner by measuring sample-tip interactions between a glass substrate and a cerium oxide tip in an atomic force microscope (AFM). Com

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18

Wang, Li-Pang, Yan-Jhang Chen, Yun-Chen Tso, et al. "Separation of Cerium Oxide Abrasive and Glass Powder in an Abrasive-Glass Polishing Waste by Means of Liquid–Liquid–Powder Extraction Method for Recovery: A Comparison of Using a Cationic and an Anionic Surfactant Collector." Sustainability 12, no. 11 (2020): 4662. http://dx.doi.org/10.3390/su12114662.

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Applying a cerium oxide abrasive to polish glass components generates a polishing waste containing the cerium oxide abrasive and the glass powder produced during polishing. This research applied the liquid–liquid–powder extraction method to separate the cerium oxide abrasive and the polished glass powder in an abrasive-glass polishing waste for recovering the cerium oxide abrasive. Two liquids of isooctane and water were utilized. The effectiveness of using a cationic and an anionic surfactant collector, i.e., dodecylamine acetate (DAA) and sodium oleate (NaOL), respectively, in improving thei

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19

Brazdil, James F. "The Emergence of the Ubiquity of Cerium in Heterogeneous Oxidation Catalysis Science and Technology." Catalysts 12, no. 9 (2022): 959. http://dx.doi.org/10.3390/catal12090959.

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Research into the incorporation of cerium into a diverse range of catalyst systems for a wide spectrum of process chemistries has expanded rapidly. This has been evidenced since about 1980 in the increasing number of both scientific research journals and patent publications that address the application of cerium as a component of a multi-metal oxide system and as a support material for metal catalysts. This review chronicles both the applied and fundamental research into cerium-containing oxide catalysts where cerium’s redox activity confers enhanced and new catalytic functionality. Applicatio

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20

Gu, Zi Ying, Hang Yu Gu, Xin Ke Peng, and Yong Xiu Li. "Preparation of Super-Fine Cerium Oxide Using Mechanically Chemical Method." Advanced Materials Research 508 (April 2012): 184–87. http://dx.doi.org/10.4028/www.scientific.net/amr.508.184.

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The cerium oxide powder has been modified with mechanically chemical method. The effect of modifier, reaction time, calcine temperature, and amount of additives on the particle size, density, and hardness of super-fine cerium oxide was investigated. The complex super-fine cerium oxide powder was prepared, whose physical state and feature were characterized. The results show that modifier and powder may interact, which improves the properties of super-fine cerium oxide.

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21

Markhiyano, Rokhy. "Pemanfaatan dan Pengaruh Cerium Oxide (CeO²) Terhadap Kualitas hasil Pemolesan Kaca Mobil Jenis Tempered dan Laminated Sebagai Peluang Bisnis Otomotif." Jurnal Penelitian Dan Pengkajian Ilmiah Eksakta 4, no. 1 (2025): 52–61. https://doi.org/10.47233/jppie.v4i1.1736.

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Indonesia memiliki perkembangan yang cukup signifikan pada dunia otomotif. Badan Statistik Nasional mencatat pertumbuhan kendaraan di Indonesia meningkat dengan pesat dari tahun ke tahun. Pemanfaatan cerium oxide (CeO₂) dalam industri pemolesan kaca mobil telah menarik perhatian karena kemampuannya dalam menghilangkan goresan dan meningkatkan kejernihan kaca. Penelitian ini bertujuan untuk mengeksplorasi efektivitas cerium oxide sebagai material abrasif dalam proses pemolesan kaca mobil. Hasil pengujian menunjukan pemolesan dengan menggunakan Cerium Oxide kemurnian 98% pada Grid amplas tunggal

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22

Liu, Ruidan, Xiaoyan Liu, Heng Yang, et al. "Effect of CeO2–GO Nanocomposite on the Anticorrosion Properties of Epoxy Coating in Simulated Acid Rain Solution." Polymers 14, no. 17 (2022): 3573. http://dx.doi.org/10.3390/polym14173573.

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The lamellar structure of graphene oxide and the filling effect of nano-cerium oxide particles together provide a good barrier and stability to coating. In this paper, cerium oxide-graphene oxide (4:1) nanocomposite was prepared by the hydrothermal synthesis method. The effect of cerium oxide–graphene oxide (4:1) nanocomposite on the anticorrosion properties of epoxy coating in simulated acid rain solution was studied by open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), Mott–Schottky curve, Tafel curve, and micromorphological characterization, in order to compare it w

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23

Grinko, А. M., А. V. Brichka, О. М. Bakalinska, and М. Т. Каrtel. "Application of nano cerium oxide in solid oxide fuel cells." Surface 12(27) (December 30, 2020): 231–50. http://dx.doi.org/10.15407/surface.2020.12.231.

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This review is analyzed the state of modern literature on the nanoceria based materials application as components for solid oxide fuel cells. The principle of operation of fuel cells, their classification and the difference in the constructions of fuel cells are described. The unique redox properties of nanosized cerium oxide make this material promising for application as components for solid oxide fuel cells (SOFC). Because of high ionic conductivity, high coefficient of thermal expansion and low activation energy at relatively low temperatures, cerium-containing materials are widely used as

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Feng, Shi Ye, Pan Gao, Chang Qing Dong, and Qiang Lu. "The Effect of Doping Ce and Fe on the Mn/TiO₂ Catalyst for Low Temperature NO Selective Catalytic Reduction with NH₃." Applied Mechanics and Materials 260-261 (December 2012): 1041–46. http://dx.doi.org/10.4028/www.scientific.net/amm.260-261.1041.

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A series of manganese-cerium oxide support titanium oxide with different Fe/Ti, Ce/Ti ratio were investigated for selectivity catalytic reduction of NO low at temperature with NH3 as a reducing agent. The catalysts base Mn/TiO2were prepared by sol-gel. The effect of amount of Ce and Fe oxide on the NO conversion of Mn/TiO22was studied. X-ray diffraction (XRD), temperature program desorption (TPD) were carried out. It was known that cerium oxides and iron oxide promoted preformance of Mn/TiO2 for low temperature. because Lewis is mainly take important role in the reaction for low temperature.

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Kuznetsova, Maria N., and Vera Yu Zhilkina. "Nanoparticles of cerium oxide. The application and cerium oxide toxicity assessment." Farmacevticheskoe delo i tehnologija lekarstv (Pharmacy and Pharmaceutical Technology), no. 2 (February 1, 2021): 38–43. http://dx.doi.org/10.33920/med-13-2102-02.

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Nanotechnology is the most perspective direction in the modern science and technic. The great interest in entire world has been observing to nanoparticles properties and their fields of use investigation. Cerium dioxide is a perspective oxide material which has wide use in different branches of industry due to its unique physical and chemical properties. Burst of interest to cerium oxide nanoparticles development and use in biology and medicine takes has been taking place recently. Scientists in many countries have been carrying out cerium oxide nanoparticles efficiency of use against various

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Song, Guangchun, Nan Cheng, Junjie Zhang, et al. "Nanoscale Cerium Oxide: Synthesis, Biocatalytic Mechanism, and Applications." Catalysts 11, no. 9 (2021): 1123. http://dx.doi.org/10.3390/catal11091123.

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Nanoscale cerium oxide has excellent catalytic performance due to its unique surface properties and has very important applications in various fields. In this paper, the synthesis methods, catalytic mechanism and activity regulation of nanoscale cerium oxide in recent years are reviewed. Secondly, the application of cerium oxide in the detection of organic and inorganic molecules is summarized, and its latest progress and applications in antibacterial, antioxidant and anticancer are discussed. Finally, the future development prospect of nanoscale cerium oxide is summarized and prospected.

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Noonari, Shoukat Ali. "Effect of Cerium Oxide Nanoparticles as Antibacterial on Staphylococcus Aureus Bacteria." Sukkur IBA Journal of Educational Sciences and Technologies 2, no. 1 (2022): 28–34. http://dx.doi.org/10.30537/sjest.v2i1.1103.

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ABSTRACT  In this study the antibacterial effect of cerium oxide nanoparticles(CON) particles on staphylococcus aureus bacteria was investigated. microwave induced technique were used for synthesized cerium oxide nanoparticles. sunthesized Cerium oxide nanoparticles were characterized by Scanning electron microscope (SEM) and X-ray diffraction (XRD) .It was noted that cerium oxide nanoparticles of 18-29 nanometre size were synthesized. XRD and SEM results found that with increasing synthesization time size of cerium oxide nanoparticles were decreased. The size of CON particles was influe

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Mishra, Prashant Kumar, Rakesh Kumar, and Pramod Kumar Rai. "Surfactant-free one-pot synthesis of CeO2, TiO2 and Ti@Ce oxide nanoparticles for the ultrafast removal of Cr(vi) from aqueous media." Nanoscale 10, no. 15 (2018): 7257–69. http://dx.doi.org/10.1039/c7nr09563e.

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Cerium oxide (CeO<sub>2</sub>), titanium oxide (TiO<sub>2</sub>) and titanium oxide impregnated with cerium oxide (Ti@Ce oxide) nanoparticles were synthesized using a simple one-pot surfactant-free method.

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Bai, Rui, Yunpeng Zhao, Cuiying Lu, et al. "Sonochemical synthesis and electrochemical performance of reduced graphene oxide/cerium dioxide nanocomposites." Journal of Chemical Research 47, no. 2 (2023): 174751982311587. http://dx.doi.org/10.1177/17475198231158745.

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Reduced graphene oxide/cerium dioxide (is synthesized by a simple sonochemical route. The morphology and chemical structure of the nanocomposites are characterized by scanning electron microscopy, energy disperse spectroscopy, insitu infrared spectroscopy, and X-ray diffraction. The electrochemical properties of a fabricat reduced graphene oxide/cerium dioxide2 nanocomposite electrode examined by cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy. The results indicate that the reduced graphene oxide can prevent the aggregation of cerium dioxide nanop

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Huang, Lirong, Minjie Huang, Junhua Du, Zhigang Liu, Wei Li, and Jiangbo Zhu. "Study on the Friction and Wear Properties of Multiple Rare-Earth-Oxide-Reinforced Resin-Based Friction Materials." Materials 17, no. 12 (2024): 2990. http://dx.doi.org/10.3390/ma17122990.

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Aiming to solve the problem of thermal decay of resin-based friction materials at high temperatures, rare-earth-lanthanum-oxide-/cerium-oxide-reinforced resin-based friction plates were prepared using a hot-pressing molding process. The effect of lanthanum/cerium oxide with different contents on the mechanical and tribological properties of the resin-based friction of materials was studied, and its mechanism was explored. The result shows that lanthanum/cerium oxide improves the mechanical and tribological properties of materials so that the coefficient of friction of the specimen is more stab

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Chibisov, Andrey N., Maxim A. Pugachevskii, Alexander P. Kuzmenko, Myo Min Than, and Alexey I. Kartsev. "Effect of morphology and size on the thermodynamic stability of cerium oxide nanoparticles: Experiment and molecular dynamics calculation." Nanotechnology Reviews 11, no. 1 (2022): 620–24. http://dx.doi.org/10.1515/ntrev-2022-0038.

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Abstract Cerium oxide nanoparticles have unique catalytic and oxygen storage capacity properties. In this work, the morphology and size of cerium oxide nanoparticles were experimentally and theoretically investigated. For the synthesis of nanoparticles, the laser ablation method was used. The analysis of the size and morphological characteristics of nanoparticles was performed using transmission electron microscopy. Using the method of molecular dynamics, we reveal the limiting dimensional transition from octahedral morphology to a spherical form in cerium oxide nanoparticles. The results obta

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Lavrynenko, O. M., O. Yu Pavlenko, M. N. Zahornyi, and S. F. Korichev. "Morphology, phase and chemical composition of the nanostructures formed in the systems containing lanthanum, cerium, and silver." Himia, Fizika ta Tehnologia Poverhni 12, no. 4 (2021): 382–92. http://dx.doi.org/10.15407/hftp12.04.382.

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X-ray phase and thermogravimetric analysis, scanning electron microscopy and energy-dispersion spectroscopy were used to study the products of phase formation during the precipitation of lanthanum and cerium salts in the presence of silver nitrate and recipients of precipitators, nucleating agents and hydrolysis regulators. Thermogravimetric analysis shows the completion of the La(OH)3 lattice dehydroxylation process at a temperature of ~ 300 °С and probable destruction of sulfates at a temperature of ~ 340 °С. The phase interaction of lanthanum oxide(III) with silver ends at T ~ 400 °C. The D

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Kızılkonca, Ezgi, and F. Bedia Erim. "Development of Anti-Aging and Anticorrosive Nanoceria Dispersed Alkyd Coating for Decorative and Industrial Purposes." Coatings 9, no. 10 (2019): 610. http://dx.doi.org/10.3390/coatings9100610.

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This study focuses on nano cerium oxide particles as alternative additives in solvent-based alkyd coatings in order to improve anticorrosive and anti-aging properties. The paint samples were formulated with cerium oxide micro and nanoparticles, and the coating quality characteristics were compared with coating formulated with commercial anticorrosive and UV-aging agents. Formulations were prepared with 3 wt % commercial anticorrosive agent as reference material (RP), 3 wt % cerium oxide microparticles (CER1), 3 wt % and 1% cerium oxide nanoparticles (CER2 and CER3), respectively. The basket mi

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Gunasekaran, Nithin Krisshna, Prathima Prabhu Tumkur, Nicole Nazario Bayon, et al. "Cerium Oxide Nanoparticles: Synthesis and Characterization Using Curcuma longa (Turmeric Rhizome)." Energy and Environment Focus 7, no. 1 (2023): 83–89. http://dx.doi.org/10.1166/eef.2023.1270.

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Cerium oxide and turmeric are widely used in the medical field because of their distinctive properties. Turmeric, predominantly used in Asian cuisines, is also an anti-inflammatory element in ayurvedic medicines. The lower bioavailability of turmeric rhizomes has restricted their medical applications to a specific limit, both in vitro and in vivo. Previous investigations have reported that the conjugation of curcumin and cerium oxide nanoparticles improves turmeric’s stability, making them efficient in treating chronic diseases such as cancer. The main objective of this study is to carry out t

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Lebedev Yu. A., Golubev O. V., Batukaev T. S., and Maximov A. L. "Decomposition of CO-=SUB=-2-=/SUB=- in a barrier discharge in the presence of cerium oxide catalysts." Technical Physics Letters 49, no. 5 (2023): 4. http://dx.doi.org/10.21883/tpl.2023.05.56015.19521.

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A number of catalysts based on cerium oxide have been synthesized to study the process of plasma-catalytic decomposition of CO2 in a barrier discharge. For the first time, an oxide catalyst MgCe-Al has been compared with samples containing in the composition only cerium oxide or magnesium oxide. It has been established that, in the presence of the MgCe-Al sample, the highest degree of the CO2 decomposition and highest energy efficiency get achieved. Keywords: barrier discharge, cerium oxide, low temperature plasma, catalyst, CO2 decomposition.

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Ortiz, E., L. Martínez-Gómez, J. F. Valdés-Galicia, R. García, M. Anzorena, and L. Martínez de la Escalera. "Skin protection against UV radiation using thin films of cerium oxide." Radioprotection 54, no. 1 (2019): 67–70. http://dx.doi.org/10.1051/radiopro/2019002.

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In this work, we evaluated the efficiency of cerium oxide as sunscreen using titanium oxide as standard comparison material. Geant4 software was used to perform numerical simulation, we calculated the radiation dose that ultraviolet radiation deposits in a skin sample as a function of thin film thickness of the sunscreens. We found that in the interval between 5 and 15 nm of the thin film thickness and for wavelengths between 160 and 400 nm, cerium oxide has the potential to reduce the radiation dose more than 10% with respect to the same thickness band of titanium oxide. Using thin films of c

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Bushell, Michael, Filip Kunc, Xiaomei Du, Andre Zborowski, Linda J. Johnston, and David C. Kennedy. "Characterization of Engineered Cerium Oxide Nanoparticles and Their Effects on Lung and Macrophage Cells." International Journal of Translational Medicine 2, no. 4 (2022): 522–36. http://dx.doi.org/10.3390/ijtm2040039.

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Cerium oxide nanoparticles are promising materials as novel nanoscale therapeutics and are commonly used materials in industrial processes. Most cytotoxicity studies on cerium oxide nanoparticles are made from in-lab prepared materials making comparison between studies challenging, especially when performed on unique cell lines under non-standard conditions. Using commercially available nanoparticles we show that particle stability/agglomeration may be critical in determining the cytotoxicity in some cell lines, while in other cell lines, larger sized primary particles are linked to higher cyt

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Brychka, S. Ya, and B. I. Bondarenko. "MAINTAINING STABLE NANODISPERSED CERIUM OXIDE FOR HEAT TRANSFER PROCESSES." Energy Technologies & Resource Saving, no. 2 (June 20, 2020): 36–42. http://dx.doi.org/10.33070/etars.2.2020.05.

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The introduction of heat carriers progressive types causes the productivity of heat exchange systems to increase. One of the challenges in thermal applied applications is the search for heat carriers that will provide revolutionary indicators of thermal conductivity and stability over time, thereby increasing the order of the heat transfer processes efficiency magnitude. The paper describes the creation of stable colloidal solutions using cerium oxide and organic stabilizers to provide better heat exchange performance compared to true solutions. Cerium oxide colloids were obtained by precipita

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Kim, Suhwan, Minho Choi, and Jongsung Park. "Cerium-Doped Oxide-Based Materials for Energy and Environmental Applications." Crystals 13, no. 12 (2023): 1631. http://dx.doi.org/10.3390/cryst13121631.

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Cerium is a rare-earth metal commonly used as a dopant in various metal oxides to enhance their performances or provide optoelectronic properties. Cerium oxide (ceria) is particularly valuable owing to its unique properties and applications in various fields, such as biomedical research, photovoltaics, and industrial catalytic processes. This review focuses on the use of cerium and ceria doping in the synthesis of SiO2 and ZnO. Studies have shown that Ce-doped SiO2 thin films exhibit luminescence properties and proton shielding capabilities, and that Ce-doped ZnO has potential applications in

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Bêche, Eric, Patrice Charvin, Danielle Perarnau, Stéphane Abanades, and Gilles Flamant. "Ce 3d XPS investigation of cerium oxides and mixed cerium oxide (CexTiyOz)." Surface and Interface Analysis 40, no. 3-4 (2008): 264–67. http://dx.doi.org/10.1002/sia.2686.

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Jiang, Bingchun, Yanglang Gu, Yuncai Zhao, Yaoping Zou, Shaochen Wan, and Tong Zhang. "Tribological Properties and Wear Mechanism of Phenolic Resin Incorporated Rare Earth Oxides." Coatings 14, no. 12 (2024): 1530. https://doi.org/10.3390/coatings14121530.

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Different proportions of rare earth oxides, specifically cerium oxide and yttrium oxide, were incorporated into phenolic resin-based friction materials to mitigate the thermal degradation of resin-based friction materials. The effects of these additives on the mechanical properties and tribological performance of resin-based friction materials were thoroughly investigated, and the microstructure and phase composition were characterized via field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). The addition of rare earth ox

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Gatea, Hamed Alwan. "Influence of Sintering Temperature on the Structural and Electrical Properties of CeO<sub>2</sub> Nanoparticles Prepared by Hydrothermal Method." Materials Science Forum 1084 (April 13, 2023): 15–21. http://dx.doi.org/10.4028/p-7dxj8o.

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Cerium oxide, also known as CeO2, can be synthesized by the hydrothermal process with cerium nitrate precursor solution. After drying and sintering at 800,900, and 1100 C, different-sized cerium oxide nanoparticles were produced from the solution. Using x-ray diffractometers, the researchers were able to determine that all of the cerium oxide nanoparticles have a unique structure called fluorite crystalline structures. The structural, morphological and optical properties of films were investigated by a set of characterization techniques such as X-ray diffraction (XRD) and scanning electron mic

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Lakshmi, R. V., Parthasarathi Bera, Kamalesh Pal, et al. "Effect of Cerium Oxide Nanostructures on CO Oxidation." Journal of Nanoscience and Nanotechnology 21, no. 3 (2021): 1641–52. http://dx.doi.org/10.1166/jnn.2021.18988.

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Cerium oxide particles with different morphologies, namely nanoparticles, nanofibers, nanocubes, and rice grains have been prepared by simple chemical routes. The shape and size of the synthesized morphologies have been studied using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). X-ray diffraction (XRD) and selected area electron diffraction (SAED) techniques have been used to determine their crystal phases. Both nanoparticles and nanocubes of cerium oxide exclusively crystallize in fluorite structure of CeO2 as observed in XRD patterns, whereas

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GALLAGHER, SARAH ANN, and WOLFGANG RUDOLPH DWORZAK. "Thermodynamic Properties of Cerium Oxalate and Cerium Oxide." Journal of the American Ceramic Society 68, no. 8 (1985): C—206—C—207. http://dx.doi.org/10.1111/j.1151-2916.1985.tb10185.x.

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Tang, C. C., Y. Bando, B. D. Liu, and D. Golberg. "Cerium Oxide Nanotubes Prepared from Cerium Hydroxide Nanotubes." Advanced Materials 17, no. 24 (2005): 3005–9. http://dx.doi.org/10.1002/adma.200501557.

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Pugachevskii, M. A., V. A. Mamontov, A. A. Kryukov, S. A. Dodonova, E. B. Artyushkova, and V. A. Pikkiev. "Protective Properties of Ablated Cerium Oxide Nanoparticles for Cell Cultures under Conditions of Oxidative Stress under Ultraviolet and Ionizing Irradiation." Proceedings of the Southwest State University. Series: Engineering and Technology 13, no. 4 (2024): 139–51. http://dx.doi.org/10.21869/2223-1528-2023-13-4-139-151.

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Purpose. Study of the protective properties of ablated cerium oxide nanoparticles for cell cultures in an oxidative reaction under ultraviolet and ionizing irradiation.Methods. Cerium dioxide nanoparticles with high antioxidant activity were obtained using laser ablation. Atomic force microscopy was used to characterize ablated cerium dioxide nanoparticles and cells incubated with cerium dioxide nanoparticles. The protective properties of cerium dioxide nanoparticles were studied after 0 (without incubation), 6and 24-hour incubation using the colorimetric MTT test method.Results. Using laser a

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Castano, Carlos E., Matthew J. O’Keefe, and William G. Fahrenholtz. "Cerium-based oxide coatings." Current Opinion in Solid State and Materials Science 19, no. 2 (2015): 69–76. http://dx.doi.org/10.1016/j.cossms.2014.11.005.

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Azar, Pedram Bagherzadeh, Hossein Tavanai, and Ali Reza Allafchian. "Electrosprayed Cerium Oxide Nanoparticles." Journal of Electronic Materials 47, no. 7 (2018): 3779–87. http://dx.doi.org/10.1007/s11664-018-6246-1.

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Kobayashi, Makoto, and Maria Flytzani-Stephanopoulos. "Reduction and Sulfidation Kinetics of Cerium Oxide and Cu-Modified Cerium Oxide." Industrial & Engineering Chemistry Research 41, no. 13 (2002): 3115–23. http://dx.doi.org/10.1021/ie010815w.

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Guo, Leyang, and Junwu Guo. "Study on the Catalytic Activity Modification of Pr and Nd Doped Ce_0.7Zr_0.3O₂ Catalysts for Simultaneous Removal of PM and NO_X." Science of Advanced Materials 16, no. 7 (2024): 821–28. http://dx.doi.org/10.1166/sam.2024.4679.

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Cerium-zirconium composite oxides (Ce0.7Zr0.3O2) have a remarkable effect on catalytic removal of carbon particles (PM) and nitrogen oxides (NOX) emitted from diesel engine, in order to further improve the thermal stability, oxygen storage capacity and low temperature catalytic REDOX performance of cerium zirconium composite oxides (Ce0.7Zr0.3O2), a small amount of Pr and Nd rare earth elements are doped to improve the catalytic activity of cerium zirconium composite oxides. In this paper, the composite oxide of Pr6O11–Nd2O3–CeO2–ZrO2 is prepared by unsteady co-precipitation method, and the ph

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