Results 21 to 30 of about 15,328 (167)

OPTIMIZING ENGINE PERFORMANCE & EMISSIONS WITH CEO2NANOPARTICLES IN DIESEL FUEL: VIA RESPONSE SURFACE METHOD

open access: yesCT&F Ciencia, Tecnología & Futuro, 2023
The response section method (RSM) determines the effectiveness of the data transfer at different load conditions of the engine to minimize and amplify emissions.
Abdullah Burak Arslan, Mehmet Çelik
doaj   +1 more source

Effect of CeO2 on TiC Morphology in Ni-Based Composite Coating

open access: yesHigh Temperature Materials and Processes, 2018
The TiC/Ni composite coating with different content of CeO2 was fabricated on the Cr12MoV steel by laser cladding. The microstructure of cladding layers with the different content of CeO2 from the bottom to the surface is columnar crystal, cellular ...
Cai Yangchuan, Luo Zhen, Chen Yao
doaj   +1 more source

Reaction of carboxylic acids on CeO2(111) and CeO2(100)

open access: yesCatalysis Today, 1996
The reactions of HCOOH and CH3COOH on CeO2(111) and CeO2(100) were studied using temperature programmed desorption (TPD) and high resolution electron energy loss spectroscopy (HREELS). The carboxylic acids were found to dissociate on both surfaces to form carboxylates.
J. Stubenrauch, E. Brosha, J.M. Vohs
openaire   +1 more source

Synthesis and Applications of Polymorphic CeO2 and AgI/CeO2 Nanocomposites

open access: yesJournal of Materials Science: Materials in Engineering
Abstract This paper delves into the innovative synthesis of various morphologies of CeO₂, including flower-like, spherical, quasi-spherical, and rod-shaped, as well as AgI/CeO₂ composites. Utilizing cold coprecipitation and one-pot hydrothermal methods, a range of CeO₂ and highly efficient photocatalytic AgI/CeO₂ composites were successfully ...
Yan Zhao   +5 more
openaire   +2 more sources

Gold catalysts supported on CeO2 and CeO2–Al2O3 for NO reduction by CO

open access: yesApplied Catalysis B: Environmental, 2006
The reduction of NOx by CO was studied over gold catalyst supported on ceria and ceria-alumina. The mixed supports with different CeO2/ Al2O3 ratios were prepared by co-precipitation. The catalysts were characterized by means of XRD, TPR, XPS and Raman spectroscopy.
L Illieva   +4 more
openaire   +3 more sources

CeO2-TiO2 Photocatalyst: Ionic Liquid-Mediated Synthesis, Characterization, and Performance for Diisopropanolamine Visible Light Degradation

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2018
CeO2-TiO2 photocatalyst with Ce:Ti molar ratio of 1:9 was synthesized via co-precipitation method in the presence of 1-ethyl-3-methyl imidazolium octylsulfate, [EMIM][OctSO4] (CeO2-TiO2-IL). The ionic liquid acts as a templating agent for particle growth.
Jagath Retchahan Sivalingam   +2 more
doaj   +1 more source

CeO2–Al2O3, CeO2–SiO2, CeO2–TiO2 core-shell spheres: formation mechanisms and UV absorption

open access: yesRSC Advances, 2012
In this work, a general colloid synthesis method for CeO2–Al2O3, CeO2–SiO2, and CeO2–TiO2 core-shell spheres was reported. The properties of these CeO2-based composites were greatly dependent on the additive species. A diffusion-controlled kinetic model was applied to explore the morphology and crystallinity evolution of these core-shell spheres.
Qing Fang, Xin Liang
openaire   +1 more source

Effect of double-sided polishing on surface morphology of quartz mask blanks

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesAs the critical dimensions in integrated circuit structures continue to shrink, transistor density and chip performance keep improving. At the same time, the continuous evolution of integrated circuit manufacturing processes increasingly ...
Cheng ZHANG, Rui QIN, Jihao BAI
doaj   +1 more source

Immobilized CeO2 for adsorption of azo dye

open access: yesJournal of Experimental Nanoscience, 2019
Azo dyes are not efficiently removed in water treatment. So the development of excellent absorbent is significant important for environmental protection.
Shulin Kong   +3 more
doaj   +1 more source

Precipitation Synthesis of CeO2 Nanopowder Pigment

open access: yesJurnal Rekayasa Kimia & Lingkungan, 2023
Nanopowder pigments of CeO2 and CeO2:Fe were synthesized by precipitation method at a moderate calcination temperature of 500oC.  The pigments exhibited pale yellow for CeO2 nanopowder and brick red for CeO2:Fe nanopowder.
Iis Nurhasanah   +2 more
doaj   +1 more source

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