Journal ArticleDOI
Controllable synthesis and optical properties of nano-CeO2 via a facile hydrothermal route
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TLDR
In this article, the authors used ethanol/water mixtures with varied volume ratios from 0:1 to 1:0 in a facile hydrothermal process with CeCl 3 ⋅7H 2 O as cerium source and N 2 H 4 ⋆H 2O as mineralizer to control the morphology change from thin nanorod to short-thick nanorods, and then to nanoparticles.About:
This article is published in Journal of Alloys and Compounds.The article was published on 2013-04-15. It has received 145 citations till now. The article focuses on the topics: Nanorod & Hydrothermal circulation.read more
Citations
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Journal ArticleDOI
Defect-Induced Band Gap Narrowed CeO2 Nanostructures for Visible Light Activities
Mohammad Mansoob Khan,Sajid Ali Ansari,Debabrata Pradhan,Do Hung Han,Jintae Lee,Moo Hwan Cho +5 more
TL;DR: In this article, an electron beam irradiation (30 kGy and 90 kGy) approach was used to narrow the band gap of the pristine CeO2 nanostructure (p-CeO2) to enhance their visible light activity through defect engineering.
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Band gap engineering of CeO2 nanostructure using an electrochemically active biofilm for visible light applications
Sajid Ali Ansari,Mohammad Mansoob Khan,Mohd Omaish Ansari,Shafeer Kalathil,Jintae Lee,Moo Hwan Cho +5 more
TL;DR: In this article, a defect-induced band gap narrowing using an electrochemically active biofilm (EAB) was proposed to enhance the visible light photocatalytic activity of pure cerium oxide (CeO2) nanostructures.
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Fabrication of CeO2/Fe2O3 composite nanospindles for enhanced visible light driven photocatalysts and supercapacitor electrodes
N. Sabari Arul,N. Sabari Arul,D. Mangalaraj,Rajendran Ramachandran,A. Nirmala Grace,Jeong In Han +5 more
TL;DR: In this paper, a hybrid composite nanospindles (CNSs) with enhanced visible light-driven photocatalytic activity and good supercapacitive cycling stability has been designed for use in wastewater treatment and energy storage applications.
Journal ArticleDOI
Ultra-high sensitive and selective H 2 gas sensor manifested by interface of n–n heterostructure of CeO 2 -SnO 2 nanoparticles
David E. Motaung,David E. Motaung,Gugu H. Mhlongo,Gugu H. Mhlongo,Peter R. Makgwane,Baban P. Dhonge,Franscious Cummings,Hendrik C. Swart,Suprakas Sinha Ray,Suprakas Sinha Ray +9 more
TL;DR: In this paper, the authors reported on the ultra-high sensitive and selective hydrogen gas sensing using CeO2-SnO2 mixed oxide heterostructure synthesized by a simple hydrothermal method.
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Surface oxygen vacancy assisted electron transfer and shuttling for enhanced photocatalytic activity of a Z-scheme CeO2–AgI nanocomposite
TL;DR: In this article, the surface oxygen vacancies were formed on the synthesized CeO2-AgI photocatalyst, as determined by X-ray photoelectron spectroscopy, which could extend the lifetime of the charge carriers and enhance the photocatalytic activity of these catalysts for rhodamine B (RhB) dye degradation.
References
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Raman and x‐ray studies of Ce1−xRExO2−y, where RE=La, Pr, Nd, Eu, Gd, and Tb
TL;DR: In this article, X-ray diffraction and Raman scattering are used to analyze the Raman spectrum of CeO2 and find that the single allowed Raman mode shifts to lower frequency with increasing doping level for all the rare earths.
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Size dependency variation in lattice parameter and valency states in nanocrystalline cerium oxide
TL;DR: In this article, a correlation between the particle size and the lattice parameter has been established in nanocerium oxide particles (3-30nm) and the variation in lattice parameters is attributed to lattice strain induced by the introduction of Ce3+ due to the formation of oxygen vacancies.
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Size-dependent properties of CeO 2-y nanoparticles as studied by Raman scattering
TL;DR: In this paper, the combined effects of strain and phonon confinement are seen to explain why the Raman peak near $464{cm} in nanoparticles shifts to progressively lower energies and the lineshape of this feature gets progressively broader and asymmetric as the particle size gets smaller.
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Raman study of CeO2: Second-order scattering, lattice dynamics, and particle-size effects.
TL;DR: It is shown using the calculated dispersion curves that this particle-size effect cannot be explained with the spatial-correlation model.
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Kinetic equations and time correlation functions of critical fluctuations.
Kyozi Kawasaki,Kyozi Kawasaki +1 more
TL;DR: In this paper, the Boltzmann equation of dilute gases was derived with the aid of a generalized Langevin equation due to Mori, which was then used to obtain selfconsistent closed equations to determine time correlation functions of critical fluctuations.