Effects of cerium on the hydrogen absorption-desorption …
The influence of Ce addition on the phase constitution, microstructure, hydrogen absorption/desorption properties and battery performances of newly developed rare earth …
Melting Efficiently Rare Earth Steel by Whole Scrap Steel
In this work, it was proposed for Si–Mn deoxidation, Al-enhancing deoxidation, and rare earth Ce alloying based on high alkalinity refining slag to produce 7CrSiMnVMo rare earth steel with whole scrap steel. (1) With Si–Mn deoxygenation, the main inclusions are high Ca–Al–Mg–O and high Al–Ca–Mg–O composite inclusions.
Effects of cerium on the hydrogen absorption-desorption …
The influence of Ce addition on the phase constitution, microstructure, hydrogen absorption/desorption properties and battery performances of newly developed …
(PDF) Rare earth cerium doping effects in nonlinear optical materials: Potassium hydrogen phthalate (KHP…
Rare earth cerium doping effects in nonlinear optical materials: Potassium hydrogen phthalate (KHP) and tris (thiourea)zinc(II) sulfate (ZTS) January 2010 CrystEngComm 12(2) DOI:10.1039/b907513e ...
Effect of Rare Earth Cerium Content on Manganese Sulfide in …
Abstract: To study the effect of Ce on the morphology of manganese sulfide, we added different contents of Ce into U75V heavy rail steel. The composition and morphology of sulfide in steel were analyzed. The inclusions'' number, size, and aspect ratio were analyzed by automatic scanning electron microscope ASPEX.
Properties of the ruthenium (0001)/cerium-hydrogen interface: a …
Properties of the ruthenium (0001)/cerium-hydrogen interface: a model system for transition-metal/rare-earth hydride catalysts. Andrew P. Walker. and. Richard …
Rare Earth Cerium Increases the Corrosion Resistance of NdFeB Magnets …
An increase in the Ce content from 0 to 5.21 wt%, decreased the potential difference between the main phase and (Nd, Ce)-rich phase from 350.2 mV to 97.7 mV; therefore, the corrosion resistance of the magnetic materials increased. The corrosion resistance constituted the Nd-rich phase < the void < metal matrix. Moreover, based on …
Insight into anomalous hydrogen adsorption on rare …
In this article, by density functional theory studies, we show how a rare earth metal, cerium, binds with hydrogen when decorated over a heteropolar 2D material, hexagonal boron nitride. Each cerium adatom is …
Effect of rare earth element cerium on preparation of tungsten …
The hydrogen reduction of Ce doped tungsten powders was basically accomplished at 800 °C for 3 h. The size of Ce doped W powders was remarkably decreased compared to the undoped W powders. The phase of Ce 4 W 9 O 33 was reduced to Ce 2 (WO 4) 3 phase and Ce 2 W 2 O 9 phase during the process of hydrogen …
Research Progress of Rare Earth-Based Hydrogen Storage Alloys
Rare earth-based hydrogen storage alloys are promising hydrogen storage medium and have been widely used as anode materials for commercial Ni/MH …
Effects of cerium on the hydrogen absorption-desorption …
Effects of substitutions of rare earth (RE) elements (Y, La, Ce, and Nd) to the Zr-based AB2 multi-phase metal hydride (MH) alloys on the structure, gaseous phase …
Rare earth metal as a dopant element: Cerium ion as an …
This study highlights introducing the rare earth metal cerium (Ce(IV)) into the structure of magnetite (Fe 3 O 4) to achieve enhanced adsorptive properties for the removal of chromium (Cr(VI)) from an aqueous medium.Different ratios of Ce(IV) were introduced into the iron oxide matrix, termed FeCe-5, FeCe-10, and FeCe-20. ...
Hydrogen evolution reaction on Ni RE (RE=rare earth) crystalline …
Cerium as a representative of rare earth elements occupies a special place among these doping components. It is known that alloys of nickel with rare earth metals are characterized by improved ...
Effects of cerium on the hydrogen absorption-desorption …
Rare earth (RE)-Ni hydrogen-absorbing alloys with the CaCu 5 (AB 5-type) structure have been used as negative electrode materials in commercial Ni-metal hydride …
Enhanced Hydrogen-Storage Properties of MgH2 Catalyzed via a …
Nevertheless, doping with few light rare earth lanthanum (La) or cerium (Ce) could make the V-based BCC alloy easier to activate and cause faster absorption of …
Promotion effect of the rare earth metals (cerium, lanthanum, and …
Catalytic methane decomposition is an economical and green procedure to procreate CO x-free hydrogen as a renewable energy source.This paper describes the mesoporous high surface area Ni/Al 2 O 3 catalysts enhanced with the rare earth metals (cerium, lanthanum, and yttrium) fabricated via neoteric one-pot hydrothermal strategy, and the co-catalysts …
(PDF) The Influence of Cerium on the Hydrogen …
The costly lanthanum in LaNi 5 can thus be replaced by cheaper rare earth elements such as Ce [59], or by a cheaper rare earth mixture called mischmetal (Mm) consisting of La, Ce, Pr and...
Cerium Removal from a Mixed Rare Earth Sulfate Solution by Oxidation with Hydrogen …
This work focused on cerium removal from a synthetic mixed REE sulfate solution representing an H2SO4 leach solution. Oxidation of Ce(III) was achieved with hydrogen peroxide (H2O2), followed by precipitation as Ce(OH)4 under controlled pH and redox conditions. Batch tests revealed Ce removal levels between 50% and 90%, and REE …
(PDF) The Influence of Cerium on the Hydrogen Storage Properties of La1 …
The Influence of Cerium on the Hydrogen Storage Properties of La1-xCexNi5 Alloys March 2020 ... [59], or by a cheaper rare earth mixture called mischmetal (Mm) consisting of La, Ce, Pr and Nd [60 ...
