scholarly journals CoPt hard magnetic nanoparticle films synthesized by high temperature chemical reduction

2003 ◽  
Vol 93 (10) ◽  
pp. 7571-7573 ◽  
Author(s):  
Y. Sui ◽  
L. Yue ◽  
R. Skomski ◽  
X. Z. Li ◽  
J. Zhou ◽  
...  
Keyword(s):  
High Temperature ◽  
Magnetic Nanoparticle ◽  
Chemical Reduction ◽  
Nanoparticle Films

scholarly journals Aligned Fe3O4 magnetic nanoparticle films by magneto-electrospray method

RSC Advances ◽  
2017 ◽  
Vol 7 (64) ◽  
pp. 40124-40130 ◽  
Author(s):  
Christina W. Kartikowati ◽  
Qing Li ◽  
Shinji Horie ◽  
Takashi Ogi ◽  
Toru Iwaki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Nanoparticle ◽  
Film Deposition ◽  
Nanoparticle Films ◽  
P Application ◽  
Fe3o4 Magnetic Nanoparticle

Application of magnetic field during film deposition by electrospray enhances the magnetic performances of the film. This enhancement increased as the diameter of the constituent nanoparticles increased.

Chemical and mineralogical changes during basalt-seawater interaction: Site 223, Leg 23, D.S.D.P., north-west Indian Ocean

1981 ◽  
Vol 44 (334) ◽  
pp. 141-146 ◽  
Author(s):  
C. Th. Papavassiliou ◽  
M. E. Cosgrove
Keyword(s):  
Trace Elements ◽  
High Temperature ◽  
Chemical Reduction ◽  
Temperature Changes ◽  
Interaction Site ◽  
North West ◽  
Dioctahedral Smectite ◽  
West Indian Ocean ◽  
Mixed Layers ◽  
Trioctahedral Smectite

AbstractThe development of low- and hightemperature alteration products in a 23 m section of ocean-floor basalts is described. Analcime, calcite and dioctahedral smectite are ubiquitous. Trioctahedral smectite, smectite-chlorite mixed layers, chabazite and scolecite occur in the deeper sections with Fe3+ oxides/hydroxides progressively becoming more abundant in the upper regions. The upper layers of the sequence show marked chemical reduction. High-temperature chemical changes include Na and Mg enrichment accompanied by Ca and Fe2+ losses. Superimposed low temperature changes include gains in Fe3+ K, Li, and Rb, and losses in Na, Ca, and Fe2+ Many trace elements also show consistent behaviour.

scholarly journals Synthesis of high magnetization Fe and FeCo nanoparticles by high temperature chemical reduction

2015 ◽  
Vol 378 ◽  
pp. 535-538 ◽  
Author(s):  
Binil Kandapallil ◽  
Robert E. Colborn ◽  
Peter J. Bonitatibus ◽  
Francis Johnson
Keyword(s):  
High Temperature ◽  
Chemical Reduction ◽  
Feco Nanoparticles

scholarly journals On the formation of uranium(V) species in alkali chloride melts

2010 ◽  
Vol 82 (8) ◽  
pp. 1701-1717 ◽  
Author(s):  
Vladimir A. Volkovich ◽  
Denis E. Aleksandrov ◽  
Trevor R. Griffiths ◽  
Boris D. Vasin ◽  
Timur K. Khabibullin ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
High Temperature ◽  
Uranium Dioxide ◽  
Chemical Reduction ◽  
Inert Gas ◽  
Alkali Chloride ◽  
Reduced Pressure ◽  
Chloride Melts ◽  
C Decomposition ◽  
Gas Bubbling

Uranyl(V) species are normally unstable in solutions but are here shown to be stable in high-temperature chloride melts. Reactions leading to the formation of UO2Cl43– ions were studied, including thermal decomposition and chemical reduction of uranyl(VI) chloro-species in various alkali chloride melts (LiCl, 3LiCl–2KCl, NaCl–KCl, and NaCl–2CsCl) at 550–850 °C. Decomposition of UO2Cl42– species under reduced pressure, with inert gas bubbling through the melt or using zirconium getter in the atmosphere results in the formation of UO2Cl43– and UO2. Elemental tellurium, palladium, silver, molybdenum, niobium, zirconium, and hydrogen, as well as niobium and zirconium ions were tested as the reducing agents. The outcome of the reaction depends on the reductant used and its electrochemical properties: uranyl(VI) species can be reduced to uranyl(V) and uranium(IV) ions, and to uranium dioxide.

Sign in / Sign up

Export Citation Format

Share Document