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General
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Cerium(IV)
oxide, ceric oxide, ceria, or sometimes simply cerium oxide or cerium
dioxide, is a pale yellow-white powder, CeO2. It is used in ceramics, to
polish glass, and to sensitize photosensitive glass.
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Ceria is used
in the walls of self-cleaning ovens as a hydrocarbon catalyst during the
high-temperature cleaning process.
Process
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Nanoparticles
of cerium oxide with a narrow size distribution (615%) are prepared by
mixing cerium nitrate solution with an ammonium reagent.
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CeO2 powder
has been prepared and used to decrease the sintering temperature from 1500
°C to 1200 °C.
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Ultra fine
cerium oxide (ceria, CeO2) powder was synthesized by a thermochemical
process and tested for its feasibility as an oxygen gas sensor. Procedures
of the process consisted of the preparation of a precursor powder by spray
drying a ceriumnitrate solution and the heat treatment in air to evaporate
volatile components from the precursor, thereby forming nanostructured
CeO2.
Uses
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Bulk cerium
oxide is an excellent catalyst for redox reactions and is used as an
important additive in the three-way catalyst (TWC) for automotive exhaust
gas treatment.
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CeO2
nanoparticles protect against the progression of cardiac dysfunction and
remodeling by attenuation of myocardial oxidative stress, ER stress, and
inflammatory processes probably through their autoregenerative antioxidant
properties.
Report
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In U.S. and
in the countries of Europe and Asia to provide worldwide patent protection
and to differentiate unique technology of the recently-developed CMP
slurry based on self-activated cerium oxide particles.
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Extensive
Research and Development has led to the launch of a new soft-settling,
premium grade, Cerium Oxide polish, Unicer 636, which can enhance
productivity while cutting machine maintenance downtime, and reducing the
possibility of 'sleeking'.
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