cerium oxide


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cerium oxide 

A pink powder derived from the metallic element cerium. It is used to polish lenses and it is also added to ophthalmic glass to absorb ultraviolet radiations. See polishing.
References in periodicals archive ?
Interactions between amide and carboxylic acid groups and the Lewis acid groups of the cerium oxide may also intervene and deferral the depolymerization.
The delivery of these final cerium oxide products marks the conclusion of the six month Solvent Extraction Pilot Plant operation at ANSTO Minerals test facility near Sydney.
By contrast, cerium oxide stunted plant growth at all concentrations, "but most dramatically at the lowest level used," Holden says.
The Hertfordshire firm said the soaring price of cerium oxide - used in the oxygen storage part of petrol filters - could hit its catalysts business by pounds 15m to pounds 20m this year, up from pounds 5m last year.
Among specific topics are influences of surface chemistry on the dehydrogenation kinetics of ammonia borane in porous carbon scaffolds, the synthesis and photocatalytic performance of hierarchical porous titanium phosphonate hybrid materials, the catalytic activity of sulfated zirconia promoted with cerium oxide, basic ion exchange resins as heterogeneous catalysts for biodiesel synthesis, and a novel non-metal oxygen reduction electrocatalyst based on platelet carbon nanofiber.
While Shorox abrasives are made from cerium oxide produced in China, the Chinese Government has drastically cut the issuance of export permits for all rare earth raw materials.
Currently, most of the range of materials used to make nano ingredients--like carbon, silver, iron, titanium dioxide, aluminum oxide, cerium oxide, zinc oxide, silicas, silicon dioxide, dendimers and nano clay--can be included, although not necessarily efficiently at the moment, in ink and coating formulations for printing.
The Syngas generation process makes use of a two-chambered system, cerium oxide rotating rings as well as a parabolic mirror having the capability to heat the system s inner chamber to a temperature of about 1,500 C.
Dr McCall is coordinating the Australian consortium, testing zinc oxide, cerium oxide and silver nanoparticles.
The University of Ulster experts will be specifically looking at nanoparticles present in chemicals found in sunscreens and an additive in some diesel fuels - titanium dioxide and cerium oxide - and their connection to Alzheimer's and Parkinson's diseases.
Several commercial grades of zinc and cerium oxide had only, at most, a very small photodegradative effect (increasing the mass loss rate by no more than about 10 mg/1000 hr exposure for a 54 [cm.