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Latest Cerium(IV) oxide Stories

How To Make More Efficient Fuel Cells
2014-07-10 03:09:31

By Glen Martin, Stanford School of Engineering Using high-brilliance X-rays, researchers track the process that fuel cells use to produce electricity, knowledge that will help make large-scale alternative energy power systems more practical and reliable Solar power and other sources of renewable energy can help combat global warming but they have a drawback: they don't produce energy as predictably as plants powered by oil, coal or natural gas. Solar panels only produce electricity...

X-rays Reveal Unexpected Property Of Widely Used Nanoparticles
2013-11-12 15:02:07

European Synchrotron Radiation Facility A new chapter has been opened in our understanding of the chemical activity of nanoparticles says a team of international scientists. Using the X-ray beams of the European Synchrotron ESRF they showed that the electrons absorbed and released by cerium dioxide nanoparticles during chemical reactions behave in a completely different way than previously thought: the electrons are not bound to individual atoms but, like a cloud, distribute themselves...

2013-10-16 09:08:08

Common catalyst cerium oxide opens door to nanochemistry for medicine Scientists at Rice University are enhancing the natural antioxidant properties of an element found in a car’s catalytic converter to make it useful for medical applications. Rice chemist Vicki Colvin led a team that created small, uniform spheres of cerium oxide and gave them a thin coating of fatty oleic acid to make them biocompatible. The researchers say their discovery has the potential to help treat traumatic...

Coveted Nanocrystal Process Simplified
2013-06-25 12:29:07

Helmholtz-Zentrum Dresden-Rossendorf A formation mechanism of nanocrystalline cerium dioxide (CeO2), a versatile nanomaterial, has been unveiled by scientists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and the University of New South Wales in Sydney, Australia. The research results were published in the scientific journal Chemistry – A European Journal. This finding potentially simplifies and alleviates the existing synthetic processes of nanocrystalline CeO2 production....

2013-02-06 16:11:20

Two of the most widely used nanoparticles (NPs) accumulate in soybeans – second only to corn as a key food crop in the United States – in ways previously shown to have the potential to adversely affect the crop yields and nutritional quality, a new study has found. It appears in the journal ACS Nano. Jorge L. Gardea-Torresdey and colleagues cite rapid increases in commercial and industrial uses of NPs, the building blocks of a nanotechnology industry projected to put $1...

2013-02-06 13:00:54

Metals contained in nanoparticles can enter into the food chain Scientists have, for the first time, traced the nanoparticles taken up from the soil by crop plants and analyzed the chemical states of their metallic elements. Zinc was shown to dissolve and accumulate throughout the plants, whereas the element cerium did not dissolve into plant tissue. The results contribute to the controversial debate on plant toxicity of nanoparticles and whether engineered nanoparticles can enter into the...

Effects Of Manufactured Nanoparticles On Soybean Crops Examined By Scientists
2012-08-20 15:38:54

Sunscreens, lotions, and cosmetics contain tiny metal nanoparticles that wash down the drain at the end of the day, or are discharged after manufacturing. Those nanoparticles eventually end up in agricultural soil, which is a cause for concern, according to a group of environmental scientists that recently carried out the first major study of soybeans grown in soil contaminated by two manufactured nanomaterials (MNMs). The team was led by scientists at UC Santa Barbara's Bren School of...

A Cheaper and Cleaner Catalyst for Burning Methane
2012-08-10 12:57:48

April Flowers for redOrbit.com - Your Universe Online Natural gas has become an increasingly important energy source as the world's accessible oil reserves are depleted. The primary component of natural gas is methane, which releases less carbon dioxide than many other hydrocarbon fuels. However, because the methane molecule is so stable, the energy within can't always be accessed, and escaping unburned methane is a greenhouse gas twenty times more powerful than carbon dioxide. This...

2011-11-18 02:45:31

Recent studies conducted at Marshall University have demonstrated that nanoparticles of cerium oxide–common diesel fuel additives used to increase the fuel efficiency of automobile engines–can travel from the lungs to the liver and that this process is associated with liver damage. The data in the study by Dr. Eric R. Blough and his colleagues at Marshall´s Center for Diagnostic Nanosystems indicate there is a dose-dependent increase in the concentration of cerium in the...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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