News tagged with manganese
Researchers resolve controversy over gallium manganese arsenide that could boost spintronic performance
A long-standing controversy regarding the semiconductor gallium manganese arsenide, one of the most promising materials for spintronic technology, looks to have been resolved. Researchers with the Lawrence ...
Feb 27, 2012 |
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Israeli wins chemistry Nobel for quasicrystals (Update 3)
Israeli scientist Dan Shechtman was awarded the Nobel Prize in chemistry on Wednesday for a discovery that faced skepticism and mockery, even prompting his expulsion from his U.S. research team, before it ...
Oct 05, 2011 |
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At small scales, tug-of-war between electrons can lead to magnetism under surprising circumstances
(PhysOrg.com) -- At the smallest scales, magnetism may not work quite the way scientists expected, according to a recent paper in Physical Review Letters by Rafal Oszwaldowski and Igor Zutic of the Univer ...
Jun 29, 2011 |
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The heat is on for sodium-manganese oxide rechargeable batteries
(PhysOrg.com) -- By adding the right amount of heat, researchers have developed a method that improves the electrical capacity and recharging lifetime of sodium ion rechargeable batteries, which could be a ...
Nanotechnology / Nanomaterials
Jun 07, 2011 |
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Semiconductor could turn heat into computing power
(PhysOrg.com) -- Computers might one day recycle part of their own waste heat, using a material being studied by researchers at Ohio State University.
Sep 27, 2010 |
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Physicists capture first images of atomic spin
(PhysOrg.com) -- Though scientists argue that the emerging technology of spintronics may trump conventional electronics for building the next generation of faster, smaller, more efficient computers and high-tech ...
Apr 26, 2010 |
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Accidental discovery produces durable new blue pigment for multiple applications
An accidental discovery in a laboratory at Oregon State University has apparently solved a quest that over thousands of years has absorbed the energies of ancient Egyptians, the Han dynasty in China, Mayan ...
Nov 16, 2009 |
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Methane-eating microbes can use iron and manganese oxides to 'breathe'
Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according to a team of researchers ...
Space & Earth / Earth Sciences
Jul 09, 2009 |
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Study finds link between Parkinson's disease genes and manganese poisoning
A connection between genetic and environmental causes of Parkinson's disease has been discovered by a research team led by Aaron D. Gitler, PhD, Assistant Professor in the Department of Cell and Developmental ...
Feb 01, 2009 |
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Saving data in vortex structures: New physical phenomenon could drastically reduce computer energy consumption
A new phenomenon might make computing devices faster, smaller and much more energy-efficient. Moving so-called skyrmions needs 100,000 times smaller currents than existing technologies and the number of atoms ...
Feb 21, 2012 |
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A manganite changes its stripes
If there were a Hall of Fame for materials, manganites would be among its members. Some manganites, compounds of manganese oxides, are renowned for colossal magnetoresistance – the ability to suddenly ...
Jul 15, 2011 |
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Structural origin of 'hidden state' in manganite thin film revealed by picosecond time-resolved X-ray diffraction
Photo-induced phase transition (PIPT) has caused great excitement in materials science because ultra-fast alteration of the magnetic, dielectric, structural and optical properties of materials can be brought ...
Jul 14, 2011 |
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Scientists demonstrate novel ionic liquid batteries
(PhysOrg.com) -- Scientists at the NRL Materials Science and Technology Division are providing solid evidence that there is a new route towards developing novel, lightweight energy storage devices. By moving ...
Apr 15, 2011 |
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T-Shirt replaces battery: Fiber-based electrochemical micro-supercapacitor
Will we soon be plugging our mobile phone into our t-shirt instead of putting in a battery? This vision is not totally out of reach: the first steps in this direction have already been taken.
Nanotechnology / Nanomaterials
Jan 18, 2011 |
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Iron legacy leaves soil high in manganese
(PhysOrg.com) -- Iron furnaces that once dotted central Pennsylvania may have left a legacy of manganese enriched soils, according to Penn State geoscientists. This manganese can be toxic to trees, especially ...
Dec 10, 2010 |
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Manganese
Manganese ( /ˈmæŋɡəniːz/ mang-gə-neez) is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. As a free element, manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.
Manganese phosphating is used as a treatment for rust and corrosion prevention on steel. Depending on their oxidation state, manganese ions have various colors and are used industrially as pigments. The permanganates of alkali and alkaline earth metals are powerful oxidizers. Manganese dioxide is used as the cathode (electron acceptor) material in standard and alkaline disposable dry cells and batteries.
Manganese(II) ions function as cofactors for a number of enzymes in higher organisms, where they are essential in detoxification of superoxide free radicals. The element is a required trace mineral for all known living organisms. In larger amounts, and apparently with far greater activity by inhalation, manganese can cause a poisoning syndrome in mammals, with neurological damage which is sometimes irreversible.
For more information about Manganese, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
