Latest chemical reaction Stories

2013-07-02 14:05:08

Electron transfer is a process by which an atom donates an electron to another atom. It is the foundation of all chemical reactions, and is of intense research because of the implications it has for chemistry and biology. When two molecules interact, electron transfer takes place in a few quadrillionths (10-15¬) of a second, or femtoseconds (fsec), meaning that studying this event requires very time-sensitive techniques like ultrafast spectroscopy. However, the transfer itself is...

2013-07-01 19:03:34

In the world, there are a lot of small molecules people would like to get rid of, or at least convert to something useful, according to University of Wisconsin-Madison chemist Robert J. Hamers. Think carbon dioxide, the greenhouse gas most responsible for far-reaching effects on global climate. Nitrogen is another ubiquitous small-molecule gas that can be transformed into the valuable agricultural fertilizer ammonia. Plants perform the chemical reduction of atmospheric nitrogen to ammonia...

Quantum Tunneling Is The Secret To Alcohol Reactions In Space
2013-06-30 12:56:40

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online Understanding chemical reactions in space is incredibly difficult. First of all, the extremely cold temperatures would all but preclude most chemicals mixing, as there is simply insufficient energy to ignite the reactions. Yet, observational data suggests that complex compounds are being created in this inhospitable environment. Now, however, a new study reveals that a quantum effect known to be the key in stellar physics may...

2013-06-20 23:28:15

Industrial palladium-copper catalysts change their structures before they get to work, already during the activation process. As a result, the reaction is catalyzed by a catalyst that is different from the one originally prepared for it. This surprising discovery was made by researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw. Removing of nitrates from ground water or chlorine from dry cleaning wastes are important environmental protection...

Powerful X-Ray Lets Researchers Watch Chemical Reactions In Real Time
2013-03-15 10:08:39

redOrbit Staff & Wire Reports - Your Universe Online Using an extremely fast and extremely powerful X-ray laser, researchers have successfully observed how a catalyst behaves during a chemical reaction — work that they claim could be an important step forward in the search for cleaner and more efficient sources of energy. Catalysts are substances that modify and increase the rate of a chemical reaction without being consumed in the process, and they are essential to the...

Chemical Processes Controlled With Ultra-short Laser Pulses
2012-12-12 16:29:32

Technische Universität Wien How can molecules be split in a controlled manner? A new experiment at the TU Vienna shows how research into ultra-short laser pulses can be combined with chemistry. Chemical reactions occur so quickly that it is completely impossible to observe their progress or to control them using conventional methods. However, new developments in electrical engineering and quantum technology enable us to achieve a more exact understanding and improved...

Simulations On Ranger Supercomputer Help Researchers Understand Biofuel Reactions
2012-12-04 12:44:16

Texas Advanced Computing Center, The University of Texas at Austin In a well-known fairy tale, Rumpelstiltskin used magic to weave straw into gold. Today, scientists are reversing that formula – using gold to turn straw (and other forms of biomass) into today's global currency: energy. The magic involves a special nanocatalyst, in which minute particles of gold dot the surface of titanium-oxide. The forces that emerge from the combination of these two materials are strong enough...

X-rays Help Understand How Mechanical Action May Lead To Greener Chemistry
2012-12-03 10:33:46

European Synchrotron Radiation Facility Solvents are omnipresent in the chemical industry, and are a major environmental and safety concern. Therefore the large interest in mechanochemistry: an energy-efficient alternative that avoids using bulk solvents and uses high-frequency milling to drive reactions. Milling is achieved by the intense impact of steel balls in a rapidly moving jar, which hinders the direct observation of underlying chemistry. Scientists have now for the first time...

Pharmaceuticals Go Green
2012-11-09 20:32:34

Alan McStravick for redOrbit.com — Your Universe Online It seems even the pharmaceutical industry is getting on the ℠go green´ bandwagon. Researchers from the University of Gothenburg in Sweden are finding that there is a more ecologically prudent manner for the production of pharmaceuticals. When labs are producing pharmaceuticals, they do so through a series of chemical reactions. These reactions require a catalyst to occur. Chemically speaking, a catalyst is a...

Electrons Frozen In Flight
2012-10-16 13:36:17

Using the world´s fastest laser pulses, which can freeze the ultrafast motion of electrons and atoms, UA physicists have caught the action of molecules breaking apart and electrons getting knocked out of atoms. Their research helps us better understand molecular processes and ultimately be able to control them in many possible applications. In 1878, a now iconic series of photographs instantly solved a long-standing mystery: Does a galloping horse touch the ground at all times? (It...

Latest chemical reaction Reference Libraries

2014-01-12 00:00:00

Chemistry is a physical science concerned with the composition, structure, and properties of matter. It also deals with the changes that matter undergoes during chemical reactions. It incorporates the studies of various atoms, molecules, crystals and other aggregates which can be combined or isolated and concepts of energy and entropy through which chemical processes occur. Modern chemistry (from the Egyptian kēme, meaning "earth") evolved from alchemy following the chemical revolution...

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