Navigation Links
Diamond catalyst shows promise in breaching age-old barrier
Date:6/30/2013

MADISON -- 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 as a matter of course, but for humans to do that in an industrial setting, a necessity for modern agriculture, requires subjecting nitrogen to massive amounts of energy under high pressure.

"The current process for reducing nitrogen to ammonia is done under extreme conditions," explains Hamers, a UW-Madison professor of chemistry. "There is an enormous barrier you have to overcome to get your final product."

Breaching that barrier more efficiently and reducing the huge amounts of energy used to convert nitrogen to ammonia by some estimates 10 percent of the world's electrical output has been a grail for the agricultural chemical industry. Now, that goal may be on the horizon, thanks to a technique devised by Hamers and his colleagues and published today (June 30, 2013) in the journal Nature Methods.

Like many chemical reactions, reducing nitrogen to ammonia is a product of catalysis, where the catalytic agent used in the traditional energy-intensive reduction process is iron. The iron, combined with high temperature and high pressure, accelerates the reaction rate for converting nitrogen to ammonia by lowering the activation barrier that otherwise keeps nitrogen, one of the most ubiquitous gases on the planet, intact.

"The nitrogen molecule is one of the happiest molecules around," notes Hamers. "It is incredibly stable. It doesn't do anything."

One of the big obstacles, according to Hamers, is that nitr
'/>"/>

Contact: Robert J. Hamers
rjhamers@wisc.edu
608-262-6371
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2

Related biology news :

1. Polycrystalline diamond drill bits open up options for geothermal energy
2. Synthetic diamond steps closer to next generation of high performance electrochemical applications
3. The genome of diamondback moth provides new clues for sustainable pest management
4. Queens Diamond Jubilee Medal for obesity research expert
5. Diamond sheds light on basic building blocks of life
6. Color in fossil insects, diamonds from the ancient ocean floor and modeling the worlds largest rivers
7. UCLA researchers find nanodiamonds could improve effectiveness of breast cancer treatment
8. KIT: Processes at the surface of catalysts
9. Low-cost nanosheet catalyst discovered to split hydrogen from water
10. Synthetic molecule first electricity-making catalyst to use iron to split hydrogen gas
11. Painting with catalysts: Nano-engineered materials for detoxifying water by use of sunlight
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/18/2014)... of 2,000 patients referred for evaluation of suspected ... diagnosis for 25 percent, including detection of a ... contributing to disease, according to a study appearing ... released to coincide with the American Society of ... the exons or coding regions of thousands of ...
(Date:10/17/2014)... . Why do ... to reproduce? And why are there two sexes anyway? These ... of the research journal Molecular Human Reproduction published ... Bielefeld University Bielefeld has compiled this special issue on sperm ... to copulate with several males in quick succession – chimpanzees ...
(Date:10/16/2014)... wages war on the human body. Battles are ... In pancreatic cancer, this stalemate—known as tumor dormancy—can ... malignant, a phenomena that is poorly understood. ... laboratory of Salvatore Torquato, a Professor of Chemistry ... surrounding tumor dormancy and the switch to a ...
Breaking Biology News(10 mins):Whole-exome sequencing shows potential as diagnostic tool 2Sperm wars 2Modeling tumor dormancy 2
... CHAMPAIGN, Ill. Up to 4 percent of the methane ... have been unable to identify the source of this potent ... culprit: a bit of "weird chemistry" practiced by the most ... the journal Science . The researchers who made ...
... blanket of snow in the winter can help boost ... is one way to ensure that blanket coverage, according ... Agricultural Research Service (ARS) soil scientist David Huggins conducted ... accumulation and soil water levels across entire fields. ARS ...
... NY) Researchers at Albert Einstein College of Medicine ... mechanism that the immune system uses to respond to infection. ... lead to new strategies for boosting effectiveness of all vaccines. ... journal Immunity . Grgoire Lauvau, Ph.D.One way the ...
Cached Biology News:Study identifies prime source of ocean methane 2Study identifies prime source of ocean methane 3No-till farming helps capture snow and soil water 2Early activation of immune response could lead to better vaccines 2
(Date:10/22/2014)... October 22, 2014 WriteResult, LLC ... – has been working with a team of researchers ... Haven Farms Community Farming Collaborative to provide electronic questionnaire ... The study, which started in May, aims to ... provides participants weekly exposure to and participation in urban ...
(Date:10/22/2014)... October 22, 2014 Physicians Choice ... cardiovascular pharmacogenetics menu, which enables healthcare providers to ... With PCLS’s evidence-based results, healthcare providers are better ... their therapy, while minimizing risks for adverse drug ... according to the FDA [1] more than 2.2 ...
(Date:10/22/2014)... 2014 /PRNewswire/ - iCo Therapeutics ("iCo" or "the Company") ... for its Oral Amphotericin B program.  The company ... vitro work involving samples from HIV/AIDS patients ... complete pre clinical studies and regulatory filings to ... trial, utilizing approximately $700,000 of funding and technological ...
(Date:10/22/2014)... and HONG KONG , ... rare disease therapeutics enterprise, announced today that rare disease ... company as vice president, research. Dr. McKew brings more ... key leadership positions at the National Institutes of Health, ... acquisition by Wyeth). Dr. McKew will lead aTyr,s efforts to ...
Breaking Biology Technology:myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 2PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 3iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 2iCo Therapeutics Announces Advancement of Oral Amphotericin B Program 3aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3
... Md., May 20 Martek Biosciences Corporation (Nasdaq: ... of its second quarter of fiscal 2009 on June 3, ... the release, at 4:45 p.m. ET Martek will conduct a ... interested parties may listen to the call live via webcast ...
... Launch into High Growth Brazilian Market for Aesthetic ... announced today the receipt of ANVISA clearance to ... in Brazil. ANVISA (Agencia Nacional de Vigilancia ... regulatory agency charged with clearing all applications to ...
... Bulletin Board: SNBP) ("Sinobiopharma" or, the "Company") is pleased to ... year and guidance on its projected financial performance for the ... , In Q1 2009, ... $0.68 million), representing a 127 percent increase year-over-year from the ...
Cached Biology Technology:Aesthera Announces ANVISA Clearance to Market Photopneumatic Platforms in Brazil 2Aesthera Announces ANVISA Clearance to Market Photopneumatic Platforms in Brazil 3Sinobiopharma Updates on Progress; Projects Increases in Sales and Revenues In 2009 2Sinobiopharma Updates on Progress; Projects Increases in Sales and Revenues In 2009 3
Use our experts and resources to develop reagent systems for your applications....
Request Info...
Ultra-sensitive, non-radioactive detection of Protein G. Measure Protein G levels quickly and easily....
IC50: 190 pg/ml · Limit of detection: 60 pg/ml...
Biology Products: