Navigation Links
In chemical reactions, water adds speed without heat
Date:5/21/2012

MADISON An international team of researchers has discovered how adding trace amounts of water can tremendously speed up chemical reactionssuch as hydrogenation and hydrogenolysisin which hydrogen is one of the reactants, or starting materials.

Led by Manos Mavrikakis, the Paul A. Elfers professor of chemical and biological engineering at the University of Wisconsin-Madison, and Flemming Besenbacher, a professor of physics and astronomy at the University of Aarhus, Denmark, the team published its findings in the May 18 issue of the journal Science.

Hydrogenation and hydrogenolysis reactions have huge applications in many key industrial sectors, including the petrochemical, pharmaceutical, food and agricultural industries. "In the petrochemical industry, for example, upgrading of oil to gasoline, and in making various biomass-derived products, you need to hydrogenate moleculesto add hydrogenand all this happens through catalytic transformations," says Mavrikakis, who is among the top-100 chemists of the 2000-10 decade, according to Thomson Reuters.

A chemical reaction transforms a set of molecules (the reactants) into another set of molecules (the products), and a catalyst is a substance that accelerates that chemical reaction, while not itself being consumed in the process.

In industrial applications, the speed of catalytic transformations is important, says Mavrikakis. "The rate at which the hydrogen atoms diffuse on the surfaces of the catalyst determines, to a large extent, the rate of the chemical reactionthe rate at which we produce the products we want to produce," he says.

While many researchers have observed that water can accelerate chemical reactions in which hydrogen is a reactant or a product, until now, they lacked a fundamental grasp of how that effect was taking place, says Mavrikakis. "Nobody had appreciated the importance of water, even at the parts per million level," he says.

In
'/>"/>

Contact: Manos Mavrikakis
manos@engr.wisc.edu
608-262-9053
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Defending against chemical acts of terrorism
2. CELEXION Awarded Patent on Biosynthesis of Renewable Chemicals
3. 2 for 1: Simultaneous size and electrochemical measurement of nanomaterials
4. AMPAC Fine Chemicals Continues to Invest in Quality Systems
5. Bio architecture lab technology converts seaweed to renewable fuels and chemicals
6. Elsevier and Federation of Biochemical Societies Launch New Journal: FEBS Open Bio
7. Sutro Biopharma to Present its Biochemical Protein Synthesis Technology at BioProduction Conference 2011 in Berlin
8. Chemical make-up of Gulf of Mexico plume determined
9. AMPAC Fine Chemicals Completes Contract Manufacturing Agreement for Smallpox Countermeasure API
10. China Agri-Business Acquired Management and Operation Rights of Shaanxi Qinfeng Agrochemical Inc. in Xian, China
11. Reportlinker Adds Global Immunochemicals Industry
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2015)... May 5, 2015  Blueprint Medicines (NASDAQ: ... initial public offering of 9,367,708 shares of common ... per share, including shares of common stock issued ... their option to purchase additional shares. The gross ... Medicines were approximately $168.6 million, before underwriting discounts and ...
(Date:5/5/2015)... VIEW, Calif. , May 5, 2015  23andMe, ... launch of the Lupus Research Study in ... 5,000 individuals with systemic lupus erythematosus, more commonly known ... the genetics of lupus. The effort is also in ... with Lupus Awareness Month in May. Approximately ...
(Date:5/5/2015)... , May 05, 2015 Research ... has announced the addition of the ... to their offering. Macromolecules which ... undergo separation or are broken into smaller ... products. This separation requires various advanced systems ...
(Date:5/5/2015)... The Academy of Model Aeronautics is pleased to ... Gov. Mike Pence, has declared August 15, 2015, as ... Family Fest and aviation themed Motorcycle Rally in Muncie, ... Warrior Project. , National Model Aviation Day has been ... organization for model aviation—to celebrate the history of model ...
Breaking Biology Technology:Blueprint Medicines Announces Closing of Initial Public Offering 223andMe Launches the Lupus Research Study in Collaboration with Pfizer Inc. 223andMe Launches the Lupus Research Study in Collaboration with Pfizer Inc. 3Global Separation Systems Market in Biotechnology 2015-2019 - Trends and Forecasts for the $28 Billion Market 2State of Indiana proclaims August 15 as Model Aviation Day 2
... cell technology to battle ... ... Bio, Inc.,announced today that John T. Dimos, Ph.D., first author of ... Can Be Differentiated into Motor Neurons," will join its team of,scientists ...
... Aug. 6 NxStage Medical, Inc.,(Nasdaq: NXTM ... announced that Jeffrey H. Burbank, Chief Executive Officer ... the following schedule,of investor conferences. Where possible, a ... http://www.nxstage.com/ir.cfm at the time of each,conference., ...
... by 11% Discovery ... Products and Services Growth -, HOPKINTON, Mass., Aug. 6 ... quarter financial,results for 2008. Revenues were $34.0 million for the quarter, ... Revenues were impacted,by a $3.5 million decline from 2007 in collaboration-related ...
Cached Biology Technology:iZumi Bio, Inc. Recruits Leading iPS Scientist, John Dimos, to Translate Stem Cell Breakthrough Into Patient Benefits 2NxStage Announces Investor Conference Schedule 2Caliper Life Sciences Reports Second Quarter 2008 Results 2Caliper Life Sciences Reports Second Quarter 2008 Results 3Caliper Life Sciences Reports Second Quarter 2008 Results 4Caliper Life Sciences Reports Second Quarter 2008 Results 5Caliper Life Sciences Reports Second Quarter 2008 Results 6Caliper Life Sciences Reports Second Quarter 2008 Results 7Caliper Life Sciences Reports Second Quarter 2008 Results 8Caliper Life Sciences Reports Second Quarter 2008 Results 9
(Date:3/23/2015)... , Mar. 23, 2015 NXT-ID, Inc. (NASDAQ: ... focused on the growing mobile commerce market, announces its biometric ... advertising campaign on CNBC television starting March 30 th ... commence airing in New York markets. ... said: "We are excited about our new ad campaign following ...
(Date:3/20/2015)... , Mar. 19, 2015 Research and Markets ... "Hand Geometry - Global Strategic Business Report" report ... markets for Hand Geometry in US$ Thousands. The report provides ... , Japan , Europe ... , and Rest of World. Annual estimates ...
(Date:3/20/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/vkzvcs/iris_biometrics ) ... Global Strategic Business Report" report to their offering. ... in US$ Thousands. The report provides separate comprehensive analytics for ... , Europe , Asia-Pacific ... Latin America . Annual estimates and ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5
... This summer, Donald Sparks, S. Hallock du Pont Chair ... Delaware and director of the Delaware Environmental Institute (DENIN), ... of Soil Sciences for outstanding contributions in soil science ... to soils and the environment. The award, which ...
... at the University of Leicester may identify reasons underlying ... men. In her doctoral study, Cardiovascular Sciences student ... male predominance of AAA, with a particular emphasis on ... study will be showcased at the University of Leicester,s ...
... The Child Nutrition and WIC Reauthorization Act, 2004, requires ... they participate in federal school meal programs. As ... include nutrition education activities which promote student wellness. ... Journal of Nutrition Education and Behavior evaluates elementary ...
Cached Biology News:Sparks to receive Liebig Medal from International Union of Soil Sciences 2Sparks to receive Liebig Medal from International Union of Soil Sciences 3Increased likelihood of male death from disease 2Are school wellness policies stuck in the Ice Age? 2Are school wellness policies stuck in the Ice Age? 3
... The RapidPlate 96/384 workstation offers precise 96 ... scalable format. Utilizing 100ul and 200ul disposable ... delivers excellent accuracy and precision across a ... rotary deck includes two positions that enable ...
... Rabbit Tissue Arrays contain 60 rabbit tissue samples ... contains 4 unstained slides and 1 hematoxylin and ... slide contains 15 different tissues from 4 rabbit ... per slide. Each tissue sample (or core) is ...
A univariate (peak height or area) quantitative multi-component analysis package....
... micro 10 represents a major advance in ... the benefits of large robotic liquid handlers ... dispenser. Dispensing accurate volumes ranging from 10mL ... has unique advantages not yet found in ...
Biology Products: