Navigation Links
Dancing 'adatoms' help chemists understand how water molecules split
Date:3/16/2009

RICHLAND, Wash. -- Single oxygen atoms dancing on a metal oxide slab, glowing brighter here and dimmer there, have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a chemical reaction that had previously only been talked about. The new work improves our understanding of the chemistry needed to generate hydrogen fuel from water or to clean contaminated water.

The scientists made the discovery while trying to determine the basics of how titanium dioxide -- a compound sometimes found in sunscreen -- breaks down water. The chemical reactions between water and oxygen are central to such varied processes as hydrogen production, breaking down pollutants, and in solar energy.

"Oxygen and water are involved in many, many reactions," said physicist Igor Lyubinetsky at the Department of Energy's Pacific Northwest National Laboratory, who reported the team's results in March 6 issue of the Physical Review Letters. "This mobility might interfere with some reactions and help others."

Bustling Bright Spots

While exploring titanium dioxide as a way to split water into its hydrogen and oxygen pieces, researchers can use a technique called scanning tunneling microscopy to watch the chemical reaction. The surface of a slab of titanium dioxide is like a corn field: rows of oxygen atoms rise from a patch of titanium atoms. The alternating oxygen and titanium rows look like stripes.

Scientists can also see some atoms and molecules that come to rest on the surface as bright spots. One such visible atom is a single oxygen atom that comes to rest on a titanium atom, called an "adatom". Chemists can only see water molecules if they drop the temperature dramatically -- at ambient temperature, water moves too fast for the method to pick them up.

In this work, PNNL scientists studied water's reactions with titanium dioxide at ambient temperature
'/>"/>

Contact: Mary Beckman
mary.beckman@pnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Dancing atoms now understood
2. Clemson chemists discover new way antioxidants fight debilitating diseases
3. Chemists get grip on slippery lipids
4. Good earth: Brown chemists show origin of soil-scented geosmin
5. Team of chemists receives $5 million grant to develop enzyme mimics
6. Biochemists reveal details of mysterious bacterial microcompartments
7. Biologists are from Mars, chemists are from Venus?
8. Glowing films developed by UC San Diego chemists reveal traces of explosives
9. NIST chemists get scoop on crude oil from pig manure
10. Chemists make beds with soft landings
11. Biochemists manipulate fruit flavor enzymes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dancing 'adatoms' help chemists understand how water molecules split
(Date:11/21/2014)... C-Labs LLC, a leading provider of remote ... today announced the appointment of John Traynor ... strategic advisor to the firm, Mr. Traynor will now ... based out of the C-Labs office in ... Muench , Chief Executive Officer. Photo - ...
(Date:11/18/2014)... , Nov. 18, 2014   EyeLock ... authentication solutions, and MorphoTrust USA (Safran), ... services, today announced a strategic partnership to offer ... motor vehicle administration (MVA), airport screening and financial ... identity-related solutions, MorphoTrust serves consumers through a nationwide ...
(Date:11/7/2014)... Researchers led by Dr. Debra Auguste, associate professor, ... at The City College of New York, have ... treatment for one of the most aggressive forms ... (TNBCs) have a high mortality rate owing to ... effective therapeutic options. However, Professor Auguste,s team, discovered ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3
... MADISON, WI, SEPTEMBER 2, 2008 Varying the rate of ... intuitive sense, as farmers have long observed differences in ... The availability of spatial yield information from combines equipped ... improved management. So, optimizing inputs to match ...
... biomarkers for the detection of diseases including cancer and ... Cell Research . The findings pave the way ... are a class of naturally occurring small non-coding RNAs ... reporting individual miRNAs as diagnostic biomarkers of specific cancers ...
... University nanophotonics pioneer Naomi Halas has won one of ... the University of Pennsylvania,s Nano/Bio Interface Center (NBIC). ... the innovative synthesis of nanostructures. She will accept the ... ceremonies Oct. 29 in Philadelphia. Halas is the ...
Cached Biology News:A little nitrogen can go a long way 2A little nitrogen can go a long way 3
(Date:11/24/2014)... DUBAI , UAE, November 24, 2014 ... prestigious "Sheikh Hamdan Bin Rashid Al Maktoum Awards for ... in Dubai, United Arab Emirates , ... http://photos.prnewswire.com/prnh/20141124/717861 ) , The Carter Center ... Medical Services is actively involved in numerous programs that ...
(Date:11/24/2014)... Belgium , Nov. 24, 2014 VolitionRx ... developing diagnostic tests for cancer and other conditions, today announced ... presented at the Science for Business BioWin Day 2014, being ... . The data come from VolitionRx,s lung cancer pilot study, ... of the Centre Hospitalier Universitaire (CHU) de Liege in ...
(Date:11/24/2014)... FRANCISCO, Calif. , Nov. 24, 2014   Veracyte, ... Bonnie H. Anderson , president and chief executive officer, ... Jaffray 26 th Annual Healthcare Conference on Tuesday, December ... York . The live audio webcast and ... http://investor.veracyte.com . Please connect to the website at least ...
(Date:11/24/2014)... MD (PRWEB) November 24, 2014 ... underrepresented patient populations into clinical trials at its ... , “Continental was created with the idea ... play a fundamental role in medical advances," said ... Tuskegee syphilis experiment to the immortal cell line ...
Breaking Biology Technology:Five US Winners Among Recipients of Hamdan Medical Awards 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 4VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 5VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 6Veracyte to Present at the Piper Jaffray 26th Annual Healthcare Conference 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 3
... 21, 2011 MDOUTLOOK®, the global oncology intelligence initiative ... Annual Quick Poll research launched immediately following this month,s ... (ASCO) in Chicago. These Quick Polls expand on previous ... annual meetings, as well as similar efforts after the ...
... 21, 2011 Waife & Associates, Inc. (W&A), change ... is adding the consulting practice of Mark Di Ianni, ... Di Ianni has been a senior executive in the ... and/or managing a series of successful companies. In recent ...
... ROCKVILLE, Md., June 21, 2011 For successful ... needs to be aligned from concept through the ... (RAPS)webinar, participants will learn why Regulatory and Marketing ... product claims and promote the product for both ...
Cached Biology Technology:MDOUTLOOK® 4th Annual Quick Polls From ASCO 2011: Report on Clinical Impact of New Developments in Cancer Therapeutics 2MDOUTLOOK® 4th Annual Quick Polls From ASCO 2011: Report on Clinical Impact of New Developments in Cancer Therapeutics 3Waife & Associates, Inc. Adds Mark Di Ianni as Principal Consultant 2How-To RAPS Webinar June 30: Regulatory and Marketing Symbiosis from Concept to Launch 2
UltraMount is formulated for coverslipping sections stained with alcohol soluble chromogens, such as Fast-Red or AEC. No heating is required prior to use. Coverslips may be removed by soaking in wate...
AM100 is an aqueous-based, permanent mounting media designed for use with alkaline phosphatase and immunoperoxidase stained tissue sections....
...
... Fixation Buffer, used in conjunction with ... can be used to fix and ... staining of cytokines and other cytoplasmic ... been specially formulated for reducing non-specific ...
Biology Products: