Navigation Links
Synthetic molecule first electricity-making catalyst to use iron to split hydrogen gas
Date:2/17/2013

to test. Then, with the best-working molecule up to that point, they determined and tweaked the shape and the internal electronic forces to make additional improvements.

One of the tricks they needed the catalyst to do was to split hydrogen atoms into all of their parts. If a hydrogen atom is an egg, the positively charged proton that serves as the nucleus of the atom would be the yolk. And the electron, which orbits around the proton in a cloud, would be the white. The catalyst moves both the proton-yolks and electron-whites around in a controlled series of steps, sending the protons in one direction and the electrons to an electrode, where the electricity can be used to power things.

To do this, they need to split hydrogen molecules unevenly in an early step of the process. One hydrogen molecule is made up of two protons and two electrons, but the team needed the catalyst to tug away one proton first and send it away, where it is caught by a kind of molecule called a proton acceptor. In a real fuel cell, the acceptor would be oxygen.

Once the first proton with its electron-wooing force is gone, the electrode easily plucks off the first electron. Then another proton and electron are similarly removed, with both of the electrons being shuttled off to the electrode.

The team determined the shape and size of the catalyst and also tested different proton acceptors. With the iron in the middle, arms hanging like pendants around the edges draw out the protons. The best acceptors stole these drawn-off protons away quickly.

With their design down, the team measured how fast the catalyst split molecular hydrogen. It peaked at about two molecules per second, thousands of times faster than the closest, non-electricity making iron-based competitor. In addition, they determined its overpotential, which is a measure of how efficient the catalyst is. Coming in at 160 to 220 millivolts, the catalyst revealed itself to be similar in ef
'/>"/>

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

Page: 1 2 3

Related biology news :

1. Synthetic Biologics to Present at the 2013 BIO CEO & Investor Conference
2. Developing microbial cell factories by employing synthetic small regulatory RNAs
3. Oscillating gel gives synthetic materials the ability to speak
4. Synthetic and biological nanoparticles combined to produce new metamaterials
5. New report finds increase in media coverage of synthetic biology
6. Synthetic fuel could eliminate US need for crude oil
7. Microchoreography: Researchers use synthetic molecule to guide cellular dance
8. Nottingham part of £20m investment for UK synthetic biology
9. Synthetic biofilter wins through to the top Sweet 16 in Boston
10. Collagen-seeking synthetic protein could lead doctors to tumor locations
11. Synthetic Biology Scorecard finds federal agencies responding to bioethics report
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2014)... July 9, 2014Biofuels derived from the oils produced by ... fuels. To achieve this goal, optimization of cost effective ... pond systems, is needed. Sapphire Energy has developed an ... pond algae cultivation systems, described in Industrial Biotechnology ... publishers. The article is available on the Industrial ...
(Date:7/9/2014)... Cancer Genome Atlas (TCGA) Research Network have identified ... lung adenocarcinoma, the most common subtype of lung ... the number of possible therapeutic targets for this ... patients with treatable mutations because many potent cancer ... TCGA is jointly funded and managed by the ...
(Date:7/9/2014)... era of increasing concern about the prevalence of ... a promising new pathway to disabling disease: blocking ... The scientists showed how bacterial siderophore, a small ... to fan bacterial growth as well as ... this infection process. Their findings appear in a ...
Breaking Biology News(10 mins):Controlling contamination in open algae ponds for biofuels 2Study identifies novel genomic changes in the most common type of lung cancer 2Study identifies novel genomic changes in the most common type of lung cancer 3Bacteria hijack plentiful iron supply source to flourish 2
... American Societies for Experimental Biology (FASEB) announces the opening ... DNA in Mammalian Genomes. Mobile elements have been ... and altering functions within mammalian genomes, and continue to ... explosion of data from high throughput sources, as well ...
... prepared a patient to inhale a panic-inducing dose of carbon ... the mixture, she cried for help, overwhelmed by the sensation ... her 40s known as SM, has an extremely rare condition ... amygdala, an almond-shaped area in the brain long known for ...
... for Experimental Biology (FASEB) announces the opening of registration ... and Flagella. The 2013 Biology of Cilia ... conference where basic and translational research intersect to drive ... ciliopathies. The underlying theme of the 2013 conference is ...
Cached Biology News:Human brain is divided on fear and panic 2Human brain is divided on fear and panic 3
(Date:1/15/2014)... 15, 2014 AudioNotch is the internet's ... for the treatment of tinnitus. Patients listen to sound ... over a period of weeks to months, their tinnitus volume ... two forms: Notched Music and Notched White Noise. Now, AudioNotch ...
(Date:1/14/2014)... January 14, 2014 Carahsoft and CDS ... January 23, 2014 at 2pm EST (11am PST), “Natural ... topic focuses on how technology can turn raw, heterogeneous ... for government agencies. The online webinar will last approximately ...
(Date:1/14/2014)... As pet owners drew up their lists of New Year,s ... better care of my furry companion." Nowadays there are pet salons, ... cases to take the little canine or feline darlings along wherever ... buy some pricey toys at the pet store. But anyone who ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. ... together with two institutes from the National Institutes of ... for bringing safer, more effective treatments to patients on ... Center for Advancing Translational Sciences (NCATS) and the National ...
Breaking Biology Technology:Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3
... ... information company that develops and supplies irrigation management solutions. The company was approved for ... irrigation management control where “the plant is the sensor™.” , ... (Vocus) April 30, 2010 -- ...
... BEACH, California , and AMSTERDAM , April ... Meeting of the American Society of Breast,Surgeons, Agendia, a ... Research and Treatment has published an important study,demonstrating the ... breast cancer recurrence according to the MammaPrint test. The,ASBS ...
... April 29  Scotland will showcase the ... the world,s leading pharma and biotech companies to its ... in Chicago .  Heading into the conference, ... the nation,s unique integrated industry approach will continue to ...
Cached Biology Technology:$250,000 Awarded to Smartfield, Inc. of Lubbock, TX by the Texas Emerging Technology Fund 2New Study Demonstrates Patients With High-Risk MammaPrint Profile Benefit From Chemotherapy 2New Study Demonstrates Patients With High-Risk MammaPrint Profile Benefit From Chemotherapy 3Scotland Announces New Life Science Leadership and Investments at BIO 2010 2Scotland Announces New Life Science Leadership and Investments at BIO 2010 3Scotland Announces New Life Science Leadership and Investments at BIO 2010 4
... cytopathic effect inhibition assays, also known as CPE ... culture supernatents; serum from PK studies and delivery ... defined as the quantity of interferon required per ... infection by 50%. All standards used ...
Request Info...
Request Info...
Request Info...
Biology Products: