Navigation Links
Catalyst that makes hydrogen gas breaks speed record
Date:8/12/2011

llock. "The hydrogenase moves the protons around in what we call a proton relay. Where the protons go, the electrons will follow."

A Bauble for Energy

Based on the hydrogenase's proton relay, the experimental catalyst contained regions that dangled off the main structure and attracted protons, called "pendant amines." A pendant amine moves a proton into position on the edge of the catalyst, while a nickel atom in the middle of the catalyst offers a hydrogen atom with an extra electron (that's a proton and two electrons for those counting).

The pendant amine's proton is positive, while the nickel atom is holding on to a negatively charged hydrogen. Positioned close to each other, the opposites attract and the conglomerate solidifies into a molecule, forming hydrogen gas.

With that plan in mind, the team built potential catalysts and tested them. On their first try, they put a bunch of pendant amines around the nickel center, thinking more would be better. Testing their catalyst, they found it didn't work very fast. An analysis of how the catalyst was moving protons and electrons around suggested too many pendant amines got in the way of the perfect reaction. An overabundance of protons made for a sticky catalyst, which pinched it and slowed the hydrogen-gas-forming reaction down.

Like good gardeners, the team trimmed a few pendant amines off their catalyst, leaving only enough to make the protons stand out, ready to accept a negatively charged hydrogen atom.

Fastest Cat in the West

Testing the trimmed catalyst, the team found it performed much better than anticipated. At first they used conditions in which no water was present (remember, they used water stand-ins), and the catalyst could create hydrogen gas at a rate of about 33,000 molecules per second. That's much faster than their natural inspiration, which clocks in at around 10,000 per second.

However, most real-life applications will have
'/>"/>

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

Page: 1 2 3 4

Related biology technology :

1. Catalyst Pharmaceutical Partners Reports Second Quarter 2008 Financial Results
2. NIST and partners identify tiny gold clusters as top-notch catalysts
3. Catalyst Pharmaceutical Partners, Inc. Announces a $4.5 Million Registered Direct Common Stock Offering
4. Catalyst Pharmaceutical Partners to Present at the Rodman & Renshaw 10th Annual Global Investment Conference
5. PointCross Releases Catalyst for Building Business-Ready SharePoint Solutions in 1/10th the Time
6. Eurotech Catalyst Module Awarded to Allen Organ Company From Arrow Electronics
7. Coalition for the Advancement of Medical Research Releases New White Paper, Catalyst for Cures: Embryonic Stem Cell Research
8. New catalyst paves the path for ethanol-powered fuel cells
9. Brown chemists create more efficient palladium fuel cell catalysts
10. Catalyst Biosciences Expands Scientific Advisory Board With Leading Experts in Protease Therapeutic Discovery and Development
11. Researchers create catalysts for use in hydrogen storage materials
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Catalyst that makes hydrogen gas breaks speed record
(Date:8/26/2015)... , Aug. 26, 2015 China Cord Blood ... China,s leading provider of cord blood collection, ... storage services, today announced that the Company has been ... an entity wholly owned by Mr. Yuen Kam, chairman ... acquired the outstanding shares (the "Shares") of  Excellent China ...
(Date:8/26/2015)... ... August 26, 2015 , ... PRC Clinical, a Clinical Trial ... with local sponsors in southern California. The Clinical Trial Management Expert CRO seeks to ... regulatory pathways., , Stem Cell Meeting on the Mesa ...
(Date:8/25/2015)... ... August 25, 2015 , ... A ... are cancerous is described by University of Illinois researchers in the Journal ... photonics. , In “ Breast cancer diagnosis using spatial light interference microscopy ,” ...
(Date:8/25/2015)... ... , ... One of the world’s foremost authorities on supply chain risk management ... on a mission for the past two weeks. She’s been scrambling to warn the ... two massive explosions that occurred on August 12 at the Ruihai International Logistics warehouse ...
Breaking Biology Technology:China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 2China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 3PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3New Optical Method Promises Faster, More Accurate Diagnosis of Breast Cancer 2New Optical Method Promises Faster, More Accurate Diagnosis of Breast Cancer 3New Optical Method Promises Faster, More Accurate Diagnosis of Breast Cancer 4Resilinc Supply Chain Expert Warns: Impact of Tianjin Chemical Explosions Will be Far Worse than Reported 2Resilinc Supply Chain Expert Warns: Impact of Tianjin Chemical Explosions Will be Far Worse than Reported 3Resilinc Supply Chain Expert Warns: Impact of Tianjin Chemical Explosions Will be Far Worse than Reported 4
... Even the most innovative thinker has a lot of ... to market, attendees learned at the Wisconsin Innovation Service ... University of Wisconsin-Whitewater. , ,Industry leaders, CEOs, lawyers and successful ... just starting out or looking for a way to rise ...
... Editors note: This is the first of a series of columns ... and advice on IT leadership and the challenges they face. ... 95 percent of his customers want more of what he has ... ready to meet that demand. , ,David Wallace is the CIO ...
... your competitors is easy. The difficult part is finding ... by seeking intelligence instead of information. , ,The differences ... a purpose and a process for gathering information ensures ... merely informative. , ,A well-defined purpose allows you to ...
Cached Biology Technology:More than ideas needed to make profits, experts say 2MATC faces demand for less paper and more integration 2MATC faces demand for less paper and more integration 3Are you gathering information or intelligence about competitors? 2Are you gathering information or intelligence about competitors? 3
(Date:8/6/2015)... and TELTOW, Germany , August 6, ... Conference, SensoMotoric Instruments (SMI) shows the world,s ... , based on Epson,s Moverio BT-200 see-through head ... With this new solution, unprecedented quality and efficiency is ... with context-sensitive displays. For the first time, professionals and ...
(Date:8/5/2015)... 5, 2015 According to a ... Market by Software, Services, Vertical (BFSI, Airport, IT & Telecom, ... Global Forecast to 2020", published by MarketsandMarkets, defines and ... into various segments. The global PIAM Market is estimated ... Million by 2019, at a CAGR of 14.9 % ...
(Date:8/5/2015)... 5, 2015 The biosensors market is proving ... penetration into newer sectors, and development of devices resulting ... space has seen the entry of multiple participants each ... (Photo - http://photos.prnewswire.com/prnh/20150805/255570 ) ... of the Global Biosensors Market ( http://www.frost.com/nee9 ), ...
Breaking Biology News(10 mins):SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3Physical Identity and Access Management Market Worth $546.2 Million by 2019 2Physical Identity and Access Management Market Worth $546.2 Million by 2019 3Physical Identity and Access Management Market Worth $546.2 Million by 2019 4Innovative Biosensors Incite Use in Non-Traditional Applications 2Innovative Biosensors Incite Use in Non-Traditional Applications 3Innovative Biosensors Incite Use in Non-Traditional Applications 4
... Dr. Peter Glynn, a professor at the University of ... been selected to receive the 2007-2008 Provosts Award for ... pursuits, and provides the recipient with a cash award ... time Glynn, who received the award when it was ...
... from urban and agriculture land-use is interfering with our ... before it endangers delicate downstream ecosystems, reports a nationwide ... (Marine Biological Laboratory) Ecosystems Center. The ... are based on a major study of 72 streams ...
... one of the worlds most endangered speciesa North Island brown ... been incubating the egg for five weeks, following a month ... signs of pipping: the process in which the chick starts ... isolet for four days and is now in a specially ...
Cached Biology News:UM coral scientist Peter Glynn wins award for scholarly activity 2Increasing nitrogen pollution overwhelms filtering capability of streams 2Rare North Island brown kiwi hatches at the Smithsonian's National Zoo 2
Ubiquitin Related I Sampler Kit 10 mu g each...
Protein Tyrosine Phosphatase Sampler Kit 10g each...
Purified anti-SOCS3...
Monoclonal Antibody toSynapsin I a and I b Neurofilament associated protein from mouse brain extracts (4)....
Biology Products: